Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Manual do Utilizador descarregar pdf (Página 91)

APPENDIX A: CONTROL STRATEGY

WIRELISTS

A.1 STANDARD CONTROL STRATEGIES

The wirelists for the ten control strategies of the 53MC5000 Process Control Station (PCS) are pro-

vided in this section. The resident control strategies of a PCS are option dependent: a one loop

PCS has 5 control strategies, CS1 - CS5; a two loop PCS has 8 control strategies, CS1 - CS22;

and a four loop PCS has 10 control strategies, CS1 - CS41. The wirelists for all 10 of these control

strategies are provided to expedite FCS generation — an existing control strategy wirelist that

most closely approximates the required application can be customized and entered into the FCS

datapoint locations. Even though the customized version of the standard control strategy is en-

tered into FCS datapoint locations B100 to B239, the original control strategy wirelist that was cop-

ied is not destroyed because it resides in the PCS Read Only Memory (ROM). It is therefore still

available to be invoked and executed by the PCS.

It should be noted that executing any standard control strategy will cause the FCS datapoint

wirelist assignment area (datapoints B100 to B239) to be overwritten, which would destroy

the customized version that was entered.

The control strategy wirelists, with associated block diagrams and brief functional descriptions are

provided in the order that follows:

CS1 — Single-Loop PID Controller

CS2 — Analog Backup Controller

CS3 — Ratio Controller

CS4 — Automatic/Manual Station

CS5 — Ratio Automatic/Manual Station

CS 20 — Two-Loop Controller

CS21 — Two-Loop Cascade Controller

CS22 — Two-Loop Override Controller

CS40 — Dual Two-Loop Cascade Controller

CS41 — Four-Loop Controller

Appendix A. Control Strategy Wirelists

4-1TXT

A-1

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 200 201

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