An approach to identification procedures for PID control with PLC implementation

Control engineers usually face in industry to the large amount of complex processes. They need tools for assessing correct performance of control loops. This paper deals with the approach to identification procedures in control performance monitoring for PID control with PLC implementation. There are a lot of tools for performance monitoring on higher level of DCS. These tools are mainly implemented on PC´s. In this paper we present implementation of identification procedures and control performance monitoring functions in programmable logic controllers (PLC).