Testing device of auxiliary controller

Abstract

The utility model discloses a testing device for an auxiliary controller. The testing device comprises an upper computer, a programmable power supply, a PLC (Programmable Logic Controller) and an acquisition card, the upper computer is respectively connected with the programmable power supply, the PLC and the acquisition card, and the programmable power supply is connected with a power supply interface of the auxiliary controller and provides power supply with a preset voltage value for the auxiliary controller; the PLC controller is respectively connected with a relay output interface, a switching value acquisition interface, an analog quantity acquisition interface, an analog quantity output interface, a voltage output interface and a DI interface of the auxiliary controller; and the acquisition card is connected with the PWM output interface of the auxiliary controller. According to the technical scheme of the utility model, effective, systematic and targeted testing of different interface functions of the auxiliary controller is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit testing, in particular to a testing device for an auxiliary controller. Background Art

[0002] Currently, there is no device for performing functional testing on the interface of an auxiliary controller (such as SIBCOS-M2500-0-0), and it is impossible to perform effective, systematic and targeted testing on the auxiliary controller. Utility Model Content

[0003] In view of the above problems, the utility model provides a testing device for an auxiliary controller, which is connected to a programmable power supply, a PLC controller and an acquisition card through a host computer, and is respectively connected to different interfaces of the auxiliary controller, thereby realizing effective, systematic and targeted testing of the functions of different interfaces of the auxiliary controller.

[0004] To achieve the above object, the utility model provides a test device for an auxiliary controller, comprising: a host computer, a program-controlled power supply, a PLC controller and an acquisition card;

[0005] The host computer is connected to the program-controlled power supply, the PLC controller and the acquisition card respectively, and the program-controlled power supply is connected to the power supply interface of the auxiliary controller to provide the auxiliary controller with a power supply of a preset voltage value;

[0006] The PLC controller is respectively connected to the relay output interface, the switch quantity acquisition interface, the analog quantity acquisition interface, the analog quantity output interface, the voltage output interface and the DI interface of the auxiliary controller;

[0007] The acquisition card is connected to the PWM output interface of the auxiliary controller.

[0008] In the above technical solution, preferably, the host computer is connected to the programmable power supply via an RS485 interface, and the programmable power supply is connected to the power supply interface of the auxiliary controller via a control relay.

[0009] In the above technical solution, preferably, the DI interface of the PLC controller is connected to the relay output interface of the auxiliary controller through an isolation relay.

[0010] In the above technical solution, preferably, the AO interface of the AO module in the PLC controller is connected to the DC voltage interface of the auxiliary controller through an isolation module, so that the DC voltage signal of the analog output of the AO module can be output to the auxiliary controller under the isolation protection of the isolation module.

[0011] In the above technical solution, preferably, the AI ​​interface of the PLC controller is respectively connected to DC voltage transmitters of different voltage values, and the DC voltage transmitter is connected to the analog quantity acquisition interface of the auxiliary controller, so as to collect the output voltage signal of the auxiliary controller and transmit it to the PLC controller after the signal is converted by the DC voltage transmitter, so as to calculate and judge whether the output voltage of the auxiliary controller is within a preset normal range.

[0012] In the above technical solution, preferably, the DO interface of the PLC controller is connected to a fixed resistor through a control relay, the fixed resistor is connected to the switch quantity acquisition interface of the auxiliary controller, and the control relay switches the fixed resistor to simulate different temperature signals of the thermistor.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by connecting the host computer with the programmable power supply, PLC controller and acquisition card, and respectively connecting with different interfaces of the auxiliary controller, effective, systematic and targeted testing of different interface functions of the auxiliary controller is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the structure of a testing device for an auxiliary controller disclosed in an embodiment of the present invention.

[0015] In the figure, the corresponding relationship between each component and the reference numeral is as follows:

[0016] 1. Host computer, 2. Programmable power supply, 3. PLC controller, 4. Acquisition card. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0019] like Figure 1 As shown, a test device for an auxiliary controller provided by the utility model includes: a host computer 1, a program-controlled power supply 2, a PLC controller 3 and an acquisition card 4;

[0020] The host computer 1 is connected to the program-controlled power supply 2, the PLC controller 3 and the acquisition card 4 respectively, and the program-controlled power supply 2 is connected to the power supply interface of the auxiliary controller to provide the auxiliary controller with a power supply of a preset voltage value;

[0021] The PLC controller 3 is connected to the relay output interface, switch quantity acquisition interface, analog quantity acquisition interface, analog quantity output interface, voltage output interface and DI interface of the auxiliary controller respectively;

[0022] The acquisition card 4 is connected to the PWM output interface of the auxiliary controller.

[0023] In this embodiment, the host computer 1 is connected to the programmable power supply 2, the PLC controller 3 and the acquisition card 4, and respectively connected to different interfaces of the auxiliary controller, thereby achieving effective, systematic and targeted testing of different interface functions of the auxiliary controller.

[0024] Specifically, the host computer 1 adopts an industrial computer as the core of the entire test device. The industrial computer part is mainly used for human-computer interaction, execution of operation procedures, determination of data, recording of data results, generation of reports and printing.

[0025] The PLC controller 3 interacts with the industrial computer through TCP communication, and mainly performs communication processing, data conversion, data analysis and calculation, and execution of operation logic.

[0026] The acquisition card 4 acquires the waveform output by the controller and processes the waveform through the host computer 1 .

[0027] In the above implementation, preferably, the host computer 1 is connected to the program-controlled power supply 2 via an RS485 interface, and the program-controlled power supply 2 is connected to the power supply interface of the auxiliary controller via a control relay.

[0028] In this embodiment, the upper computer 1 controls the programmable power supply 2 to change the power supply voltage of the auxiliary controller, such as a voltage within the range of 77V-133V, to verify the working condition of the auxiliary controller at the rated working voltage.

[0029] In the above implementation, preferably, the DI interface of the PLC controller 3 is connected to the relay output interface of the auxiliary controller through an isolation relay.

[0030] In the above embodiment, preferably, the AO interface of the AO module in the PLC controller 3 is connected to the DC voltage interface of the auxiliary controller through an isolation module, so that the DC voltage signal of the analog output of the AO module can be output to the auxiliary controller under the isolation protection of the isolation module.

[0031] In the above embodiment, preferably, the AI ​​interface of the PLC controller 3 is respectively connected to DC voltage transmitters of different voltage values, and the DC voltage transmitter is connected to the analog quantity acquisition interface of the auxiliary controller, so as to collect the output voltage signal of the auxiliary controller and transmit it to the PLC controller 3 after the signal is converted by the DC voltage transmitter, so as to calculate and judge whether the output voltage of the auxiliary controller is within the preset normal range.

[0032] During the implementation process, the DC voltage transmitter can use 24V and 50V, and adjust whether to collect voltage signals for the auxiliary controller by controlling the relay.

[0033] In the above implementation, preferably, the DO interface of the PLC controller 3 is connected to the fixed resistor through a control relay, the fixed resistor is connected to the switch quantity acquisition interface of the auxiliary controller, and the control relay switches the fixed resistor to simulate different temperature signals of the thermistor. During the implementation, the corresponding monitoring value in the monitoring software of the auxiliary controller is used to test whether the temperature monitoring value of the auxiliary controller is within the valid range.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test device for an auxiliary controller, characterized in that: include: Host computer, program-controlled power supply, PLC controller and acquisition card; The host computer is connected to the program-controlled power supply, the PLC controller and the acquisition card respectively, and the program-controlled power supply is connected to the power supply interface of the auxiliary controller to provide the auxiliary controller with a power supply of a preset voltage value; The PLC controller is respectively connected to the relay output interface, the switch quantity acquisition interface, the analog quantity acquisition interface, the analog quantity output interface, the voltage output interface and the DI interface of the auxiliary controller; The acquisition card is connected to the PWM output interface of the auxiliary controller.

2. The test device for the auxiliary controller according to claim 1, characterized in that: The host computer is connected to the program-controlled power supply via an RS485 interface, and the program-controlled power supply is connected to a power supply interface of the auxiliary controller via a control relay.

3. The test device for the auxiliary controller according to claim 1, characterized in that: The DI interface of the PLC controller is connected to the relay output interface of the auxiliary controller through an isolation relay.

4. The test device for the auxiliary controller according to claim 1, characterized in that: The AO interface of the AO module in the PLC controller is connected to the DC voltage interface of the auxiliary controller through the isolation module, so that the DC voltage signal of the analog output of the AO module can be output to the auxiliary controller under the isolation protection of the isolation module.

5. The test device for the auxiliary controller according to claim 1, characterized in that: The AI ​​interface of the PLC controller is respectively connected to DC voltage transmitters with different voltage values, and the DC voltage transmitter is connected to the analog quantity acquisition interface of the auxiliary controller, so as to collect the output voltage signal of the auxiliary controller and transmit it to the PLC controller after the signal is converted by the DC voltage transmitter, so as to calculate and determine whether the output voltage of the auxiliary controller is within a preset normal range.

6. The test device for the auxiliary controller according to claim 1, characterized in that: The DO interface of the PLC controller is connected to a fixed value resistor through a control relay, and the fixed value resistor is connected to the switch quantity acquisition interface of the auxiliary controller. The control relay switches the fixed value resistor to simulate different temperature signals of the thermistor.

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