44 Rockwell Automation Publication 2080-UM001B-EN-E - November 2011
Appendix C IPID Function Block
PID Application Example
The illustration above shows a basic water level control system, to maintain a
preset water level in the tank. A solenoid valve is used to control incoming water,
filling the tank at a preset rate. Similarly, outflowing water is controlled at a
measureable rate.
Water In
Water Level
Tank
Water Out