CN215449972U - PLC switch board fault diagnosis system - Google Patents
PLC switch board fault diagnosis system Download PDFInfo
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- CN215449972U CN215449972U CN202120598878.5U CN202120598878U CN215449972U CN 215449972 U CN215449972 U CN 215449972U CN 202120598878 U CN202120598878 U CN 202120598878U CN 215449972 U CN215449972 U CN 215449972U
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 10
- 238000013024 troubleshooting Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
A PLC control cabinet fault diagnosis system comprises a fault processing comparison module, a data acquisition module, a display module and a standard data module; display module and standard data module all are connected to the fault handling and compare the module on, and the fault handling is connected to the one end of data acquisition module and is compared the module, and the other end is connected the PLC switch board. The utility model does not need to record video in the transmission process in the starting or other dynamic processes, and the device automatically records all I/O in the starting process, forms change record and compares with the standard I/O column to obtain abnormal I/O for troubleshooting.
Description
Technical Field
The utility model belongs to the technical field of fault diagnosis of a PLC (programmable logic controller) control cabinet, and particularly relates to a fault diagnosis system of the PLC control cabinet.
Background
The PLC control cabinet is a control cabinet provided with a Programmable Logic Controller (PLC) and related equipment such as a relay, an air switch, a contactor, a power supply and the like. The device can complete the automation of equipment and the automation control of the process, has the advantages of stable performance, low cost, strong anti-interference capability and the like, is the core soul of modern industry, and has wide application in the fields of constant-pressure water supply, air compressors, industrial and agricultural production control and the like.
The original troubleshooting means are as follows: the system faults of the PLC control cabinet are divided into external equipment faults, equipment faults in the PLC control cabinet and controlled equipment faults, such as state feedback abnormity, contactor faults and the like; and controlling the internal faults of the cabinet, such as PLC faults, I/O relay faults and outlet contactor faults. The existing troubleshooting means is to compare a drawing, check the state of an I/O relay, judge whether the state of an external controlled device is abnormal or restart a system, record all devices in a PLC control cabinet in the whole starting (or running) process, and check the on-off states of a PLC I/O point indicator light and the relay in the whole process, wherein if the controlled device has analog I/O, the video recording method does not help troubleshooting greatly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a PLC control cabinet fault diagnosis system to solve the problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a PLC control cabinet fault diagnosis system comprises a fault processing comparison module, a data acquisition module, a display module and a standard data module; display module and standard data module all are connected to the fault handling and compare the module on, and the fault handling is connected to the one end of data acquisition module and is compared the module, and the other end is connected the PLC switch board.
Furthermore, the data acquisition module is a PLC online interface and is used for reading PLC input and output signals and internal data.
Furthermore, the fault processing comparison module is a comparator and is used for comparing the data collected by the PLC online interface with the standard data module.
Furthermore, the standard data module is written for a user and comprises an I/O table of the fault-free PLC and internal logic touch point information.
Furthermore, the fault processing comparison module is also connected with a PLC data Chinese annotation module which comprises the I/O of the PLC and the Chinese name of the internal logic coil.
Further, the display module is a display screen.
Compared with the prior art, the utility model has the following technical effects:
the fault diagnosis device reads PLC I/O and internal logic contact information according to the current system running state, compares the PLC I/O and the internal logic contact information with pre-programmed standard data, and displays original number data, the standard data and comparison result data; during starting or other processes, the PLC I/O and internal logic contact change data are recorded according to the time sequence, compared with the pre-programmed standard data, the internal standard I/O is compared with the read real-time I/O according to the stage where the system operates, and the three types of information of the data, the standard data and the comparison result read according to the time sequence are displayed for common fault analysis and use. Because the I/O actual name is arranged in the fault diagnosis device, the I/O name does not need to be checked with a drawing, and time and labor are saved. The starting or other dynamic processes do not need video recording in the transmission process, the device automatically records all I/O in the starting process, changes are formed and compared with the standard I/O column to obtain abnormal I/O for troubleshooting.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
a PLC control cabinet fault diagnosis system comprises a fault processing comparison module, a data acquisition module, a display module and a standard data module; display module and standard data module all are connected to the fault handling and compare the module on, and the fault handling is connected to the one end of data acquisition module and is compared the module, and the other end is connected the PLC switch board. Fault diagnosis, including PLC on-line interface, for reading PLC input and output signals and internal program data; the standard data is compiled by a user and comprises an I/O table of a normal PLC and internal logic touch point information; and the fault processing comparison module reads the PLC online program and the standard data information, compares the information and displays a comparison result.
The PLC data Chinese annotation system in the fault diagnosis device comprises PLC I/O and Chinese names of internal logic coils, and the fault analysis result display not only comprises English original names of PLC I/O points, but also comprises Chinese annotations, so that fault detection personnel can quickly locate faults.
Static fault
When the PLC control cabinet is not started (operated), the PLC cabinet reports faults.
The PLC fault diagnosis device reads the current I/O point state and the internal logic contact information of the PLC through the online interface, compares the current I/O point state and the internal logic contact information with pre-programmed standard data, and displays all three types of data of the PLC I/O state, the standard data and a comparison result. And the user refers to the comparison result, analyzes the fault reason and performs targeted processing.
Dynamic fault
When the PLC control cabinet is started (operated), the PLC cabinet has no fault, and after the PLC control cabinet is started, the fault occurs.
The PLC fault diagnosis device reads the PLC I/O state and the internal logic contact information, records event records of the data in the running process of the equipment according to time sequence, compares the event records with pre-edited standard data (the pre-edited standard data are obtained by modifying the data collected in normal running), obtains a comparison result, displays the comparison result, analyzes the fault reason and performs targeted processing.
Claims (4)
1. A PLC control cabinet fault diagnosis system is characterized by comprising a fault processing comparison module, a data acquisition module, a display module and a standard data module; the display module and the standard data module are connected to the fault processing comparison module, one end of the data acquisition module is connected with the fault processing comparison module, and the other end of the data acquisition module is connected with the PLC control cabinet;
the data acquisition module is a PLC online interface and is used for reading PLC input and output signals and internal data;
and the fault processing comparison module is a comparator and is used for comparing the data acquired by the PLC online interface with the standard data module.
2. The PLC control cabinet fault diagnosis system of claim 1, wherein the standard data module is written by a user and contains I/O tables and internal logic touch point information of fault-free PLCs.
3. The PLC control cabinet fault diagnosis system of claim 1, wherein the fault processing comparison module is further connected with a PLC data Chinese annotation module comprising the I/O of PLC and the Chinese name of the internal logic coil.
4. The PLC control cabinet fault diagnosis system of claim 1, wherein the display module is a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598878.5U CN215449972U (en) | 2021-03-24 | 2021-03-24 | PLC switch board fault diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598878.5U CN215449972U (en) | 2021-03-24 | 2021-03-24 | PLC switch board fault diagnosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215449972U true CN215449972U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120598878.5U Expired - Fee Related CN215449972U (en) | 2021-03-24 | 2021-03-24 | PLC switch board fault diagnosis system |
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| Country | Link |
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| CN (1) | CN215449972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116027730A (en) * | 2023-03-24 | 2023-04-28 | 承德泰宇热控工程技术有限公司 | PLC switch board remote control system |
-
2021
- 2021-03-24 CN CN202120598878.5U patent/CN215449972U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116027730A (en) * | 2023-03-24 | 2023-04-28 | 承德泰宇热控工程技术有限公司 | PLC switch board remote control system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |