Diagnostics Messages Of The Sm 338, Causes Of Errors And Remedial Measures - Siemens SIMATIC S7-300 Reference Manual
Programmable logic controllers module data
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Causes of errors and remedial measures
Table 5-6
Diagnostics Messages of the SM 338, Causes of Errors and Remedial Measures
Diagnostics
Message
Module fault
Internal error
External error
Channel error present
External auxiliary
supply missing
Module not
parameterized
Wrong parameters
Channel information
present
Watchdog tripped
Channel error present
Configuration /
parameterization error
External channel error
(encoder error)
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Possible Error Cause
An error detected by the module has
occurred.
Module has detected an error within
the automation system.
Module has detected an error outside
of the automation system.
Indicates that only specific channels
are faulty.
The power supply L+ to the module is
missing
Module requires information whether it
should work with parameters preset by
the system or with your parameters.
One parameter or the combination of
parameters is not plausible
Channel error present; module can
provide additional channel information.
Temporary high electromagnetic
interference
An error detected by the module has
occurred at the encoder input.
Illegal parameter had been transferred
to module
Broken wire in encoder cable, encoder
cable not connected or encoder
defective.
Special Signal modules
Remedy
Feed supply L+
Message present after network active
until transfer of the parameters by the
CPU complete; parameterize module if
necessary.
Reassign module parameter
Eliminate interference
Reassign module parameter
Check connected encoder
5-19
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