ABB REO 517, Applications Manual, Page: 211 / 440

201
Apparatus control
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BAYCON has an amount of information that concerns the permission for automatic op-
eration. This information is made available at the AU_OP_Vx outputs. Other elements
can combine this information to a signal to an automatic function indicating permission
for operation.
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Time-out when the reset of the reservation acknowledgement is not done by the request-
ing bays, for example, because of communication error.
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COMCON acts as an interface between the possible operator places and the bay and the
apparatus-control program. The validity of operator places is indicated on the RE-
MOTE, STATION and LOCAL inputs. Only the signals from the operator place(s) that
are valid are executed. When a change occurs, COMCON checks validity and forwards
the commands to the outputs, if they are correct.
From station level, COMCON supports two ways of command executions:
1. From station HMI.
2. From remote gateway.
In the first way, that is normally used as standard from the station HMI (see item 1 in
figure 87), only one selection input is activated, S_SEL_O or S_SEL_C. COMCON
sets the RQ_SEL and the concerning direction output, OPEN or CLOSE. After the SE-
LECT input is set by BAYCON, it allows the execute command S_OPEN and
S_CLOSE to pass through. These execution inputs can be set at the same time or before
SELECT is activated. Then the EXECUTE output is also activated.