3 Setting up functions 12/2008
3.4 Fault services
© Siemens AG 2008 All Rights Reserved
3-114 ePS Network Services, Function Manual (FH) - Release 12/2008
Field Content Type
Comment Enters a comment for the absolute
address
INPUT
Add
Adds the edited address to the AND logic
operation of the trigger conditions.
Notice:
The comparison operation must be
entered separately. ePS Network Services
permits saving without a comparison
operation; this renders the trigger
ineffective.
ACTION
"PLC Trigger" tab
The comparison operation can be edited under "PLC Trigger".
Field Content Type
PLC trigger Shows the comparison operations for the
AND logic operations in the trigger, which
can also be edited
TAB
DISPLAY
INPUT
Trigger 1
Trigger 2
...
Trigger n
The comparison operations for Trigger 1
and Trigger 2 are logic OR.
The comparison operation consists of the
comparison operation (>, <, =, <>) and the
fixed comparison value (digit).
Notice:
ePS Network Services will not check the
plausibility of the variable address for the
potential comparison operation and actual
comparison value.
It is possible but not meaningful to compare
a binary address M1.1 with greater than
9999.
INPUT
DISPLAY
±
Entry for a comparison value tolerance, in
which the trigger condition is still fulfilled.
Note:
ePS Network Services will not check the
specified tolerance for plausibility. The
tolerance is only advisable in = operations
with values (no binary signals).
With >, < operations, the comparison value
can be specified correctly instead of the
tolerance, as a tolerance direction has no
effect.
INPUT
DISPLAY
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