Communication modules
6.3 GDM memory module CP52M0
SIMATIC TDC hardware
140
System Manual, 08/2017, A5E01114865-AL
Fault displays of CP52M0
Table 6- 12 Status and fault displays of CP52M0
LED display
Error states
H3
Flashing
Monitoring error
•
Non-critical error during initialization; normal operation may be started.
H4
Flashing
Initialization error
•
The start of normal operation is prevented if system initialization errors
were found.
Initialization error due to incorrect insertion of CP52M0.
=> The module must be inserted in slot 1.
H5
-
No function
H6
Flashing
System error
•
STOP operating state (fatal system fault): Hardware or software prob-
lems causing a program crash.
H7
Flashing
Communication error
•
Communication error:
Incorrect configuration of communication or communication connection
H8
Flashing
Task Manager error
The following errors are possible:
•
Cycle errors
A task could not be completed within the sampling time.
•
Task overflow
If the task is not assigned top priority, but needs to be restarted.
•
No free local buffer
The data buffer is no longer released. The task start will be skipped.
•
Software time monitoring
If the basic sampling time is not processed four times in succession. The
basic clock cycle timer is re-initialized with the configured basic sampling
time and processing continued.
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