Siemens SIMATIC ET 200AL, System Manual

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Interrupts/diagnostic alarms
5.2 Interrupts
DI 8x24VDC 4xM12 (6ES7141-5AF00-0BA0)
20
Equipment Manual, 08/2021, A5E36680963-AB
5.2 Interrupts
The DI 8x24VDC 4xM12 digital input module supports diagnostic interrupts.
Diagnostic interrupt
The digital input module generates a diagnostic interrupt at the following events:
•
Short-circuit of encoder supply to ground
5.3 Diagnostics alarms
For each diagnostic event, a diagnostics alarm is issued and the DIAG LED flashes red on the
digital input module. 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- 3 Diagnostics alarms, their meanings and corrective measures
Diagnostics
alarm
Error code Meaning Remedy
Short-circuit 1
H
Short-circuit encoder supply to
ground
Eliminate the short-circuit