Interrupts/diagnostics alarms
5.3 Alarms
I/O device digital outputs DQ 8x24VDC/0.5A M12-L 8xM12 (6ES7142-6BG00-0BB0)
Equipment Manual, 07/2020, A5E46570894-AA
29
5.3.2
Maintenance events
Triggering of a maintenance event
The PROFINET interfaces of the ET 200eco PN M12-L support the diagnostic concept and
maintenance concept in PROFINET according to the IEC 61158-6-10 standard. The goal is to
detect and remove potential problems as soon as possible.
The I/O device signals a maintenance event to the higher-level diagnostic system on the
following event:
Table 5- 6
Triggering of a maintenance event
Maintenance alarm
Error code
Event
Meaning
Maintenance demanded
MT/IO LED is lit
2
H
Undervoltage
Supply voltage 1L+ is below the tolerance limit.
System alarms in STEP 7
The maintenance information is generated in STEP 7 with the following system alarms:
•
Maintenance demanded - indicated for each port by a yellow wrench icon
in the
device view or in the hardware configuration.
You can find additional information in the STEP 7 online help.
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