Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller FLEXIBLE CONTROL STRATEGIES - Manual (Page 60)

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