JP2009151643A - Register control device, register control method, program, and computer readable recording medium recording the program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To transmit data held in a plurality of discontinuous registers, at the request of an external device. <P>SOLUTION: This register control device 20 includes a plurality of reference destination management registers 23 holding the numbers of data registers that hold data; a register data acquiring part 26 extracting a start register number and the number of read registers from a data acquisition request of the external device, acquiring the numbers of data registers from the reference destination management registers 23 by the number indicated by the extracted number of read registers, starting from the reference destination management register 23 specified by the extracted start register number, and storing the acquired data in the acquisition sequence into a data buffer register 261; a buffering data acquisition part 27 acquiring the stored data in the storage sequence; and a response message transmitting part 29 transmitting a response message including the acquired data in the acquisition sequence. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a register control device, a register control method, a program, and a computer reading recording the program, which transmit data held in each of a plurality of non-contiguous registers in response to a request from an external device The present invention relates to a possible recording medium.

  Conventionally, there is a data measurement system in which data held by a measurement device is referred to by an external device or data is set from the external device to the measurement device. As the measurement device, for example, in a semiconductor integrated circuit manufacturing process, various test input signals are applied to components, circuits, etc., as in a burn-in test device that selects initial defective products by a screening test. There are measuring devices that measure various output signals output from a circuit or the like.

  A conventional general data measurement system composed of such a measurement device and a data acquisition / setting device for acquiring data held by the measurement device and setting data for the measurement device will be described below. To do.

(Overall configuration of conventional system)
An example of a conventional data measurement system 550 will be described with reference to FIG. FIG. 5 is a block diagram illustrating a schematic configuration of an example of the data measurement system 550.

  As shown in FIG. 5, the data measurement system 550 is configured such that, for example, one data measurement device 520 and one data acquisition / setting device 510 are communicably connected via a communication interface 560. .

  The data measuring device 520 stores various data (hereinafter referred to as measurement data) including, for example, measurement values obtained as a result of performing predetermined measurements on various components and circuits to be inspected in a register in the device itself. It is a device that holds it. The measurement data is not limited to the measurement value obtained as a result of performing the predetermined measurement, and may be data that can be acquired from the outside.

  The data measurement device 520 transmits the measurement data group held by one or more of the registers to the data acquisition / setting device 510 in response to a predetermined request message (described later) transmitted from the data acquisition / setting device 510. The data group transmitted from the data acquisition / setting device 510 is held in one or a plurality of the registers.

  The data acquisition / setting device 510 transmits a predetermined request message to the data measurement device 520 in order to request transmission of one or a plurality of measurement data held by the register in the data measurement device 520. In addition, a predetermined response message including a measurement data group transmitted from the data measurement device 520 in response to the request is received. Further, the data acquisition / setting device 510 transmits a predetermined request message in order to store one or a plurality of data in the register of the data measurement device 520.

  The communication interface 560 is not particularly limited, and is, for example, RS-232C, RS-485, GBIP (IEEE488), or the like.

  In addition, the protocol used for communication between the data acquisition / setting device 510 and the data measurement device 520 allows data to be read and written to a plurality of registers arranged continuously from a certain register using parameters. Assume a protocol. Here, in particular, the MODBUS protocol is assumed. Details of the MODBUS protocol will be described later.

  A plurality of data measuring devices 520 may be connected to the data acquisition / setting device 510 so as to be communicable.

(Configuration of data measurement device of conventional system)
Next, the configuration of the data measuring device 520 will be described. The data measuring device 520 receives a predetermined request message from the data acquisition / setting device 510 according to the transmission format of the MODBUS protocol described later. Then, as a response message to the request message, the data measurement device 520 transmits a plurality of measurement data held in the device itself to the data acquisition / setting device 510 according to a transmission format of a MODBUS protocol described later.

  Here, the predetermined request message is, here, 1) reading of data held in each of one or a plurality of continuous registers in the data measuring device 520, or 2) in the data measuring device 520. Storing data in each of one or a plurality of consecutive registers.

  In order to perform the above processing, the data measurement device 520 includes a measurement data storage register 522, a request message reception unit 525, a register access unit 526, and a response message transmission unit 529.

  The measurement data storage register 522 can read one or more measurement data acquired from a measurement unit (not shown), an external device (not shown), or one or more data included in a request message from the data acquisition / setting device 510. It is a register that holds in a stable state.

  By designating the register number of each register, it is possible to access data held in the designated register. In addition, the arrangement of the registers in the measurement data storage register 522 is fixed, and the user cannot arbitrarily change the arrangement of the registers. Also, it is assumed that the register in which the measurement data is stored is fixed and cannot be arbitrarily changed by the user.

  The request message receiving unit 525 receives the predetermined request message from the data acquisition / setting device 510 via the communication interface 560.

  The register access unit 526 performs processing according to a function (function) (described later) designated by the request message received by the request message receiving unit 525. That is, 1) reading of data held in each of one or a plurality of continuous registers in the measurement data storage register 522, or 2) each of one or a plurality of continuous registers in the measurement data storage register 522 Store data.

  The response message transmission unit 529 transmits a response message corresponding to the received request message to the data acquisition / setting device 510 via the communication interface 560 according to the transmission format of the MODBUS protocol. When the function specified in the request message is data reading, the response message transmission unit 529 transmits the data read by the register access unit 526 in the response message according to the transmission format of the MODBUS protocol. To do.

(Configuration of data acquisition / setting device of conventional system)
Next, the configuration of the data acquisition / setting apparatus 510 will be described. The data acquisition / setting device 510 transmits the predetermined request message according to the transmission format of the MODBUS protocol described later to the data measurement device 520. Then, a response message according to the transmission format of the MODBUS protocol described later is received from the data measuring device 520 in response to the request message.

  In order to perform the above processing, the data acquisition / setting apparatus 510 includes a storage unit 511, a display processing unit 512, a request message transmission unit 513, a response message reception unit 514, and a data storage unit 515.

  The storage unit 511 stores various data or measurement data included in the response message received from the data measurement device 520. It is realized by a non-volatile memory such as a RAM (Random Access Memory), a ROM (Read-Only Memory), or a flash memory.

  The display processing unit 512 performs various processes such as reading out data stored in the storage unit 511 and displaying the data on a display unit (not shown), generating the predetermined request message, and transmitting it to the request message transmission unit 513. Do.

  The request message transmission unit 513 transmits the request message transmitted from the display processing unit 512 to the data measurement device 520 via the communication interface 560.

  The response message receiving unit 514 receives the response message transmitted from the data measuring device 520 via the communication interface 560.

  The data storage unit 515 stores the measurement data included in the response message received by the response message reception unit 514 in the storage unit 511.

(MODBUS protocol)
The MODBUS protocol is a communication protocol developed by Modicon Inc. (see Non-Patent Document 1). A communication method using the MODBUS protocol is a single master / multi-slave method. Only the master device can issue a request message (communication start). Then, the slave device returns the result of executing the function designated by the request message to the master device as a response message to the request message.

  Functions specified by the request message transmitted by the master device include 1) reading data held in each of a plurality of consecutive registers in the slave device, and 2) a plurality of consecutive registers in the slave device. Storage of data in each of these.

  Next, the transmission format of the request message and response message of the MODBUS protocol will be described with reference to FIG. FIG. 6 is an explanatory diagram showing the frame structure of the request message and response message of the MODBUS protocol.

  First, “Start” is a field indicating the start of a frame.

  Next, “Address” is a field indicating the address of the slave device. When the master device transmits a request message to the slave device, the address of the slave device is set in this address field. The slave device address is also set when the slave device returns a response message to the master device. Thus, the master device can know which slave device the response message is from.

  Next, “Function” is a field indicating a function (function) designated for the slave device. The slave device performs the function specified in this field. Then, the slave device sets the same function in the corresponding response message. Thereby, the master device can know which function the response message is for.

  Next, “Data” is a field indicating data related to the function designated by Function. This field has a variable length and includes one or a plurality of data.

  Next, “ErrorCheck” is a field for error detection, for example, CRC (Cyclic Redundancy Check).

  Finally, “End” is a field indicating the end of the frame.

  The data set in the Data field differs depending on the function (function) specified in the Function field and whether it is a request message or a response message, and will be described below.

  A configuration example of a request message and a response message of the MODBUS protocol will be described with reference to FIGS.

  First, FIG. 7A is an explanatory diagram illustrating a configuration example of a request message of the MODBUS protocol for reading data held in each of a plurality of consecutive registers.

  In this case, in the Data field, “register number (start number) of the first register to read” and “number of registers to read (number of registers)” are specified in order.

  Therefore, in the example of the request message shown in FIG. 7A, in the slave device whose address is 0x06, the register number represented by the register number represented by the upper bit 0x00 and the lower bit 0x6B is changed to three registers in succession. It is specified to read the stored data.

  Next, FIG. 7B is an explanatory diagram illustrating a configuration example of a response message for the request message illustrated in FIG.

  In this case, in the Data field, “how many pieces of read data are in byte units (number of data bytes)” and “read data (data 1 to n)” are set in order.

  Therefore, in the example of the response message shown in FIG. 7B, there are three data (six in byte units) read from the slave device whose address is 0x06, and the value of each data is data 1, data 2, And the value shown in data 3 is set.

  Next, FIG. 7C is an explanatory diagram illustrating a configuration example of a request message of the MODBUS protocol for storing data in each of a plurality of consecutive registers.

  In this case, in the Data field, “register number (start number) of the first register to store”, “number of registers to store (number of registers)”, “how many data to store in bytes (data “Number of bytes)” and “data to be stored (data 1 to n)” are specified in order.

  Therefore, in the example of the request message shown in FIG. 7C, in the slave device whose address is 0x06, the register number represented by the register number represented by the upper bit 0x00 and the lower bit 0x6B is changed to three registers in succession. On the other hand, it is specified that three (six in byte units) data shown in data 1, data 2, and data 3 are stored.

  Next, FIG.7 (d) is explanatory drawing which shows the structural example of the response message with respect to the said request message shown in FIG.7 (c).

  In this case, in the Data field, “stored first register number (start number)” and “number of stored registers (number of registers)” are set in order.

Therefore, in the example of the response message shown in FIG. 7D, in the slave device whose address is 0x06, the register number of the register number represented by 0x00 and the lower bit is 0x6B from the register number represented by 0x06B to three registers in succession. On the other hand, it is set that data is stored.
Modicon Inc., “OPEN MODBUS / TCP SPECIFICATION Release 1.0 (March 29, 1999)” [searched on November 14, 2007], Internet <URL: http://www.rtaautomation.com/modbustcp/files/ Open_ModbusTCP_Standard.pdf>

  As described above, in the conventional data measurement system 550 that performs communication using the MODBUS protocol, data can be read from and written to successive registers of the measurement data storage register 522. That is, 1) When reading data from the measurement data storage register 522, it can be read only from one or a plurality of consecutive registers. In addition, in 2) writing data to the measurement data storage register 522, it is possible to write only to one or a plurality of consecutive registers.

  That is, in other words, data cannot be read from or written to a plurality of discontinuous registers.

  Therefore, when measurement data to be read is distributed and held in a plurality of discontinuous registers in the measurement data storage register 522, it is necessary to read measurement data by one of the following methods.

  As a first method, there is a method in which 1) measurement data that is not a read target is included in the read target, and the measurement data is read from a plurality of consecutive registers. In this method, data can be read out in a single communication session, but measurement data that is not the target of reading is also read out, resulting in an increase in communication time and communication amount as a whole.

  As another method, there is 2) a method of reading measurement data in a plurality of times for each of a plurality of consecutive registers. However, this method requires a plurality of communication sessions. Therefore, since the header and footer added to the data to be transmitted are required for the number of sessions, there arises a problem that the communication time and the communication amount increase as a whole.

  For example, it is assumed that the header added to the data to be transmitted is 4 bytes and the footer is 2 bytes. If it is necessary to read out measurement data divided into 10 sessions per unit time, a total of 54 bytes ((4 + 2) × (10-1)) of additional data is transmitted in 1 session. It is necessary more than reading measurement data.

  The above is particularly noticeable when a plurality of data measuring devices 520 are communicably connected to the data acquisition / setting device 510. For example, when 16 data measuring devices 520 are connected to one data acquisition / setting device 510, additional data of 864 bytes (54 × 16) is required per unit time.

  Furthermore, in the method of reading in multiple times, there is a problem that the man-hour for developing a program or the like that communicates in multiple communication sessions increases. In addition, if communication is performed in multiple communication sessions, there will be a time lag between the timings of each communication, so there will be a time lag between the acquired measurement data. Is not suitable.

  The same problem as described above also occurs when data is written to each of a plurality of discontinuous registers in the measurement data storage register 522.

  In other words, 1) In the method of including a register that is not a write target and writing data to a plurality of consecutive registers, data can be written in one communication session, but a register that is not a write target is included. In addition, since data writing is also performed, there arises a problem that communication time and communication amount increase as a whole.

  In addition, in the method 2) in which data writing is performed in a plurality of times for each of a plurality of consecutive registers, a plurality of communication sessions are required. Therefore, since the header and footer added to the data to be transmitted are required for the number of sessions, there arises a problem that the communication time and the communication amount increase as a whole.

  Furthermore, in the method of writing in multiple times, there is a problem that man-hours for developing a program or the like that communicates in multiple communication sessions increase. In addition, when communication is performed by a plurality of communication sessions, there is a time lag between the timings of the respective communications. Therefore, a time lag occurs between the data to be written. .

  When reading measurement data or writing data without using the MODBUS protocol, the data acquisition / setting device 510 and the data measurement device 520 are configured using a predetermined text-based command prepared in advance. A method of exchanging data between the two can be considered. For example, a command “mon?” Is used to read out certain measurement data, a command “alarm?” Is used to read out other measurement data, and a command “SET, 40” is used to write some data. However, it is assumed that commands “LOCK, ON” are prepared in advance for writing other data. Then, the user exchanges data between the data acquisition / setting device 510 and the data measurement device 520 by developing a program using the above commands. Such text-based commands are usually associated with data to be read or written for each command. Then, the user selects a necessary command from the command list according to the data group to be read or written, and develops software or the like for the data acquisition / setting device 510 and the data measurement device 520 to exchange with each other. Need to do.

  The present invention has been made in view of the above problems, and its purpose is to read from a data acquisition request received from an external device a start register number indicating a register to start reading and a number indicating the number of registers to be read. The number of registers is extracted, data is acquired from the number of registers specified by the number of read registers, starting from the register specified by the start register number, and a response message including the acquired data is sent to the external device Register control device and register control method for transmitting data held in each of a plurality of non-contiguous registers in response to the data acquisition request from the external device using a communication protocol of transmitting to , A program, and a computer-readable recording medium storing the program That.

  In order to solve the above-described problem, the register control device according to the present invention includes a start register number indicating a register to start reading and a number of read registers indicating the number of registers to be read from a data acquisition request received from an external device. A register that extracts and starts from the register specified by the start register number, acquires data from the number of registers specified by the number of read registers, and transmits a response message including the acquired data to the external device A control device that holds a number of data registers that hold data to be read one by one, a plurality of reference destination registers having consecutive numbers, and the start register number from a data acquisition request received from the external device And the number of read registers, and the reference specified by the extracted start register number Starting from the register, data register numbers are acquired from the number of reference destination registers specified by the number of read registers extracted above, and data is acquired from the data registers indicated by the numbers of the data registers in the acquired order. It is characterized by comprising a data acquisition means and a response message generation means for generating the response message concatenated with the acquired data in the order acquired by the data acquisition means.

  The register control method according to the present invention extracts a start register number indicating a register to start reading and a read register number indicating the number of registers to be read from a data acquisition request received from an external device, and the start register A register control method that starts from a register specified by a number, acquires data from the number of registers specified by the number of read registers, and transmits a response message including the acquired data to the external device, The start register number and the number of read registers are extracted from the data acquisition request received from the external device, and the numbers of the data registers holding the data to be read are held one by one. Of the destination registers, open from the reference destination register specified by the extracted start register number. A data acquisition step of acquiring data register numbers from the number of reference destination registers specified by the number of extracted read registers, and acquiring data from the data registers indicated by the numbers of the data registers in the acquired order And a response message generating step for generating the response message in which the acquired data is connected in the order acquired in the data acquiring step.

  According to the above configuration, the reference destination registers have consecutive numbers, and the numbers of the data registers that hold the data to be read can be held one by one. Then, the start register number and the number of read registers are extracted from the data acquisition request received from the external device, and the number of the read register extracted is started from the reference destination register specified by the extracted start register number. The data register numbers can be acquired from the number of reference destination registers specified in (1), and data can be acquired from the data registers indicated by the numbers of the data registers in the acquired order. Furthermore, the response message in which the acquired data is concatenated can be generated in the acquired order, and the generated response message can be transmitted to the external device.

  Therefore, the number of the data register holding the data to be read is registered in the reference destination register in advance in the order in which the data to be read is read out, and the data acquisition request The starting register number to be specified is the number of the data register that holds the data to be read first, and the number of the data register that is registered is the data register number registered in the data reference register. The data to be read can be sequentially read from the register indicated by the designated start register number, and further, the data to be read held in the data register designated by the obtained data register number can be read in the above order.

  Therefore, using a communication protocol that can specify that the data held in each of a plurality of registers that are consecutively arranged from the register specified by the start register number is acquired from an external device, it is discontinuously arranged The data held in each of the plurality of registers can be acquired. That is, using the above communication protocol, data held in each of a plurality of non-sequentially arranged registers can be acquired in one communication session.

  Therefore, since the data held in each of the plurality of data registers arranged discontinuously can be acquired in one communication session, compared with a method that also acquires data that is not the target of reading as a whole, There is an effect that the communication time and the communication amount can be reduced. Compared with a method of acquiring data by multiple communication sessions, headers and footers corresponding to the number of sessions are not required, and communication time and communication volume can be reduced as a whole, thereby reducing communication load. There is an effect that can be.

  Moreover, since data can be acquired in one communication session, there is no time lag between acquired data, and the real-time property of acquired data is not impaired.

  In addition, there is an effect that development for performing communication a plurality of times is not required and development man-hours can be reduced.

  In addition, the number of the data register holding the data to be read is registered in the reference register in advance in the order in which the data to be read is read out, and designated by the data acquisition request. By specifying the number of the reference destination register in which the number of the data register that holds the data to be read first is specified as the start register number, each of the plurality of data registers arranged discontinuously is designated. Since the stored data can be acquired, it is not necessary to develop software based on the text-based data acquisition command prepared for each data. This has the effect of improving the convenience of data acquisition.

  In order to solve the above-described problem, the register control device according to the present invention includes a start register number indicating a register to start writing and a number of write registers indicating the number of registers to be written from a data setting request received from an external device. And one or a plurality of data to be written, and starting from the register specified by the start register number, the write target for each of the number of registers specified by the number of write registers Is a register control device that writes data to be written one by one, holds a number of the data register that stores data to be written one by one, receives a plurality of consecutive reference destination registers, and receives from the external device The start register number, the number of write registers, and the write target Extract one or more data and start from the reference destination register specified by the extracted start register number, and obtain the data register number from the number of reference destination registers specified by the number of extracted write registers And a data setting means for writing the data to be written one by one to the data register indicated by the number of each data register in the acquired order.

  In addition, the register control method according to the present invention includes a start register number indicating a register to start writing, a number of write registers indicating the number of registers to be written, and one or more write targets from a data setting request received from an external device. A plurality of data is extracted, starting from the register specified by the start register number, and writing the data to be written one by one to each of the number of registers specified by the number of write registers A register control method for extracting the start register number, the number of write registers, and one or more data to be written from a data setting request received from the external device, and storing the data to be written Multiple reference destination registers with consecutive numbers that hold data register numbers one by one Data register numbers are acquired from the number of reference destination registers specified by the number of write registers extracted, starting from the reference destination register specified by the extracted start register number, And a data setting step of writing the data to be written one by one to the data register indicated by the number of each data register.

  According to the above configuration, the reference destination registers have consecutive numbers, and the numbers of the data registers that hold the data to be read can be held one by one. Then, the start register number, the number of write registers, and one or more data to be written are extracted from the data setting request received from the external device, and the reference destination register specified by the extracted start register number The data register number is acquired from the number of reference destination registers specified by the number of write registers extracted, and the write is performed on the data register indicated by the number of each data register in the acquired order. The target data can be written one by one.

  Therefore, the number of the data register that stores the data to be written is registered in the reference destination register in advance by the user operation or the like in the order in which the data to be read is written, and the data setting request The start register number to be specified is the number of the reference destination register in which the number of the data register that stores the data to be written first is registered, so that the number of the data register registered in the reference destination register is It is possible to acquire the data to be written one by one in the data register indicated by the number of each data register in the acquired order in order from the register indicated by the designated start register number.

  For this reason, the data stored in each of a plurality of registers arranged consecutively from the register designated by the start register number is arranged non-contiguously using a communication protocol capable of designating setting from an external device. Data can be stored in each of the plurality of registers. That is, using the above communication protocol, data can be set in each of a plurality of non-contiguous registers in one communication session.

  Therefore, since data can be set in each of a plurality of data registers arranged discontinuously in one communication session, compared with a method in which data that is not a write target is also set, as a whole, communication time and There is an effect that the amount of communication can be reduced. Compared with a method of setting data by a plurality of communication sessions, headers and footers corresponding to the number of sessions are not required, and communication time and communication volume can be reduced as a whole, thereby reducing communication load. There is an effect that can be.

  Further, since data can be set in one communication session, there is no time lag between the set data, and the real-time property of the set data is not impaired.

  In addition, there is an effect that development for performing communication a plurality of times is not required and development man-hours can be reduced.

  In addition, the number of the data register that stores the data to be written is registered in the reference register in advance by the user operation or the like in the order of writing the data to be written, and specified by the data setting request. By specifying the number of the reference destination register in which the number of the data register that stores the data to be written first is specified as the start register number, each of the plurality of data registers arranged discontinuously is designated. Since data can be set, it is not necessary to develop software etc. based on text-based data acquisition commands prepared for each data, so development man-hours can be reduced and data acquisition by users There is an effect that convenience increases.

  The register control device may be realized by a computer. In this case, a control program for the register control device that causes the register control device to be realized by the computer by causing the computer to operate as the respective means, and A computer-readable recording medium on which is recorded also falls within the scope of the present invention.

  As described above, the register control device according to the present invention extracts, from the data acquisition request received from the external device, the start register number indicating the register to start reading and the number of read registers indicating the number of registers to be read, A register control device that starts from the register specified by the start register number, acquires data from the number of registers specified by the number of read registers, and transmits a response message including the acquired data to the external device. A plurality of reference destination registers having consecutive numbers, each holding a number of a data register holding data to be read, and the start register number and the reading from the data acquisition request received from the external device The number of registers is extracted, and the reference destination register specified by the extracted start register number is used. Start data acquisition of data register numbers from the number of reference destination registers specified by the number of read registers extracted above, and acquire data from the data registers indicated by the numbers of the data registers in the acquired order And response message generation means for generating the response message in which the acquired data is connected in the order acquired by the data acquisition means.

  The register control method according to the present invention extracts a start register number indicating a register to start reading and a read register number indicating the number of registers to be read from a data acquisition request received from an external device, and the start register A register control method that starts from a register specified by a number, acquires data from the number of registers specified by the number of read registers, and transmits a response message including the acquired data to the external device, The start register number and the number of read registers are extracted from the data acquisition request received from the external device, and the numbers of the data registers holding the data to be read are held one by one. Of the destination registers, open from the reference destination register specified by the extracted start register number. A data acquisition step of acquiring data register numbers from the number of reference destination registers specified by the number of extracted read registers, and acquiring data from the data registers indicated by the numbers of the data registers in the acquired order And a response message generating step for generating the response message in which the acquired data is connected in the order acquired in the data acquiring step.

  Therefore, the number of the data register holding the data to be read is registered in the reference destination register in advance in the order in which the data to be read is read out, and the data acquisition request The starting register number to be specified is the number of the data register that holds the data to be read first, and the number of the data register that is registered is the data register number registered in the data reference register. The data to be read can be sequentially read from the register indicated by the designated start register number, and further the data to be read stored in the data register designated by the obtained data register number can be read in the above order.

  Therefore, using a communication protocol that can specify that the data held in each of a plurality of registers that are consecutively arranged from the register specified by the start register number is acquired from an external device, it is discontinuously arranged The data held in each of the plurality of registers can be acquired. That is, using the above communication protocol, data held in each of a plurality of non-sequentially arranged registers can be acquired in one communication session.

  Therefore, since the data held in each of the plurality of data registers arranged discontinuously can be acquired in one communication session, compared with a method that also acquires data that is not the target of reading as a whole, There is an effect that the communication time and the communication amount can be reduced. Compared with a method of acquiring data by multiple communication sessions, headers and footers corresponding to the number of sessions are not required, and communication time and communication volume can be reduced as a whole, thereby reducing communication load. There is an effect that can be.

  Moreover, since data can be acquired in one communication session, there is no time lag between acquired data, and the real-time property of acquired data is not impaired.

  In addition, there is an effect that development for performing communication a plurality of times is not required and development man-hours can be reduced.

  In addition, the number of the data register holding the data to be read is registered in the reference register in advance in the order in which the data to be read is read out, and designated by the data acquisition request. By specifying the number of the reference destination register in which the number of the data register that holds the data to be read first is specified as the start register number, each of the plurality of data registers arranged discontinuously is designated. Since the stored data can be acquired, it is not necessary to develop software based on the text-based data acquisition command prepared for each data. This has the effect of improving the convenience of data acquisition.

  Further, the register control device according to the present invention, from the data setting request received from the external device, the start register number indicating the register to start writing, the number of write registers indicating the number of registers to be written, and 1 or A plurality of data is extracted, starting from the register specified by the start register number, and writing the data to be written one by one to each of the number of registers specified by the number of write registers A register control device, which holds a number of data registers for storing data to be written one by one, a plurality of reference destination registers having consecutive numbers, and the start register from a data setting request received from the external device A number, the number of write registers, and one or more data to be written Starting from the reference register specified by the extracted start register number, obtaining the data register number from the number of reference destination registers specified by the number of write registers extracted, in the order of acquisition, Data setting means for writing the data to be written one by one to the data register indicated by the number of each data register is provided.

  In addition, the register control method according to the present invention includes a start register number indicating a register to start writing, a number of write registers indicating the number of registers to be written, and one or more write targets from a data setting request received from an external device. A plurality of data is extracted, starting from the register specified by the start register number, and writing the data to be written one by one to each of the number of registers specified by the number of write registers A register control method for extracting the start register number, the number of write registers, and one or more data to be written from a data setting request received from the external device, and storing the data to be written Multiple reference destination registers with consecutive numbers that hold data register numbers one by one Data register numbers are acquired from the number of reference destination registers specified by the number of write registers extracted, starting from the reference destination register specified by the extracted start register number, And a data setting step for writing the data to be written one by one to the data register indicated by the number of each data register.

  Therefore, the number of the data register that stores the data to be written is registered in the reference destination register in advance by the user operation or the like in the order in which the data to be read is written, and the data setting request The start register number to be specified is the number of the reference destination register in which the number of the data register that stores the data to be written first is registered, so that the number of the data register registered in the reference destination register is It is possible to acquire the data to be written one by one in the data register indicated by the number of each data register in the acquired order in order from the register indicated by the designated start register number.

  For this reason, the data stored in each of a plurality of registers arranged consecutively from the register designated by the start register number is arranged non-contiguously using a communication protocol capable of designating setting from an external device. Data can be stored in each of the plurality of registers. That is, using the above communication protocol, data can be set in each of a plurality of non-contiguous registers in one communication session.

  Therefore, since data can be set in each of a plurality of data registers arranged discontinuously in one communication session, compared with a method in which data that is not a write target is also set, as a whole, communication time and There is an effect that the amount of communication can be reduced. Compared with a method of setting data by a plurality of communication sessions, headers and footers corresponding to the number of sessions are not required, and communication time and communication volume can be reduced as a whole, thereby reducing communication load. There is an effect that can be.

  Further, since data can be set in one communication session, there is no time lag between the set data, and the real-time property of the set data is not impaired.

  In addition, there is an effect that development for performing communication a plurality of times is not required and development man-hours can be reduced.

  In addition, the number of the data register that stores the data to be written is registered in the reference register in advance by the user operation or the like in the order of writing the data to be written, and specified by the data setting request. By specifying the number of the reference destination register in which the number of the data register that stores the data to be written first is specified as the start register number, each of the plurality of data registers arranged discontinuously is designated. Since data can be set, it is not necessary to develop software etc. based on text-based data acquisition commands prepared for each data, so development man-hours can be reduced and data acquisition by users There is an effect that convenience increases.

  One embodiment of the present invention is described below with reference to FIGS.

(Overall configuration of data measurement system)
A data measurement system 50 including the register control device 20 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a schematic configuration of a data measurement system 50 including the register control device 20.

  The data measurement system 50 shown in FIG. 1 applies various test input signals to components, circuits, etc., as in a burn-in test apparatus that selects initial defective products by a screening test in the manufacturing process of a semiconductor integrated circuit, for example. The register control device 20 as a data measuring device for measuring various output signals output from the components and circuits, and the data acquisition / setting for acquiring data held by the measuring device and setting data for the measuring device A data measurement system 50 configured with the setting device 10 is conceivable.

  In the example illustrated in FIG. 1, the data measurement system 50 has a configuration in which one register control device 20 and one data acquisition / setting device 10 are communicably connected via a communication interface 60.

  The communication interface 60 is not particularly limited, and is, for example, RS-232C, RS-485, GBIP (IEEE488), or the like.

  The protocol used for communication between the data acquisition / setting device 10 and the register control device 20 is a protocol that allows data reading and writing to a plurality of registers arranged continuously from a certain register by parameters. Assumed. Here, in particular, the MODBUS protocol is assumed. Since the transmission format of the MODBUS protocol and the MODBUS protocol is as described in the background art column, the description is omitted here.

  The register control device 20 stores various data (hereinafter referred to as measurement data) including, for example, measurement values obtained as a result of performing predetermined measurements on various components and circuits to be inspected. It is a device that holds it. The measurement data is not limited to the measurement value obtained as a result of performing the predetermined measurement, and may be data obtained by internal processing.

  Then, the register control device 20 performs processing according to a predetermined request message transmitted from the data acquisition / setting device 10 according to the transmission format of the MODBUS protocol. In this case, the predetermined request message is 1) reading of data held in each of one or a plurality of consecutive registers in the register control device 20, or 2) 1 in the register control device 20 Alternatively, the data included in the predetermined request message is stored in each of a plurality of consecutive registers. Then, after performing processing according to the predetermined request message, the register control device 20 transmits a response message corresponding to the request message according to the transmission format of the MODBUS protocol to the data acquisition / setting device 10. .

  The data acquisition / setting device 10 requests the transmission of one or a plurality of measurement data held by the register in the register control device 20 to transmit the predetermined request message according to the MODBUS protocol transmission format to the register control device. 20 to send. Further, a predetermined response message according to the transmission format of the MODBUS protocol including the measurement data group transmitted from the register control device 20 in response to the request message is received.

  The data acquisition / setting device 10 transmits the predetermined request message according to the transmission format of the MODBUS protocol in order to set one or a plurality of data in the register of the register control device 20.

  Although FIG. 1 shows an example in which one register control device 20 and one data acquisition / setting device 10 are connected, the register control device 20 connected to the data acquisition / setting device 10 The number is not limited to one and may be two or more.

(Register controller configuration)
The configuration of the register control device 20 will be described. The register control device 20 stores the measurement data in a register in its own device, performs processing according to the predetermined request message from the data acquisition / setting device 10, and obtains a response message corresponding to the request message as data acquisition Send to setting device 10 For this purpose, the register control device 20 includes a storage unit 21 and a control unit 24.

  The control unit 24 controls the storage unit 21 and performs predetermined arithmetic processing. The predetermined calculation process includes a process of receiving the predetermined request message from the data acquisition / setting device 10.

  For this purpose, the control unit 24 includes a request message reception unit 25, a register data acquisition unit 26 (data acquisition unit, data setting unit), a data buffer register 261, a buffering data acquisition unit 27 (data acquisition unit), A buffering data editing unit 28 (data setting unit) and a response message transmission unit 29 (response message generation unit) are included. Here, first, the request message receiving unit 25 and the response message transmitting unit 29 will be described. The register data acquiring unit 26, the data buffer register 261, the buffering data acquiring unit 27, and the buffering, which are characteristic components of the present invention. A detailed configuration of the data editing unit 28 will be described later.

  The request message receiving unit 25 receives the predetermined request message from the data acquisition / setting apparatus 10 according to the MODBUS protocol transmission format via the communication interface 60.

  The response message transmission unit 29 transmits a response message corresponding to the received request message to the data acquisition / setting device 10 via the communication interface 60 according to the transmission format of the MODBUS protocol. When the function specified by the request message is data reading, the response message transmission unit 29 acquires the data stored in the data buffer register 261 acquired by the buffering data acquisition unit 27 described later. Are transmitted in a response message in accordance with the transmission format of the MODBUS protocol.

  Next, the storage unit 21 will be described. The storage unit 21 stores various data used by the control unit 24, data obtained by executing a program, and the like, and is realized by a nonvolatile memory such as a RAM, a ROM, or a flash memory. The various data is stored in various storage units inside the storage unit 21.

  Note that the storage unit 21 is not necessarily provided in the register control device 20, and may be configured as an external storage device connected to the register control device 20 in a readable state.

  The storage unit 21 includes a measurement data storage register 22 and a reference destination management register 23 (reference destination register). Here, the measurement data storage register 22 will be described, and the detailed configuration of the reference destination management register 23 which is a characteristic component of the present invention will be described later.

  The measurement data storage register 22 stores one or more measurement data acquired from a measurement unit (not shown) or an external device (not shown), or one or more data included in a request message from the data acquisition / setting device 10. This is a register that is held in a readable state. By specifying the register number of each register, the data held in the specified register can be accessed. In addition, the arrangement of the registers in the measurement data storage register 522 is fixed, and the user cannot arbitrarily change the arrangement of the registers. Also, it is assumed that the register in which the measurement data is stored is fixed and cannot be arbitrarily changed by the user.

(Characteristic configuration of register controller)
Next, characteristic components of the register control device 20 will be described.

(Reference management register)
First, the reference destination management register 23 of the storage unit 21 will be described in detail. The reference destination management register 23 is a register that holds the register number in the measurement data storage register 22 in a readable state. More specifically, it is a register in which the numbers of one or a plurality of arbitrary registers in the measurement data storage register 22 are held one by one, and the numbers are consecutive. The operation of registering the register number in the measurement data storage register 22 in the reference management register 23 is performed by a user operation on the register control device 20 or a predetermined control from an external device.

  Then, the numbers of the plurality of registers (which may be non-consecutive) in the measurement data storage register 22 in which the measurement data that the user wants to acquire are held are displayed from the head of the reference destination management register 23. Register in advance in the order that the user wants to obtain. Then, a register data acquisition unit 26 to be described later refers to both the reference destination management register 23 and the measurement data storage register 22 and acquires only the measurement data to be acquired in the order to be acquired. The above processing of the register data acquisition unit 26 will be described in detail later.

  Alternatively, the numbers of a plurality of registers (which may be non-consecutive) in the measurement data storage register 22 that the user wants to store data are displayed in the order in which the user wants to store the data from the top of the reference destination management register 23 , Register in advance. Then, a register data acquisition unit 26 to be described later refers to both the reference destination management register 23 and the measurement data storage register 22 and stores the data to be stored in the measurement data storage register 22 in the order in which the data is to be stored. The above processing of the register data acquisition unit 26 will be described in detail later.

(Register data acquisition unit, data buffer register, buffering data acquisition unit, buffering data editing unit)
Next, the register data acquisition unit 26, the data buffer register 261, the buffering data acquisition unit 27, and the buffering data editing unit 28 will be described in detail.

  The register data acquisition unit 26 performs processing according to the function specified by the request message received by the request message reception unit 25. That is, according to the value of the Function field of the received request message, 1) a process of reading data held in each of one or a plurality of consecutive registers in the measurement data storage register 22, and 2) measurement data For each storage process of data in each of one or a plurality of consecutive registers in the storage register 22, a process of acquiring measurement data held in the measurement data storage register 22 is performed.

  First, in the data reading process of 1), the register data acquisition unit 26 refers to the measurement data storage register 22 via the reference destination management register 23 and acquires the measurement data held in the measurement data storage register 22. .

  Specifically, the register data obtaining unit 26 first obtains “start number” and “register number” specified in the Data field of the request message received by the request message receiving unit 25. Then, the reference destination management register 23 is referred according to the obtained “start number” and “number of registers”. Specifically, from the register having the value of “start number” as “register number” to the register having “start number + number of registers” as “register number” is sequentially referred to and held in “reference register number” Refers to the number of the registered register. Then, the register data acquisition unit 26 refers to the measurement data storage register 22 using the referenced number as a key, and is held in a register having the referenced number as the “register number” of the measurement data storage register 22. Get “data”. Then, the register data acquisition unit 26 stores the acquired data in the data buffer register 261 in the acquisition order.

  After all the data to be acquired is stored in the data buffer register 261, the register data acquisition unit 26 notifies the buffering data acquisition unit 27 (to be described later) to that effect.

  Next, in the data storage process of 2), similarly to the data read process of 1), the register data acquisition unit 26 refers to the reference destination management register 23 and the measurement data storage register 22, and the measurement data storage register The measurement data held in 22 is acquired. The acquired data is stored in the data buffer register 261 in the order of acquisition. In this case, after all the data to be acquired is stored in the data buffer register 261, the register data acquisition unit 26 notifies the buffering data editing unit 28 of the request and also receives the request received by the request message reception unit 25. Information specifying the data to be stored in the measurement data storage register 22 included in the message is transmitted to the buffering data editing unit 28. Here, the information specifying the data to be stored is “start number”, “number of registers”, and “data 1 to n (stored) specified in the Data field of the request message received by the request message receiving unit 25. Data) ”.

  Next, the data buffer register 261 is a register that holds the data stored in the register data acquisition unit 26 in a readable state. Here, it is assumed that the data buffer register 261 functions as a FIFO (First In First Out) stack capable of reading stored data in the order of storage. By specifying the number of each register, the data held in the specified register can be accessed.

  Next, when receiving the notification from the register data acquisition unit 26, the buffering data acquisition unit 27 reads the data held in the data buffer register 261 in the order in which the data is stored. Then, the buffering data acquisition unit 27 transmits the read data to the response message transmission unit 29. Note that the response message transmission unit 29 connects the read data in the read order in accordance with the transmission format of the MODBUS protocol as described in the background section with reference to FIG. To the data acquisition / setting device 10.

  Next, when receiving the notification from the register data acquisition unit 26, the buffering data editing unit 28 overwrites the data held in the data buffer register 261. Specifically, it is held in the data buffer register 261 using “start number”, “number of registers”, and “data 1 to n (data to be stored)” transmitted from the register data acquisition unit 26. Overwrite the data. That is, the data 1 to n are set to 1 from the register in the data buffer register 261 specified by “start number” to each of the registers in the data buffer register 261 specified by “start number + number of registers”. Overwrite one by one.

  When the overwriting process ends, the buffering data editing unit 28 updates the measurement data storage register 22 with the data in the data buffer register 261 after the overwriting process.

  Thereafter, the buffering data editing unit 28 notifies the response message transmission unit 29 of the completion of processing. The response message transmission unit 29 that has received the notification sends a predetermined response message in accordance with the transmission format of the MODBUS protocol, as described in the background section with reference to FIG. Transmit to the setting device 10.

(Data acquisition / setting device configuration)
Next, the configuration of the data acquisition / setting apparatus 10 will be described. The data acquisition / setting device 10 transmits the predetermined request message according to the transmission format of the MODBUS protocol to the register control device 20. Then, a response message according to the MODBUS protocol transmission format for the request message is received from the register control device 20.

  In order to perform the above processing, the data acquisition / setting device 10 includes a storage unit 11, a display processing unit 12, a request message transmission unit 13, a response message reception unit 14, and a data storage unit 15.

  The storage unit 11 stores various data or measurement data included in the response message received from the register control device 20. It is realized by a non-volatile memory such as a RAM (Random Access Memory), a ROM (Read-Only Memory), or a flash memory.

  The display processing unit 12 performs various processes such as reading out data stored in the storage unit 11 and displaying the data on a display unit (not shown) or generating the predetermined request message and transmitting it to the request message transmission unit 13. Do.

  The request message transmission unit 13 transmits the request message transmitted from the display processing unit 12 to the register control device 20 via the communication interface 60.

  The response message receiving unit 14 receives the response message transmitted from the register control device 20 via the communication interface 60.

  The data storage unit 15 stores the measurement data included in the response message received by the response message reception unit 14 in the storage unit 11.

(Specific configuration example of measurement data storage register, reference destination management register, and data buffer register)
Next, specific configuration examples of the measurement data storage register 22, the reference destination management register 23, and the data buffer register 261 will be described with reference to FIGS. 2A to 2D are schematic views showing specific configuration examples of the measurement data storage register 22, the reference destination management register 23, and the data buffer register 261, respectively.

  In the example shown in FIG. 2A, the measurement data storage register 22 has seven registers, and each of the registers “R01 to R07” holds data A to G indicated by “data”. ing. In the example shown in FIG. 2B, the reference destination management register 23 has six registers, and each of the registers R11 to R16 has a “register number” indicated by “reference destination register number”. Register numbers in the storage register 22 are registered.

  Here, the user performs measurement held in the discontinuous register designated by “R02”, “R03”, “R05”, and “R01” in the measurement data storage register 22 shown in FIG. Suppose that we want to acquire data in this order. At this time, as shown in FIG. 2B, the user sets “R02”, “R03”, “R05”, and “R01” as R11 to R14 as the register numbers in the measurement data storage register 22. Register each in the specified register. In this example, (null) is displayed to indicate that nothing is registered in the registers specified by R15 and R16.

  A request message is transmitted from the data acquisition / setting device 10 with the reference destination management register created in advance as described above. For example, when data B (held in the register number R03 of the measurement data storage register 22) and data C (held in the register number R03 of the measurement data storage register 22) are read in this order in a cycle of 1 second. “Start number” and “Number of registers” specified in the Data field of the request message transmitted from the data acquisition / setting device 10 at a cycle of 1 second are specified as “R11” and “2”, respectively. As a result, the register data acquisition unit 26 refers to the register in which the reference destination management register 23 number is designated by R11 and R12, and obtains the register numbers R02 and R03 of the measurement data storage register 22, respectively. The registers specified by the register numbers R02 and R03 of the measurement data storage register 22 are referred to in this order, and as a result, the data B and the data C can be read in this order.

  Then, the register data acquisition unit 26 stores the acquired data B and data C in the data buffer register 261 in the acquired order, and the data buffer register 261 after the storage is shown in FIG. It becomes as follows.

  Further, for example, in the 1 minute cycle, the data E (held in the register number R05 of the measurement data storage register 22) and the data A (held in the register number R01 of the measurement data storage register 22) are further converted into the data When it is desired to read data in this order after B and data C, the “start number” and “number of registers” specified in the Data field of the request message transmitted from the data acquisition / setting device 10 at a cycle of 1 minute are respectively “R11”. "And" 4 ". As a result, the register data acquisition unit 26 refers to the register whose reference destination management register 23 is designated by R11 to R14, and obtains the register numbers R02, R03, R05, and R01 of the measurement data storage register 22, respectively. . Then, the register numbers R02, R03, R05, and R01 of the measurement data storage register 22 are referred to in this order, and as a result, the data B, data C, data E, and data A can be read in this order.

  The register data acquisition unit 26 stores the acquired data B, data C, data E, and data A in the data buffer register 261 in the acquired order. As shown in FIG.

  In both the measurement data storage register 22 and the reference destination management register 23, what designates a register may be an address position in the memory of the register instead of a register number.

(Processing flow in the data measurement system)
Next, a processing flow in the register control device 20 will be described with reference to FIGS. 3 and 4.

  First, FIG. 3 is a flowchart showing a flow of processing (data acquisition step, response message generation step) in which the register control device 20 transmits measurement data held by its own device in response to a request from the data acquisition / setting device 10. is there.

  First, the “start number” and the “number of registers” specified in the Data field of the request message according to the transmission format of the MODBUS protocol from the data acquisition / setting device 10 received by the request message receiving unit 25 of the register control device 20. Is obtained (step S101).

  Then, in the reference destination management register 23, the “reference destination register number” in the register between the register having the value of “start number” as “register number” and the register having “start number + number of registers” as “register number” "Is not null (YES in step S102), data acquisition processing is started.

  In the data acquisition process, first, the value of the control value (Cnt) for controlling the processing loop is set to “0” by internal processing (step S103), and then the register data acquisition unit 26 performs reference destination management. In the register 23, the “reference destination register number” number of the register having “start number + Cnt” as the “register number” is referred to (step S104). Subsequently, the register data acquisition unit 26 acquires the “data” value of the register having the acquired number as the “register number” in the measurement data storage register 22 and stores it in the data buffer register 261 (step S105). Then, the control value (Cnt) is increased by 1 (step S106). If the value of Cnt is smaller than “the number of registers” (YES in step S107), steps S104 to S106 are performed, and the register data acquisition unit 26 repeats data acquisition.

  If the value of Cnt is greater than or equal to the “number of registers” (NO in step S107), buffering data acquisition unit 27 reads the data held in data buffer register 261 (step S108). Then, the response message transmission unit 29 transmits the read data included in the response message to the request message in a state of being connected in the read order (step S109).

  In the reference destination management register 23, the “reference destination register number” in the register between the register having the value of “start number” as “register number” and the register having “start number + number of registers” as “register number”. "Is null (NO in step S102), a predetermined error process is performed (step S120), and the process is stopped.

  Next, FIG. 4 is a flowchart showing a flow of processing (data setting step) in which the register control device 20 stores the data transmitted from the data acquisition / setting device 10 in its own device. Steps S101 to S107 are the same as the processing flow described with reference to FIG. 3, and thus the description thereof is omitted here.

  If the value of Cnt is equal to or greater than “the number of registers” (NO in step S107), the buffering data editing unit 28 starts from the register in the data buffer register 261 specified by “start number” with “start number + number of registers”. The data 1 to n specified in the received request message are overwritten one by one in each of the registers in the data buffer register 261 specified in step S208.

  Thereafter, the buffering data editing unit 28 updates the measurement data storage register 22 with the data in the data buffer register 261 after the overwriting process (step S209). Then, the response message transmission unit 29 transmits a response message for the request message (step S210).

(Additional notes)
The control unit 24 of the register control device 20 may be realized by software using a CPU or may be configured by hardware logic. When realized by software, the register control device 20 includes a CPU that executes instructions of a control program that realizes each function, a ROM that stores the program, a RAM that expands the program, a memory that stores the program and various data. And a storage device (recording medium). An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the register control device 20 which is software for realizing the functions described above is recorded in a computer-readable manner. This can also be achieved by supplying the data to the register control device 20 and reading and executing the program code recorded on the recording medium by a computer (or CPU or MPU) in the register control device 20.

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  The register control device 20 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited, and for example, an infrared ray such as IrDA, Bluetooth (Bluetooth) (IEEE1394 cable, USB cable, power line carrier, cable TV line, telephone line, ADSL line, etc.) (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be suitably used for a register control device that can transmit data held in each of a plurality of registers to an external device.

It is a block diagram which shows schematic structure of the data measurement system which concerns on embodiment of this invention. FIG. 2A is a schematic diagram illustrating a configuration example of a measurement data storage register provided in the register control device in the data measurement system illustrated in FIG. FIG. 2B is a schematic diagram illustrating a configuration example of a reference destination management register provided in the register control device in the data measurement system illustrated in FIG. FIG. 2C is a schematic diagram showing a configuration example of the data buffer register provided in the register control device in the data measurement system shown in FIG. FIG. 2D is a schematic diagram illustrating another configuration example of the data buffer register provided in the register control device in the data measurement system illustrated in FIG. 2 is a flowchart showing a flow of processing in which a register control device in the data measurement system shown in FIG. 1 transmits measurement data held by its own device in response to a request from a data acquisition / setting device. It is a flowchart which shows the flow of the process in which the register control apparatus in the data measurement system shown in FIG. 1 stores the data transmitted from the data acquisition / setting apparatus in its own apparatus. It is a block diagram which shows schematic structure of an example of the conventional data measurement system. It is explanatory drawing which shows the frame structure of the request message and response message of a MODBUS protocol. FIG. 7A is an explanatory diagram illustrating a configuration example of a request message of the MODBUS protocol for reading data held in each of a plurality of consecutive registers. FIG. 7B is an explanatory diagram illustrating a configuration example of a response message with respect to the request message illustrated in FIG. FIG. 7C is an explanatory diagram showing a configuration example of a request message of the MODBUS protocol for storing data in each of a plurality of consecutive registers. FIG. 7D is an explanatory diagram showing a configuration example of a response message for the request message shown in FIG.

Explanation of symbols

20 register controller 22 measurement data storage register 23 reference destination management register (reference destination register)
25 Request message reception unit 26 Register data acquisition unit (data acquisition unit, data setting unit)
27 Buffering data acquisition unit (data acquisition means)
28 Buffering data editing section (data setting means)
29 Response message transmitter (response message generating means)
50 Data Measurement System 261 Data Buffer Register

Claims (6)

From the data acquisition request received from the external device, extract the start register number indicating the register to start reading and the number of read registers indicating the number of registers to be read, starting from the register specified by the start register number, A register control device that acquires data from a number of registers specified by the number of read registers, and transmits a response message including the acquired data to the external device,
A plurality of reference destination registers having consecutive numbers, each holding a number of data registers that hold data to be read one by one;
Extract the start register number and the number of read registers from the data acquisition request received from the external device, and start with the reference destination register specified by the extracted start register number, and specify by the extracted number of read registers Data acquisition means for acquiring the number of the data register from the number of reference destination registers, and acquiring data from the data register indicated by the number of each data register in the acquired order;
And a response message generating unit configured to generate the response message in which the acquired data is connected in the order acquired by the data acquiring unit. From the data setting request received from the external device, a start register number indicating a register to start writing, the number of write registers indicating the number of registers to be written, and one or a plurality of data to be written are extracted, and the start register A register control device that starts from a register designated by a number and writes the data to be written one by one to each of the number of registers designated by the number of write registers,
A plurality of reference destination registers having consecutive numbers, each holding one data register number for storing data to be written, and
The start register number, the number of write registers, and one or more data to be written are extracted from the data setting request received from the external device, and start from the reference destination register specified by the extracted start register number Then, the data register number is acquired from the number of reference destination registers specified by the number of the extracted write registers, and the data register indicated by each data register number in the acquired order is set as the write target. And a data setting means for writing data one by one. From the data acquisition request received from the external device, extract the start register number indicating the register to start reading and the number of read registers indicating the number of registers to be read, starting from the register specified by the start register number, A register control method for acquiring data from a number of registers specified by the number of read registers and transmitting a response message including the acquired data to the external device,
The start register number and the number of read registers are extracted from the data acquisition request received from the external device, and the numbers of the data registers holding the data to be read are held one by one. Starting from the reference destination register specified by the extracted start register number among the destination registers, the number of the data register is acquired from the number of reference destination registers specified by the number of the read register extracted, and the acquired In order, a data acquisition step of acquiring data from the data register indicated by the number of each data register;
And a response message generating step for generating the response message in which the acquired data is concatenated in the order acquired in the data acquiring step. From the data setting request received from the external device, a start register number indicating a register to start writing, the number of write registers indicating the number of registers to be written, and one or a plurality of data to be written are extracted, and the start register A register control method that starts from a register designated by a number and writes the data to be written one by one to each of the number of registers designated by the number of write registers,
The start register number, the number of write registers, and one or more data to be written are extracted from the data setting request received from the external device, and the number of the data register that stores the data to be written is one. From the reference destination registers specified by the extracted start register number, from the reference destination registers specified by the extracted start register number, from among the plurality of reference destination registers having consecutive numbers, A data setting step of acquiring data register numbers and writing the data to be written one by one to the data register indicated by the number of each data register in the acquired order Control method.   A register control program for causing a computer to function as the register control device according to claim 1, wherein the computer functions as each means described above.   A computer-readable recording medium on which the program according to claim 5 is recorded.

Images