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Electrical Installation
Particularities for
If PU status functions are activated (message on PU: "Status processing in
connection of a PU
progress " – for example, for a block status, Force Var),
Upon termination of status functions by means of the ESC key on the PU, OP
functions are resumed.
If "Apply" is pressed once only with Force VAR after a value has been en-
tered, the value you entered is transferred to the PLC, and the status function
of the PU is still not active. This value (for example, a message bit or an ac-
tual value) can still be read by the looped-through OP and processed (for ex-
ample, display of the associated message or the actual value). Not until "Ap-
ply" is pressed a second time is the PU status function activated.
15-8
the following system message is displayed on the Operator Panel "$340
Status in progress, loop- through mode",
the OP can no longer be operated,
communication between the OP and the PLC is stopped. There is there-
fore little sense in evaluating error number 115 of the standard FB on the
PLC in this particular instance.
Manual OP5, OP15
( ) J31069-D0840-U001-A2-7618
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