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Simulation test system for industrial refrigerating unit and testing method applied to system

A refrigeration unit, simulation test technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of low efficiency of manual input and debugging, easily damaged compressors and other equipment, and equipment that cannot be reused, etc., to achieve improvement The effects of program reliability and stability, energy saving, and on-site debugging time saving

Inactive Publication Date: 2015-07-08
基伊埃工程设备技术(苏州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method to debug the PLC program has certain risks, it is easy to damage the compressor and other equipment, and waste electric energy
The method of hardware testing is to download the written PLC program to the CPU, use the equipment composed of 4mA ~ 20mA signal instrument and knob switch to connect with the PLC, adjust the instrument knob and knob switch, and observe the indicator light to debug the PLC program. Although the method can eliminate some error programs, manual input and debugging are inefficient. For debugging of different projects, the equipment cannot be reused. For debugging of larger projects, the steps of equipment construction are relatively cumbersome

Method used

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  • Simulation test system for industrial refrigerating unit and testing method applied to system
  • Simulation test system for industrial refrigerating unit and testing method applied to system

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0021] as the picture shows, figure 1 It is a structural schematic diagram of the industrial refrigeration unit simulation test system provided by the present invention. The industrial refrigerating unit simulation test system of the present invention is used to test whether the PLC program developed by programming is suitable for controlling the operation of the refrigerating unit, and includes a refrigerating unit simulation system and a refrigerating unit m...

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Abstract

The invention provides a simulation test system for an industrial refrigerating unit, and a testing method applied to the system. The system comprises a simulation system for the industrial refrigerating unit, and a main control system for the industrial refrigerating unit, wherein the main control system is connected with the simulation system. The simulation system comprises a PLC, a WinMoD simulation unit, and an SIMBApro simulation unit, wherein the WinMoD simulation unit and the SIMBApro simulation unit are connected with the PLC. The main control system comprises the PLC and a man-machine interface. The WinMoD simulation unit is used for simulating I / O channels of all devices in the industrial refrigerating unit, and the SIMBApro simulation unit is used for simulating the I / O channels and the function of terminal equipment through a bus DP / PA. The system provided by the invention can completely simulate the condition of on-site equipment and an on-site bus, can achieve the simulation tests of all devices, avoids variable errors or dot mark leakage during on-site debugging, saves a large amount of time for on-site debugging, achieves the real seamless joint of a PLC program with simulation software, and employs a PC to debug the PLC program. When the system is used for debugging the PLC program, the testing efficiency is high, and the on-site debugging time is saved. Moreover, the energy is saved, and the stability of a program is good.

Description

technical field [0001] The invention relates to a test system based on WinMoD automatic simulation technology and a method for testing software to be tested by applying the system, and is especially suitable for testing control programs of industrial refrigeration units. Background technique [0002] Industrial refrigeration units are composed of refrigeration compressors, condensers, evaporators, solenoid valves, oil separators, liquid storage barrels, motors, oil pump return filters and other components. In order to continuously improve refrigeration efficiency and stable operation, PLC (programmable logic controller) is usually used for control. PLC uses a memory that can be programmed to store instructions for performing logic operations, sequential operations, timing, counting, and arithmetic operations, and can control various types of devices through digital or analog input and output. machinery or production process. However, before the PLC participates in controll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 颜新荣王业红
Owner 基伊埃工程设备技术(苏州)有限公司
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