Siemens SIMATIC ET 200AL, System Manual

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Interrupts/diagnostic alarms
5.2 Interrupts
IO-Link digital output module DQ 8x24VDC/2A 8xM12 (6ES7142-5AF00-0BL0)
Equipment Manual, 08/2021, A5E47926730-AB
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5.2 Interrupts
The DQ 8x24VDC/2A 8xM12 IO-Link digital output module supports diagnostic interrupts.
Diagnostic interrupt
The digital output module generates a diagnostic interrupt at the following events:
•
Short-circuit of outputs to ground
• Load voltage 2L+ missing or too low
5.3 Diagnostics alarms
For each diagnostic event, a diagnostics alarm is issued and the LED DIAG flashes red on the
digital output module. You can read out the diagnostics alarms, for example, from the status
of the IO-Link master. You can evaluate the error codes with the user program.
Table 5- 4 Diagnostics alarms, their meanings and corrective measures
Diagnostics alarm Error code Meaning Remedy
Short-circuit 0x7711 Short-circuit of an output to
ground
Eliminate the short-circuit
Load voltage 2L+
missing
0x5112 Load voltage 2L+ missing or too
low
• Check the supply voltage
• Check the module