Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller CUSTOMIZATION GUIDE - Manual (Page 60)

F-CIM 41
PID - 0
NOT REUSABLE
NAME SYMBOL DATAPOINT
INPUTS
S n-1 DEVIATION DV0 C121
A [unused]
B RESET FEEDBACK RF0 C127
C CONTROL TRACK COM-
MAND CTC0 L123
PARAMETERS PROPORTIONAL BAND PB0 C106
RESET TIME TR0 C107
RATE TIME TD0 C108
OUTPUT HIGH LIMIT OH0 C109
OUTPUT LOW LIMIT OL0 C110
MANUAL RESET MR0 C111
INSTRUMENT RANGE IR0 C115
FEED FORWARD FF0 C122
REVERSE SWITCH RSW0 L106
OUTPUTS
S n CONTROL OUTPUT CO0 C123
Description:
This module computes a control output signal based on the above listed inputs and parameters.
The result is simultaneously available as the module output Sn and as a database parameter CO.
The A, B, and C inputs can be any L,B, C[S], or H type datapoint. When the control track command
(C) input is less than one, the module output will track the reset feedback input (B) by back calcu-
lating the integrator term. When (C) input is greater than or equal to 1 the reset feedback is used
by the integrator to calculate the next output and should reflect the value (scaled 0-100%) of the
value of the final control element. For standard PID controller reset feedback, (B) should be OUT
and control track command should be AUT.
MODULAR CONTROLLER CUSTOMIZATION GUIDE
3-8