TRICONEX 8312 Redundant Control System

The 8312 includes two 414-4hcpu, two redundant power supply templates, and two redundant cp443 network cards. One cpu (main) participates in the control during normal operation, and the other cpu (spare) is synchronised with it through the synchronisation module. When failures of the main cpu, rack, power supply, communication, etc. are detected, the spare cpu is immediately put into control without affecting the continuity of the production control.

8312 adopts remote i/o mode, according to the actual number of i/o points configured 2 et200m intelligent remote i/o station, remote intelligent i/o station and controller using redundant profibus bus communication. The decompression control station selects siemens s7-200 plc control system, and installs human-machine interface for local operation and setting relevant parameters. Decompression control station using em277 and gas cabinet control station to achieve network communication, gas cabinet control station for the system master.

8312 the whole system network is divided into field level, control level, monitoring level three levels, the system network structure is shown in figure 1. field level using profibus dp redundant field bus for communication, mainly to achieve s7-400h master and remote intelligent slave station data transmission between the use of siemens twisted pair transmission rate up to 12mbps. control level to achieve s7-400 plc and s7-200plc data exchange, the control level between s7-400 plc and s7-200plc data exchange, the control level and s7-400plc data exchange, the control level of s7-400 plc and s7-200plc data exchange. 200plc data exchange between the s7-400 plc and s7-200plc, using profibus dp bus for communication, s7-400 plc redundant profibus dp bus and s7-200plc single bus using y-link conversion module for bus automatic conversion