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Apparatus control
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Using the same methods as for ordinary commands that come from different operator
places, there are inputs (select/execute/cancel) to be connected from other application
programs in the form of automatic functions. These programs can be located in the same
control terminal, in another terminal, or in a station computer.
One usage for automatic programs is when the apparatuses are included in a sequence,
for example, a busbar transfer. Figure 115 shows the signals connected to the COM-
CON module.
For example, outputs from
a sequence program
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The command outputs from the apparatus control modules can be connected to the out-
put module in different ways depending on functionality. The output module has super-
vised outputs. That is, the output relays are continuously supervised in a way that an
unwanted activation is detected, which stops the continuation of the operation. This is
performed by using the ERROR signal connected to BLKCONL for blocking the com-
mand. To get a secure command, two contacts are connected in series. The following
figures show examples of different configurations. The terminal diagram for the binary
output module shows detailed information about the terminal numbering.
COMCON
AU_SEL_O
.
AU_SEL_C
AU_OPEN
.
AU_CLOSE
.
AU_CANC
SEL_SEQ
To sequence
AU_MODE
program or/and
SEQ_STA
the station HMI
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233
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