User manual

118 Publication LOGIX-AP010B-EN-P - May 2010
Chapter 7 Drive and Loop Control
Logix Analog Control
The RSLogix 5000 instruction set includes a PID block that executes control
over a process variable. The PID calculations are performed on an analog
signal coming from a standard analog input module. The PID output is
transferred to the corresponding control variable via a standard analog output
module. The PID calculations are performed by the controller so no dedicated
hardware module is required.
A PID Tag is defined in the tag database and it automatically generates all the
required PID elements.
In the FBD language, an enhanced PIDE block is also available.