Design of Quenching Control System Based on S7-1200 PLC
The seamless steel pipe quenching heat treatment production line requires a continuous and stable supply of cooling water to ensure the quality of the steel pipe.Call the PID_Compact in Siemens programming software Por-tal to achieve constant pressure control,and transmit the program calculation results to the frequency converter through the PROFINET bus to control the speed of the water pump and achieve variable frequency constant pressure water supply.Using a PROFINET 1O control system,the on-site I/O equipment ET200S and frequency converter e-quipment G120 are transparently connected to PROFINET,achieving seamless integration of the fieldbus system.