Representation of the analog values of analog modules
5.8 Diagnostics functions of analog modules
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
5-33
5.8.1 Diagnostic messages of analog input modules
Overview of the diagnostic messages of analog input modules
The table below provides an overview of the diagnostic messages of analog input modules.
Table 5-42 Diagnostic messages of analog input modules
Diagnostics message LED Scope of diagnostics programmable
External load voltage missing SF Module No
Configuration / programming error SF Channel Yes
Common-mode error SF Channel Yes
Wirebreak SF Channel Yes
Underflow SF Channel Yes
Overflow SF Channel Yes
5.8.2 Diagnostics messages of analog output modules
Overview of the diagnostic messages of analog output modules
The table below provides an overview of the diagnostic messages of analog output modules.
Table 5-43 Diagnostics messages of analog output modules
Diagnostics message LED Scope of diagnostics programmable
External load voltage missing SF Module No
Configuration / programming error SF Channel Yes
Short-circuit to M SF Channel Yes
Wirebreak SF Channel Yes
Note
Prerequisite for the detection of errors indicated by programmable diagnostic messages is
an appropriate configuration of the analog module in
STEP 7
.
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