Siemens SIMATIC S7-1500 Manual page 28

Parameters/address space
4.2 Parameters
Parameters
Hardware interrupts
Hardware interrupt low
•
limit 1
Hardware interrupt high
•
limit 1
Hardware interrupt low
•
limit 2
Hardware interrupt high
•
limit 2
If you enable diagnostics for multiple channels, you will receive an alarm surge on failure of the supply voltage because
1)
each enabled channel will detect this fault. You can prevent this alarm surge by assigning the diagnostics function to
one channel only.
When "Wire break" diagnostics is disabled, the current limit of 1.185 mA is applied to the value status. For measured
2)
values below 1.185 mA, the value status is always: 0 = fault.
You can set the effective range of the diagnostics for each channel in the user program with data records 0 to 3.
3)
You can set the current limit for wire break diagnostics, the setting "Fixed reference temperature" as well as the limits for
4)
hardware interrupts in the user program with data records 0 to 3.
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Range of values Default
setting
Yes/No No
Yes/No No
Yes/No No
Yes/No No
Reconfigu- Scope with configuration software, e.g.,
ration in
RUN
Integrated in the
hardware catalog
STEP 7, as of V13
or
GSD file
PROFINET IO
Yes Channel
Yes Channel
Yes Channel
Yes Channel
Analog Input Module AI 4xU/I/RTD/TC ST (6ES7531-7QD00-0AB0)
STEP 7 (TIA Portal)
GSD file
PROFIBUS DP
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Manual, 09/2016, A5E32366209-AC