JPH02243039A - Test controller - Google Patents

Abstract

PURPOSE:To obtain the result of test with one control instruction by outputting a test control instruction from a master equipment via a data bus to a receiver side slave equipment in slave equipments applying transmission reception control so as to allow the slave equipment to execute the test. CONSTITUTION:A master equipment 10 generates a test control instruction with an information processing means 12 according to an input data 50 and sends the instruction to a slave equipment 202 at a receiver side applying transmission/reception test via a communication means 30 and a data bus 30. The equipment 202 analyzes a data from the test control instruction through a communication means 212 and an information processing means 222 and starts the extraction of a test frame from a data insertion extraction means 232. Then the equipment 202 sends test start enable information to a slave equipment 201 at a data sender side represented by a test destination identifier added to the control instruction. Thus, the equipment 201 inserts a test data to the data in succession to a start data to the means 231. The equipment 202 extracts the test data till a termination data is recognized and informs the result of test to the master equipment 10 after the end of test.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to a test control device between a main device and a plurality of slave devices. In particular, it relates to a test control method in which a transmission/reception test is performed between slave devices based on a test control command from a main device.

〔overview〕

The present invention provides a test control device in which a main device and a plurality of slave devices are connected via the same bus, and a test control command is sent from the main device to the slave device on the receiving side that performs a transmission/reception test. After the test preparation is completed, the device sends a test start notification to the sending slave device and executes slave device 2OA, thereby sending one test control command from the main device to the slave device.
Test results can be obtained by sending the test data twice, and the load on the main device can be reduced during test execution.

[Conventional technology]

FIG. 3 is a block diagram of a conventional test control device.

Conventionally, a test control device has a main device 10 as shown in FIG.
Communication using control information is performed between A and the slave devices 2OA+ and 20A2, but no communication is performed between the slave devices 2OA, and the slave device cannot recognize the status of other slave devices. For this reason, when executing a test, the main device 10A sends a test control command to the two slave devices 2OAI and 20A2 to be tested through the communication means 21A corresponding to the slave devices 2OA, and prepares for the test based on the response from each slave device 2OA. Slave device 2OA that executes the test after confirming completion
The test was to be executed by notifying the test start command again to the test.

[Problem that the invention seeks to solve]

However, in such conventional test control devices, the status of the other slave device being tested is not known between the slave devices, so the master device confirms the status of the two slave devices being tested through communication between the master device and the slave device. After that, the main device sends a test start command to the slave device.In order to start the test, the main device sends a control command to the two slave devices twice for one test using the communication means corresponding to each slave device. Otherwise, test results would not be obtained and the load on the main device would increase when testing was performed.

The present invention solves the above-mentioned drawbacks, and provides a test control device that can obtain test results by sending a test control command from the main device to the slave device once, and can reduce the load on the main device during test execution. The purpose is to

[Means for solving problems]

The present invention includes a main device and a plurality of slave devices, the main device includes a first information processing means for analyzing input data and creating a test control command, and each of the slave devices is configured to perform the test. In a test control device that includes a second information processing means that analyzes control commands, controls transmission/reception tests between applicable slave devices, and creates test results, data connected to the main device and each of the slave devices, respectively. each of the main device and each of the slave devices includes communication means for mutually transferring data between the first information processing device and the second information processing device via the data bus; The first information processing means includes means for creating a test control command addressed to a slave device on the receiving side that performs a transmission/reception test and providing it to the communication means of the own device, and the second information processing means each includes a means for creating a test control command addressed to the slave device on the receiving side that performs a transmission/reception test, and providing it to the communication means of the own device. A means for providing test start enable information addressed to a slave device on the transmitting side that performs a transmit/receive test after completion of test preparation based on a test control command to a communication means of the own device, and a means for transmitting/receiving test based on the test start enable information addressed to the own device. It is characterized in that it includes means for performing control, and means for providing the test results addressed to the main device to the communication means of its own device.

[Effect]

A data bus is provided which is connected to the master device and each slave device. The communication means of the main device and each slave device respectively transfer data between the first information processing device and the second information processing device via the data bus. The first information processing means creates a test control command addressed to a slave device on the receiving side that performs a transmission/reception test, and sends it to the communication means of its own device. Each of the second information processing means provides the communication means of the own device with test start enable information addressed to the slave device on the sending side that performs the transmission/reception test after completion of test preparation based on the test control command addressed to the own device; The transmitter/receiver test is controlled based on the test start enable information of the destination, and after the test is completed, the test result is provided to the communication means of the own device. Through the above-described operation, a test result can be obtained by sending a test control command from the main device to the slave device once, and the load on the main device can be reduced during test execution.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. 1st
The figure is a block diagram of a test control device according to an embodiment of the present invention. In FIG. 1, the test control device includes a main device 10,
The main device 10 is equipped with slave devices 208 and 202 of praise, and the main device 10 is
Each slave device 203.20□ includes an external data input means 11 that receives input data 50 from the outside, and an information processing means 12 as a first information processing means that analyzes this input data 50 and creates a test control command. Information processing means 22. are respectively used as second information processing means for analyzing the test control command, controlling transmission/reception tests between the corresponding slave devices, and creating test results. , 22. are connected via a data line 40 to the information processing means 22. , 22□, the data insertion/extraction means 23. performs insertion/extraction of transmission/reception test data between slave devices based on the control of . ．． 23. including.

Here, the present invention is characterized by the main device 10 and each slave device 20. ．． 20. The main device 10 and each slave device 201.20 each have a data bus 30 connected to
□ is connected to the information processing means 1 via the data bus 30, respectively.
2 and the information processing means 228.222, communication means 13.21. ．． 212, the information processing means 12 includes means for creating a test control command addressed to a slave device on the receiving side that performs a transmission/reception test, and providing it to the communication means 13 of its own device, and the information processing means 22□, 222 each include: Means for providing test start enable information addressed to a slave device on the sending side that performs a transmission/reception test after completion of test preparation based on a test control command addressed to the own device to the communication means 212, 212 of the own device, and test start enable information addressed to the own device; A means for controlling the transmission/reception test based on the information, and a means for transmitting the test results to the main device 10 to the communication means 21 of the own device.
+, 21°.

The operation of the test control device having such a configuration will be explained. FIG. 2 shows the format of a test control command for the test control device of the present invention.

In FIG. 1, in the main device 10, external data input means 1
1 notifies the information processing means 12 of input data 50 received from the outside. The information processing means 12 creates a test control command from the input data 50 notified from the external data input means 11, and sends the test control command via the communication means 13 to the slave device 202, which is the receiving side, which performs the transmission/reception test via the data bus 30. Send test control commands.

In the slave device 202, the main device
The information processing means 222 analyzes the data, and the data insertion and extraction means 232
Start extracting test frames from . The slave device 202 is
After the start of test frame extraction, the slave device 20 on the data transmitting side indicated by the test light identifier added to the test control command of the main device IO. The communication means 212 sends test start enable information to the data bus 30 by the communication means 212. The slave device 202 transmits the test start permission information to the communication means 21. The slave device 201 receives information via the information processing means 22. The received data is analyzed, and the data insertion/extraction means 6 starts inserting test data following the start data, inserts prescribed end data, and ends the data transmission.

In the slave device 202, after the information processing means 222 detects the test start data, the slave device 2 extracts test data until the end data is recognized, and creates a test result after the test is completed.
The test results created by the information processing means 222 of the slave device 202 are notified to the main device 10 via the communication means 212 of the slave device 202 and the data bus 30.

FIG. 2 shows the format of the test control command on the data bus 30, and each device uses the destination identifier 101 to detect whether the data is addressed to itself or not. Therefore, the communication means 21 of the main device 10 and the slave devices 20, , 202. ．． The same one can be used for 21□.

〔Effect of the invention〕

As explained above, the present invention is an excellent method that can obtain a test result by sending a control command once to a receiving side slave device that performs a transmission/reception test between slave devices, and can reduce the load on the test execution master device. effective.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a test control device according to an embodiment of the present invention. FIG. 2 shows the format of the test control command of the test control device according to the embodiment of the present invention. FIG. 3 is a block diagram of a conventional test control device. 10, IOA...Main device, 11...External data input means, 12.12A, 22+, 22AI, 22
□, 22A2... information processing means, 13.13A+,
13Aa, 21+, 21A+, 21□, 21A
2...Communication means, 2(L, 2OAI, 20□, 2
0A2...Slave device, 30...Data bus, 40.6
0. ．． 60□...Data line, 50...Input data,
101... Destination identifier, 102... Mode, 10
3... Parameter. Bi

Claims (1)

[Claims] 1. A main device and a plurality of slave devices, the main device including a first information processing means for analyzing input data and creating a test control command, and each of the slave devices Each test control device includes a second information processing means that analyzes the test control command, controls transmission/reception tests between the corresponding slave devices, and creates test results, and is connected to the main device and each of the slave devices, respectively. a data bus, and each of the main device and each slave device includes communication means for mutually transferring data between the first information processing means and the second information processing means via the data bus. , the first information processing means includes means for creating a test control command addressed to a slave device on the receiving side that performs a transmission/reception test, and providing it to the communication means of the own device; A means for providing test start enable information addressed to a slave device on a transmitting side that performs a transmission/reception test after completion of test preparation based on a test control command addressed to the device to a communication means of the own device; A test control device comprising: means for controlling a transmission/reception test; and means for providing test results addressed to the main device to a communication means of the own device.