Breakdown mill system discrete type network control system

Abstract

The invention discloses a breakdown mill system discrete type network control system. The breakdown mill system discrete type network control system comprises a CP3 operation room, a programmable logic controller (PLC), a coder group, a sensor group, and a DC network cable. The PLC comprises an Ethernet switch, a power supply (PS), a central processing unit (CPU), a communication module (CP), a repeater, and an optical fiber link module. The communication module belongs to the output unit of the PLC, and comprises a common communication module and an expansion communication module. The expansion communication module is used to divide DP network equipment on one main line into a plurality of segments, and hardware is regrouped in an automatic control process. The coder group and the sensor group are groups formed according to frequencies of fault occurrence of various areas. The DP network cable comprises a twisted-pair DP network cable, a galvanized tube, and a grounding wire. The galvanized tube is disposed on the outer side of the twisted-pair DP network cable in a sleeved manner, and the tubes are connected together in a bridged manner by using the grounding wire. Network disconnection influences caused by network equipment faults are effectively reduced, and fault points are monitored.

Description

technical field [0001] The invention belongs to the industrial control application field of a position sensor based on Profibus-DP network control, and in particular relates to a discrete network control system of a blanking machine system. Background technique [0002] In industrial control, the Profibus-DP network is one of the most widely used fieldbus networks, and usually uses twisted pair or optical fiber to realize communication. Generally, the entire DP network equipment is hung under a CP communication processor, although some The system is designed with the addition of a network repeater to amplify the signal, but once a DP network device has a DP drop, the entire CP communication processor will report a BF fault, which may easily cause a DP network disconnection . Especially when the Profibus-DP network is used in the blanking machine system, due to the complex network of the blanking machine system, the production interruption of the blanking machine is often ca...

AI Technical Summary

Problems solved by technology

[0002] In industrial control, the Profibus-DP network is one of the most widely used fieldbus networks, and usually uses twisted pair or optical fiber to realize communication. Generally, the entire DP network equipment is hung under a CP communication processor, although some The system is designed with the addition of a network repeater to amplify the signal, but once a DP network device has a DP drop, the entire CP communication processor will report a BF fault, which may easily cause a DP network disconnection

Especially when the Profibus-DP network is used in the blanking machine system, due to the complex network of the blanking machine system, the production interruption of the blanking machine is often caused by the flash of the DP network, which seriously restricts the improvement of the production capacity of the workshop

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