Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Bedienungsanleitung PDF herunterladen (Seite 63)

F-CIM 47

DEVIATION/ALARM CALCULATION - 0

NOT REUSABLE

INPUTS NAME SYMBOL DATAPOINT

n-1

SETPOINT SP0 C101

A PROCESS VARIABLE PV0 C100

PARAMETERS SETPOINT SLEW RATE T10 C117

CONTROL ZONE C20 C114

ALARM INDEX AIX0 B335

ALARM LIMIT 1 PL10 C103

ALARM LIMIT 2 PL20 C104

ALARM DEADBAND ADB0 C105

OUTPUTS

DEVIATION DV0 C121

ALARM A PA10 L110

ALARM B PA20 L111

TRUE SETPOINT TSP0 C119

Description:

This module calculates and loads the deviation value based on setpoint (S

) and

process variable (A). Before the calculation is performed the setpoint value is con-

ditioned so as not to exceed the rate of change limit specified by T1. If the calcu-

lated deviation falls within the CZ value, then deviation is forced to 0.0. This

module also determines if alarm conditions exist based on AIX, PL1, PL2 and

ADB. Results of the alarm tests are loaded to PA1 and PA2. Refer to Section

4.1.6 of Instruction Bulletin 53MC5000 for an explanation of AIX values.

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Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Bedienungsanleitung Seite 63