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202
Apparatus control
From SWICON
From BAYCON
1.
From station
HMI
2.
From remote
gateway
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&20&21
In the other way to select that is normally used as standard from remote gateway (see
item 2 in figure 87), both selection inputs R_SEL_O and R_SEL_C are set at the same
time. It sets only the RQ_SEL output. At reception of the SELECT, it allows the execute
command R_OPEN or R_CLOSE to pass through. But now only one execute command
R_OPEN or R_CLOSE can be given and COMCON passes the EXECUTE command
with the OPEN/CLOSE directions.
The operation from a local operator place works in the same way as both alternatives
from station HMI and remote gateway and can consequently be connected in a corre-
sponding way.
When the operation has ended or failed, COMCON receives an input indication
SEL_RES from SWICON. On reception of this input, it resets the stored commands and
outputs.
An operation, which has already started with a selection, can be cancelled. The R/
S_CANCEL inputs handle this. The output CANCEL is connected to the CANCEL in-
put on SWICON to reset the started selection. COMCON also has an S/L_IR_OVR
override input for station and local and an OVERRIDE output, which overrides the se-
lection and reservation in other program parts.
COMCON also supports commands for blocking of operation and commands for man-
ual position updating. These signals can come from station only and are being sent
through to the rest of the program.
COMCON
SEL_RES
RQ_SEL
SELECT
S_SEL_O
OPEN
S_SEL_C
CLOSE
S_OPEN
EXECUTE
S_CLOSE
CANCEL
S_CANCEL
R_SEL_O
R_SEL_C
R_OPEN
R_CLOSE
R_CANCEL
To BAYCON
To SWICON
99000325.vsd
&KDSWHU
&RQWURO
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