Installation manual

Publication 1747-RM001G-EN-P - November 2008
9-4 Proportional Integral Derivative Instruction
• Process Variable PV is an element address that stores the process
input value. This address can be the location of the analog input word
where the value of the input A/D is stored. This value could also be an
integer value if you choose to pre-scale your input value to the range 0
to 16383.
• Control Variable CV is an element address that stores the output of the
PID instruction. The output value ranges from 0 to 16383, with 16383
being the 100% on value. This is normally an integer value, so that you
can scale the PID output range to the particular analog range your
application requires.