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37 auto/manual switch 3 – Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller FLEXIBLE CONTROL STRATEGIES User Manual

Page 60

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2.7.37 AUTO/MANUAL SWITCH 3

The Auto/Manual Switch 3 (AMS 3) module provides a continuous output signal that is derived
from one of three sources which are the output track value (OTV), control output auto value (CO),
or the manual push button value. The output priority is OTV, CO, and output push buttons. The in-
put variable parameter values also affect the output, as determined by the output selection made.
The two tables that follow list the input variables and the parameters. As shown in the third table,
two logical output signals, L177 and L179, indicate which source is supplying the continuous out-
put signal at C210. An illustration of the AMS 3 module follows the tables.

Inputs

Inputs

WIRELIST

SYMBOL

DATA

TYPE

ASSIGNED VALUE

WIRELIST

SYMBOL

DATA

TYPE

ASSIGNED VALUE

B233

AE3

L

B235

OTV3

C

B234

SWOVT3

L

B236

CO3

C

Output Datapoints: C210, L177, L179

Parameters

Parameters

SYMBOL

DATAPOINT

ASSIGNED VALUE

SYMBOL

DATAPOINT

ASSIGNED VALUE

SWA3

L184

HML3

L194

OTE3

L191

OH3

C217

T3-3

C226

OL3

C218

L179

L177

C210 OUTPUT

0

0

Output push button value.

1

0

Control Output auto value - CO (when SWA = 1 and AE = 1, AUT is true - lower toggle to 1). CO out.

0

1

Output Track Value - OTV (when SWOVT = 0, and OTE = 1, OVTS is true - upper toggle to 1). OTV
out.

1

1

Output Track Value - OTV (same as above, but both toggles at 1).

AE3...auto enable
A/M3...auto/manual
AUT3...auto status
CO3...control output
HML3...hard manual limit
OH3...output high limit
OL3...output low limit
OTE3...output track enable
OTV3...output track value
OUT3...output
OVTS3...output track status
SWA3...auto switch
SWOVT3...output tracking
switch
T3-3...output slew rate

Section 2. FCS Modules

AMS-3

2-53