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Programmable logic controller (PLC) experimental system

An experimental system and experimental technology, applied in the field of PLC experimental system, can solve the problem of high cost of the controlled object and achieve the effect of low price

Inactive Publication Date: 2012-07-25
CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of this kind of material object is very high, and most colleges and universities cannot afford it.

Method used

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  • Programmable logic controller (PLC) experimental system
  • Programmable logic controller (PLC) experimental system
  • Programmable logic controller (PLC) experimental system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] The operating system in the PC is Windows series operating system.

[0026] Among the application software in the PC, the controlled object simulation software is mainly Simit and Delphi, the monitoring configuration software is mainly WinCC, and the programming and debugging software is mainly the PLC programming software STEP 7 and the controller simulation software PLCSim.

[0027] The management software in the PC, the process is as follows image 3 shown.

[0028] Before carrying out the experiment, the user first needs to log in, and then enter the main interface of the experimental system, the user can view personal information, etc., the user selects a specific PLC experiment, and the experiment list is stored in the Experiment database.

[0029] When the user selects a specific experiment, he can click "Experiment Instructions" in the management software to open the detailed design instructions of the experiment to understand the purpose of the experiment, exp...

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Abstract

The invention belongs to the technical field of automatic control and electronics, and discloses a programmable logic controller (PLC) experimental system, which comprises three parts of a PC (personal computer) (1), a signal conditioning board (2), a PLC controller (3), wherein the signal conditioning board comprises a mainboard (21), a digital quantity interface board (22) and an analog quantity interface board (23); the PLC controller comprises a central processing unit (CPU) (31), a digital input / output data input (DI) / data output (DO) (32) and an analog input / output (AI / AO) (33). The PC is communicated with the signal conditioning board through an Ethernet; the PC is communicated with the PLC controller through a multi-point interface (MPI) adapter; and the signal conditioning board is communicated with the input (I) / output (O) port of the PLC. The software resource of the PC is substituted for a controlled object in a PLC control system, the lack of the number and the types of the controlled object of a real object in the experiment is made up, and the price of the experimental system is maintained low.

Description

technical field [0001] The invention belongs to the field of automatic control and electronic technology, and more specifically relates to a PLC experiment system. Background technique [0002] With the widespread application of Programmable Logic Controller (PLC) in modern industrial control systems, the development and application of PLC experimental systems have been paid more and more attention. In the PLC control experiment system, the controlled object is an indispensable and important part. Only under the condition of the controlled object, the control function and control characteristics of PLC can be fully displayed, and the requirements of experimental teaching can be better met. [0003] With the rapid development of science and technology, modern control system design has entered the era of virtual simulation. Using the means of virtual simulation, designers can complete the control system design on the computer. Compared with physical objects and mechanical m...

Claims

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Application Information

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IPC IPC(8): G05B19/05
Inventor 马小云
Owner CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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