Our company designed explosion-proof redundancy control system for customers. The system adopted Siemens S7-400 redundancy control system. The computer used Yanhua 610 series duplex computer RAID1 redundancy, and the network used Dual Ethernet redundancy. 

In the field, signal isolation and transformation are adopted by our company's DK3000 and DK1000 series isolation data transmission module. The design of the system is very difficult. All the designs adopt redundant design to ensure the stable operation of the system under any circumstances. The software uses SIEMENS's WINCC system.