PumpPidStag: Pump Stage / Destage
This section describes the PumpPidStag function block that consists of a PID function and a stage / destage pumping management.
It executes two main tasks to help to maintain a constant pressure in a water distribution network:
oThe PID function is used to generate a PID control value (called the control value throughout this document). This value is used for the speed reference for the VSDs.
oThe stage function is used to generate a stage value for the pumps. This stage value indicates whether an additional pump has to be switched on or a running pump has to be switched off.
NOTE: This function block is designed to be used in conjunction with other function blocks of the Pumping Library.
This section contains the following topics:
