Diagnostics Alarms - Siemens SIMATIC ET 200SP Manual

5.3

Diagnostics alarms

A diagnostics alarm is generated and the DIAG-LED flashes on the module for each
diagnostics event. You can read out the diagnostics alarms, for example, in the diagnostics
buffer of the CPU. You can evaluate the error codes with the user program.
Table 5- 5 Diagnostics alarms, their meaning and remedies
Diagnostics alarms
Wire break
Violation of high limit
1
Violation of low limit
1
Error
Parameter assignment
error
Supply voltage missing
Reference channel
error (reference junc-
tion)
Analog input module AI 4xRTD/TC 2-/3-/4-wire HF (6ES7134-6JD00-0CA1)
Manual, 09/2018, A5E03573289-AE
Error code Meaning
6 Resistance of sensor circuit too high
H
Wire break between the module and sen-
sor
Channel not connected (open)
7 Value lies above the overrange.
H
Wire break
2
8 Value lies below the underrange.
H
9 Internal module error has occurred (diag-
H
nostics alarm on channel 0 applies to the
entire module).
10 The module cannot evaluate parameters
H
for the channel.
Incorrect parameter assignment.
11 Missing or insufficient supply voltage L+
H
15 Reference temperature of the reference
H
junction for the TC channel being operat-
ed with compensation is invalid.
Interrupts/diagnostics alarms
5.3 Diagnostics alarms
Remedy
Use a different sensor type or modify
the wiring, for example, using cables
with larger cross-section
Connect the cable
Deactivate diagnostics
•
Connect or deactivate the channel
•
Correct module/sensor interplay
See Wire break
Correct module/sensor interplay
Replace module
Correct the configuration (compari-
•
son of preset and actual setup).
Correct the parameter assignment
•
(diagnostics wire break set only
with the permitted measuring rang-
es).
Check supply voltage L+ on the
•
BaseUnit
Check BaseUnit type
•
Check BaseUnit type
•
Select correct reference junction
•
through parameter assignment
Check whether the reference junc-
•
tion (reference channel of the
group 0, 1, 2, 3) is only assigned
once as the sender in the entire
setup.
3
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