Micromod RetroPAK: SLC Configuration Manual - Manual (Page 345)

Function Code 156 – PID Ratio with Remote SP
GENERAL DESCRIPTION
The advanced PID controller function code implements a proportional integral derivative
controller.
UTILIZATION
The MOD 30ML/MODCELL compound FC156 – PID Ratio with Remote SP uses a
PID block, PAD (Process Alarm Display) blocks and a variety of other blocks to perform
a full-pledged Cascade loop (master – slave). The PID is advanced with feed-forward
control, bump-less transfers and other features.
Load this compound inside a loop compound.
Figure 156rr .1.
Function Code
156
PID Ratio with
Remote SP
EXPLANATION
Configuration with this compound requires understanding of the compound and how the
PID block is configured in the MOD 30ML/Modcell controllers. Following is the
156rr - 1