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Operational method of PLC real-time operating data recording storing system

A data recording and storage system technology, applied in general control systems, control/regulation systems, sequence/logic controller program control, etc., can solve the problem that the operating data of a single PLC system cannot be stored for a long time, and achieve traceability The effect of reliability, low cost and simple configuration

Inactive Publication Date: 2017-02-22
LUOYANG MINING MACHINERY ENG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a kind of operation method of PLC real-time operation data recording and storage system, effectively solve the problem that the operation data of a single PLC system cannot be stored for a long time, and realize the operation data of a single PLC system The traceability enables the accumulation of a large amount of long-term operation data to provide a basis for further equipment troubleshooting and equipment optimization, and solves technical problems that have been difficult to solve for a long time. Compared with adding DCS systems, the configuration is simple and no special industrial equipment is required. Configuration software, low cost

Method used

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  • Operational method of PLC real-time operating data recording storing system

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Experimental program
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Effect test

Embodiment 1

[0040] One end of the PLC control system 1 is equipped with a serial communication module 2, the serial communication module 2 is equipped with an RS-232 serial communication protocol port 21, the data memory 3 is configured with a serial communication receiving port 31, and the RS-232 serial communication protocol port 21 is connected with the serial communication receiving port Communication line 4 is arranged between 31, and described PLC control system 1 adopts Siemens S7-300 series, CPU-315-2DP, and described serial communication module 2 adopts CP340, and described data memory 3 adopts LDS1 model product, and described communication line 4 Adopt standard DB9RS-232 communication line;

[0041]Perform hardware configuration and configuration first, then PLC programming, and then transfer and save data. When you need to view data, take out the TF memory card 5 in the data storage 3, insert it into the card reader 6, and then insert it into the computer 7 to view the TF memor...

Embodiment 2

[0043] The specific operation steps of the hardware configuration configuration are as follows:

[0044] In the first step, after the hardware connection is completed, it is necessary to use Siemens PLC programming software Step7V5.5 to configure the hardware of the PLC control system 1, serial communication module 2 and data storage 3, the purpose of which is to ensure that the serial communication module 2 and data storage The communication parameter settings of 3 are consistent, open the project in the manager button SIMATIC in the Siemens PLC programming software Step7V5.5, call the HWCONFIG configuration table, double-click CP340RS232C, and open the dialog box of the property button CP 340-RS232Cproperties;

[0045] The second step is to write down the module address in the address button Addresses. When calling FBP_PRINT in the user program, the module address needs to be used as a parameter;

[0046] The third step is to click the command button in the parameter button ...

Embodiment 3

[0054] The specific operation steps of the PLC programming are as follows:

[0055] In the first step, after the hardware configuration is completed, the PLC needs to be programmed, the purpose is to send out the RS-232 serial communication protocol port 21 of the required data communication serial communication module 2, first in the manager button SIMATIC Use the file button File>Open button Open...>Library button Libraries in the Siemens\STEP7\S7libs\CP PtP directory to open the CP 340 and its block container of the block button Blocks folder;

[0056] The second step is to open a window consisting of the library title and the FB and FC belonging to the CP 340, and copy FB 4 to the block button Block folder of the project;

[0057] The third step, in the SIMATIC manager button, use the file button File>Open button Open...>Library button Libraries in the Siemens\STEP7\S7libs\StdLib30 directory to open the block button Blocks folder IEC function block and its block container ...

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Abstract

Disclosed is an operational method of a PLC real-time operating data recording storing system. A serial communication module is arranged on one end of a PLC control system, a RS-232 serial communication protocol port is configured on the serial communication module, a serial communication receiving port is configured on a data storage unit, a communication line is arranged between the RS-232 serial communication protocol port and the serial communication receiving port. The operational method comprises the steps of firstly conducting hardware configured configuration, then conducting PLC programming, transmitting and store the data, when the data needs to be checked, taking out a TF memory card in the data storage unit and inserting the memory card into a card reader, and inserting the card reader into a computer so as to copy data in the TF memory card. According to the operational method of the PLC real-time operating data recording storing system, the problem that the operation date of a single PLC system can not be stored for a long time can be solved, traceability of the operational data of the single PLC system can be achieved, thus accumulation of a large amount of the operational data in a long period can be used for providing evidence for further equipment failure checking and equipment optimization; meanwhile, configuration is simple and cost is low.

Description

technical field [0001] The invention relates to the technical field of PLC data storage, in particular to an operation method of a PLC real-time operation data recording and storage system. Background technique [0002] PLC has developed to this day, and has formed a series of products of various scales, including large, medium and small. It can be used in industrial control occasions of various scales. But so far, the PLC control system has always adopted the basic structure of input scanning, data processing and result output. Therefore, although it has many advantages and is widely used, it still only completes the real-time control function. All detected analog input, output, digital input, output signals and intermediate variables will be overwritten in the next scan cycle and cannot be stored for a long time. [0003] At present, the industrial control system mainly relies on the DCS system to save the PLC operation data. The PLC transmits the required data to the DC...

Claims

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Application Information

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IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/13129
Inventor 郝兵姬建钢杜波杜自彬郭庶高源马连铭赵虎田振华李客李建强刘建平赵经国李振海
Owner LUOYANG MINING MACHINERY ENG DESIGN & RES INST
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