Micromod RetroPAK: SLC Configuration Manual - Manual (Page 169)

Pre-Configured – Cascade Control
GENERAL DESCRIPTION
This is a pre-configured loop compound that has inputs, outputs, complete Cascade loop
PID control and display.
The MOD 30ML loop compound Cascade Loop uses Input, Output blocks, PID blocks,
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.
UTILIZATION
Load this compound at the top level (where the IF, DIF, SE and ST blocks are located) of
the function block diagram.
Internally the loop compound has the compound Function Code 156 – Cascade.
Figure P5.1.
Cascade PID
P5- 1