Siemens SIMATIC User Manual

Principles of analog modules
5.8 Diagnostics of analog modules
S7-300 Module data
296 Manual, 06/2017, A5E00105505-AJ
5.8.1 Diagnostics messages of analog input modules
Overview of the diagnostics messages of analog input modules
The table below provides an overview of the diagnostics messages of analog input modules.
Table 5- 44 Diagnostics 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 Diagnostic 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- 45 Diagnostic messages of analog output modules
Diagnostic 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
Wire-break*
SF
Channel
yes
* Not with the SM 332, AO 4 x 16 bit, isochrone
Note
The detection of errors which are indicated in programmable diagnostic messages requires
appropriate configuration of the analog module in
STEP 7 .

Siemens SIMATIC Specifications

General

Brand	Siemens
Model	SIMATIC
Category	Control Unit
Language	English