Maintenance Events - Siemens SIMATIC ET 200SP IM 155-6 PN/2 HF Manual

Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Causes of error and troubleshooting
The causes of error and remedies for the diagnostic alarms are described in the manuals for
I/O modules (http://support.automation.siemens.com/WW/view/en/55679691/133300) in the
section, "Interrupts, error messages, and system events".
See also
Channel diagnostics (Page 43)
5.3.2

Maintenance events

Triggering of a maintenance event
The PROFINET IO interfaces of the interface module support the diagnostic concept and
maintenance concept in PROFINET IO according to the IEC 61158 Type 10 standard. The
goal is to detect and remove potential problems as soon as possible.
For the interface module, maintenance events signal to the user when a plant component
must be checked or replaced.
The CPU interrupts user program execution and executes the diagnostic error interrupt OB.
The event that triggered the maintenance event is entered in the start information of the
diagnostic error interrupt OB.
The interface module signals a maintenance event to the higher-level diagnostic system in
the case of the following event:
Table 5- 6 Triggering of a maintenance event
Maintenance alarm
Maintenance demanded
LED MAINT is lit.
System alarms in STEP 7 (TIA Portal)
The maintenance information is generated in STEP 7 (TIA Portal) with the following system
alarms:
● Maintenance demanded - indicated for each port by a yellow wrench icon
device view or in the hardware configuration.
You can find more information in the STEP 7 online help.
42
Event Alarm/Meaning
Synchronization
No synchronization frame received.
•
loss
No synchronization frame was received by the sync master within the
timeout period after parameter assignment or during operation.
Successive synchronization frames are located outside permitted
•
limits (jitter).
Undervoltage
Diagnostics Undervoltage
•
If the supply voltage of the interface falls below the value 19.2 V DC,
this diagnostics is reported as incoming Maintenance demanded.
Interface module IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0)
Manual, 10/2018, A5E03915895-AH
in the