Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Uživatelský manuál stáhnout pdf (Strana 38)

G08

PID - 0

NAME SYMBOL DATAPOINT

INPUTS

PROCESS VARIABLE PV0 C100

DEVIATION DV0 C121

RESET FEEDBACK RF0 C127

CONTROL TRACK

COMMAND

CTC0 L123

PARAMETERS PROPORTIONAL BAND PB0 C106

RESET TIME TR0 C107

RATE TIME TD0 C108

OUTPUT HIGH LIMIT OH0 C109

OUTPUT LOW LIMIT OL0 C110

MANUAL RESET MR0 C111

INSTRUMENT RANGE IR0 C115

FEED FORWARD FF0 C122

REVERSE SWITCH RSW0 L106

OUTPUTS

CONTROL OUTPUT CO0 C123

Description:

This subroutine computes a control output signal based on the above listed inputs

and parameters. The result is available as a database parameter CO. When the

control track command is zero,the module output will track the reset feedback by

back calculating the integrator term. When CTC is 1, the reset feedback is used by

the integrator to calculate the next output and should reflect the value (scaled

0-100%) of the value of the final control element. For standard PID controller

operation, reset feedback should equal OUT and control track command should

equal AUT.

MODULAR CONTROLLER CUSTOMIZATION GUIDE

2-31

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 122 123

Žádné komentáře

Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Uživatelský manuál Strana 38