PROFIBUS based fault setting system

Abstract

The invention relates to a PROFIBUS based fault setting system, which comprises a PROFIBUS-DP bus, an upper computer, a CP5611 communication card, a master station and seven slave stations, wherein the master station comprises a master station programmable controller, a DI / DO and a guide rail, and each salve station comprises a slave station programmable controller and an EM277 communication module. The PROFIBUS based fault setting system is characterized by further comprising slave station fault setting devices, a PROFIBUS-DP bus based hardware configuration and touch screen configuration fault setting interface and an upper computer WINCC monitoring interface; and the salve station fault setting devices of the seven slave stations are identical in structure, and each slave station fault setting device comprises a touch screen, an input detection module, an output driving module, a relay matrix driving circuit module and an RS-485 communication cable. The fault setting system provided by the invention is high in automation degree, user-friendly in interface, easy to operate, convenient and flexible in fault setting, high in efficiency, reliable in operation and low in maintenance cost; and home station faults can be set at the upper computer or a lower computer, effects of practical training teaching are obvious.

Description

technical field [0001] The invention relates to a teaching aid for railway experiment and training, in particular to a PROFIBUS-based fault setting system suitable for comprehensive training and teaching of automatic production lines in electrical automation, mechatronics and other specialties. Background technique [0002] The prior art teaching aids for comprehensive training and teaching of automated production lines for electrical automation, mechatronics and other majors are the YL-221 automatic production line training and teaching platform developed by Yalong Technology Group Company. According to the current actual teaching practice, YL -221 production line training teaching platform has the following deficiencies: [0003] 1. YL-221 automatic production line training teaching platform consists of a host computer, a S7-300PLC master station and 7 S7-200PLC slave stations to form a distributed control system, the system is huge (the entire production line occupies an...

AI Technical Summary

Problems solved by technology

[0003] 1. YL-221 automatic production line training teaching platform consists of a host computer, a S7-300PLC master station and 7 S7-200PLC slave stations to form a distributed control system, the system is huge (the entire production line occupies an area of ​​about 50m 2 ), the structure is complex, and the overall debugging is difficult. Any failure of a workstation may cause the system to fail to run online, and the threshold for applying it to teaching is relatively high;

[0004] 2. Even if it is used in actual teaching, due to the excessive number of wiring and disassembly of the equipment by students, the damage rate of the equipment is too high, which increases the difficulty of equipment maintenance and teaching;

[0005] 3. Practice has proved that the most effective training teaching method is to train students' troubleshooting ability, but the system's fault setting link is very simple, there are too few fault points, the training workload is not enough, and the basic principles and core technologies of the production line cannot be covered. Mechanical switch setting failure intelligence is not high;

[0006] 4. The fault point setting method can only set 3-5 fault points on a single station through the pull-out switch on the panel. The host computer as the teacher's computer cannot set the fault of the slave station, which invisibly increases the unnecessary workload of the teacher.

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