Siemens SIMATIC ET 200AL, System Manual

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Interrupts/diagnostics alarms
5.2 Interrupts
IO-Link digital input/digital output module DIQ 4+DQ 4x24VDC/0,5A 8xM8 (6ES7143-5BF00-0BL0)
Equipment Manual, 08/2021, A5E47925743-AB
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5.2 Interrupts
The DIQ 4+DQ 4x24VDC/0,5A 8xM8 IO-Link digital input / digital output module supports
diagnostic interrupts.
Diagnostic interrupt
The digital input/digital output module generates a diagnostic interrupt at the following
events:
•
Short-circuit of encoder supply to ground
• 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 DIAG LED flashes red on the
digital input/output module.
You can read out the diagnostics alarms, for example, from the port 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 1 0x7710 Short-circuit of an encoder sup-
ply to ground
• Eliminate the short-circuit
0x7711 Short-circuit of an output to
ground
Load voltage 2L+
missing
0x5112 Load voltage 2L+ missing or too
low
• Check the supply voltage
• Check the module
1
= If a short-circuit of the encoder supply to ground is detected, the diagnostic alarm "Short-circuit" is
always output. This alarm is output even if all channels are configured as outputs.