PID Temperature Control System Based on S7-200 PLC and WinCC Flexible 2008

The PID temperature control system based on S7-200 PLC and Flexible 2008 configuration software is studied.The hardware composition and working principle of PID temperature control system based on S7-200 PLC and Flexible 2008 are introduced.Gives the realization of temperature PID control PLC program design and flexible 2008 configuration software design points.The temperature control system can be dynamically monitored via the Flexible 2008 configuration software and PID temperature control thresholds can be set.This kind of control model not only uses the advantage that PLC has high reliability,strong anti-interference capacity,but also uses the merit that configuration software has great openness,excellent interface display configuration,which realizes the temperature closed-loop control in temperature detection and driving module.