Diagnostic Messages Of The Digital Modules - Siemens SIMATIC S7-400 Reference Manual

Digital modules
4.4 Diagnostics for digital modules
4.4.2

Diagnostic messages of the digital modules

Overview
The table below gives an overview of the diagnostic messages for the digital modules with
diagnostics capability.
You can find out which diagnostic message each module is capable of in the Appendix entitled
"Diagnostic data of the signal modules".
Table 4-6
Module error
Internal error
External error
Channel error
External auxiliary voltage missing
Front connector missing
No module parameters
Incorrect parameters
Channel information available
STOP mode
Internal voltage failure
EPROM error
Hardware interrupt lost
Parameter assignment error
Short-circuit to M
Short-circuit to L+
Wire break
Fuse blown
Sensor supply missing
Load voltage L+ missing
Note
Prerequisite for detecting errors indicated by programmable diagnostic messages is an
appropriate configuration of the digital module in STEP 7.
90
Diagnostic messages of the digital modules
Diagnostic message LED Scope of diagnostics
INTF/EXTF Module
INTF Module
EXTF Module
INTF/EXTF Module
EXTF Module
EXTF Module
INTF Module
INTF Module
INTF/EXTF Module
- Module
INTF Module
INTF Module
INTF Module
INTF Channel
EXTF Channel
EXTF Channel
EXTF Channel
INTF Channel
EXTF Channel/channel
group
EXTF Channel/channel
group
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
Programmable
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes