Micromod RetroPAK: SLC Configuration Manual Bedienungsanleitung PDF herunterladen (Seite 187)

100

101

Pre-configured PID Ratio with Remote SP

GENERAL DESCRIPTION

The advanced PID controller function code implements a proportional integral derivative

controller.

This control strategy has a loop compound that performs with PID with remote setpoint

and ratio, I/O and other function blocks.

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.

The compound 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.

Figure P6.1.

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

P6- 1

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