Diagnostics Alarms - Siemens Simatic ET 200SP Manual

5.3

Diagnostics alarms

Diagnostics alarms
A diagnostics alarm is output for each diagnostics event and the DIAG LED on the module
flashes. The diagnostics alarms can, for example, be read from the diagnostics buffer of the
CPU. You can evaluate the error codes with the user program.
Table 5- 4 Diagnostics alarms, their meaning and remedies
Diagnostics alarm Error code
Channel temporarily 1F
unavailable
Short-circuit 1
Overtemperature 4
Wire break 6
Violation of high limit 7
Violation of low limit 8
Error 9
Parameter 10
assignment error
Load voltage missing 11
Analog output module AQ 2xU/I HF (6ES7135-6HB00-0CA1)
Manual, 02/2014, A5E33062529-AA
Meaning
Firmware update is being performed. Channel
H
0 applies to the entire module. The module is
currently not performing any measurements.
The channel is currently being calibrated.
Short-circuit of the actuator supply
H
Thermal overload of the I/O module
H
Actuator circuit resistance too high
H
Wire break between the module and actuator
Channel not connected (open)
The output value specified by the user
H
program exceeds the overrange.
The output value specified by the user
H
program falls below the underrange.
Internal module error has occurred
H
(diagnostics alarm on channel 0 applies to the
entire module).
The module cannot evaluate parameters for
H
the channel: Module plugged in does not
match the configuration.
Incorrect parameter assignment.
Missing or insufficient supply voltage L+
H
Interrupts/diagnostics alarms
5.3 Diagnostics alarms
Remedy
–
Correct the process wiring
Correct the process wiring
Use a different actuator type or
change the wiring, for example, use
cables with larger cross-section
Connect the cable
Deactivate the channel
•
("Measurement type" parameter)
Connect the channel
•
Correct the output value
Correct the output value
Replace module
Correct the configuration
•
(comparison of preset and actual
setup).
Correct the parameter
•
assignment (diagnostics wire
break set only with the permitted
measuring ranges).
Check supply voltage L+ on the
•
BaseUnit
Check BaseUnit type
•
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