Specifications

Parameters/address space
4.3 Declaration of parameters
Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0)
18 Manual, 07/2014, A5E03484886-AC
Parameters
Range of values
Default
setting
Parameter as-
signment in RUN
Scope with configuration software, e.g.,
STEP 7 (TIA Portal)
GSD file
PROFINET IO
GSD file
PROFIBUS DP
• Hardware interrupt
low limit 1
Yes/No No Yes Channel ---
4)
• Hardware interrupt
high limit 2
Yes/No No Yes Channel ---
4)
• Hardware interrupt
low limit 2
Yes/No No Yes Channel ---
4)
1)
If you enable diagnostics for multiple channels, you will receive an alarm surge on failure of the supply voltage because
each enabled channel will detect this fault.
You can prevent this message burst by assigning the diagnostics function to one channel only.
2)
When "Wire break" diagnostics is disabled, the current limit of 1.185 mA is applied to the value status. For measured
values below 1.185 mA, the value status is always: 0 = fault.
3)
You can set the effective range of the diagnostics for each channel in the user program with data records 0 to 7.
4)
You can set the current limit for wire break diagnostics, the "Hardware interrupt" parameter and the hardware interrupt
limits in the user program with data records 0 to 7.
4.3
Declaration of parameters
Missing supply voltage L+
Enabling of the diagnostics, with missing or too little supply voltage L+.
Overflow
Enabling of the diagnostics if the measured value violates the high limit.
Underflow
Enabling of the diagnostics if the measured value violates the low limit.
Wire break
Enabling of the diagnostics if the module has no current flow or the current is too weak for
the measurement at the corresponding configured input or the applied voltage is too low.
Current limit for wire break diagnostics
Threshold for reporting wire breaks. The value can be set to 1.185 mA or 3.6 mA, depending
on the sensor used.