Siemens Simatic S7-400

Siemens Simatic S7-400

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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 Diagnostic messages of the digital modules

Diagnostic message LED Scope of diagnostics Programmable

Module error INTF/EXTF Module No

Internal error INTF Module No

External error EXTF Module No

Channel error INTF/EXTF Module No

External auxiliary voltage missing EXTF Module No

Front connector missing EXTF Module No

No module parameters INTF Module No

Incorrect parameters INTF Module No

Channel information available INTF/EXTF Module No

STOP mode - Module No

Internal voltage failure INTF Module No

EPROM error INTF Module No

Hardware interrupt lost INTF Module No

Parameter assignment error INTF Channel No

Short-circuit to M EXTF Channel Yes

Short-circuit to L+ EXTF Channel Yes

Wire break EXTF Channel Yes

Fuse blown INTF Channel Yes

Sensor supply missing EXTF Channel/channel

group

Yes

Load voltage L+ missing EXTF Channel/channel

group

Yes

Note

Prerequisite for detecting errors indicated by programmable diagnostic messages is an

appropriate configuration of the digital module in STEP 7.

Digital modules

4.4 Diagnostics for digital modules

S7-400 Automation System Module Data

90 Reference Manual, Ausgabe 11/2016, A5E00850736-08

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