proto

steam header pump vfd freq cmd point

implements

cmd

Point is a command, actuator, AO/BO

freq

Occurrences per unit time

header

Pipe used as central connection or manifold for other piping runs

point

Data point such as a sensor or actuator

pump

Pump equipment or control point

steam

Water in its gas form

vfd

Variable-frequency drive

vfd-freq

VFD frequency measured in "Hz"