Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller FLEXIBLE CONTROL STRATEGIES - Manual (Page 54)

2.7.33 AUTO/MANUAL SWITCH 2
The Auto/Manual Switch 2 (AMS 2) 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, L153 and L155, indicate which source is supplying the continuous out-
put signal at C174. An illustration of the AMS 2 module follows the tables.
Inputs Inputs
WIRELIST SYMBOL DATA
TYPE
ASSIGNED VALUE WIRELIST SYMBOL DATA
TYPE
ASSIGNED VALUE
B219 AE2 L B221 OTV2 C
B220 SWOVT2 L B222 CO2 C
Output Datapoints: C174, L153, L155
Parameters Parameters
SYMBOL DATAPOINT ASSIGNED VALUE SYMBOL DATAPOINT ASSIGNED VALUE
SWA2 L160 HML2 L170
OTE2 L167 OH2 C181
T3-2 C190 OL2 C182
L155 L153 C174 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).
AE2...auto enable
A/M2...auto/manual
AUT2...auto status
CO2...control output
HML2...hard manual limit
OH2...output high limit
OL2...output low limit
OTE2...output track enable
OTV2...output track value
OUT2...output
OVTS2...output track
status
SWA2...auto switch
SWOVT2...output tracking
switch
T3-2...output slew rate
Section 2. FCS Modules
AMS-2
2-47