Diagnostics Alarms - Siemens SIMATIC S7-1500 Manual

Interrupts/diagnostics alarms

5.3 Diagnostics alarms

5.3 Diagnostics alarms
A diagnostics alarm is generated and the ERROR LED flashes for each diagnostics event on
the module. The diagnostics alarms can be read out in the diagnostics buffer of the CPU, for
example. You can evaluate the error codes with the user program.
If the module is operated distributed with PROFIBUS DP in an ET 200MP system, you have
the option to read out diagnostics data with the instruction RDREC or RD_REC using data
record 0 and 1. The structure of the data records is available on the Internet in the "Manual
for interface module IM 155-5 DP ST (6ES7155-5BA00-0AB0)".
Table 5- 4 Diagnostics alarms, their meaning and corrective measures
Diagnostics alarm
Short-circuit to ground
Wire break
Overflow
Underflow
Parameter assignment error
Load voltage missing
30
Error code Meaning
1 Overload at output
H
Short-circuit of output Q
6 Encoder circuit impedance too high
H
Wirebreak between the module and
actuator
Channel not connected (open)
7 The output value set by the user pro-
H
gram exceeds the valid rated
range/overshoot range.
8 The output value set by the user pro-
H
gram undershoots the valid rated
range/undershoot range.
10
The module cannot evaluate pa-
•
H
rameters for the channel
Incorrect parameter assignment.
•
11 Supply voltage L+ of the module is
H
missing
Remedy
Eliminate overload
to M Eliminate the short-circuit
V ANA
Use a different actuator type or
modify the wiring, for example, use
cables with larger cross-section
Connect the cable
Disable the channel ("output
•
type" parameter)
Connect the channel
•
Correct the output value
Correct the output value
Correct the parameter assignment
Connect supply voltage L+ to
module
Analog Output Module AQ 4xU/I HF (6ES7532-5ND00-0AB0)
Manual, 03/2016, A5E36633205-AA