Siemens Simatic S7-400

Siemens Simatic S7-400

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You can find out which diagnostic messages are possible with which modules in the Appendix

entitled "Diagnostic Data of the Signal Modules".

Table 5-43 Diagnostic messages of the analog input 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

Measuring range module incorrect/missing INTF Module No

Thermocouple connection error EXTF Module No

STOP mode - Module No

EPROM error INTF Module No

RAM error INTF Module No

ADC/DAC error INTF Module No

Hardware interrupt lost INTF Module No

Configuration / programming error INTF Channel No

Short-circuit to M EXTF Channel Yes

Wire break EXTF Channel Yes

Reference channel error EXTF Channel Yes

Underflow EXTF Channel Yes

Overflow EXTF Channel Yes

User connection not wired EXTF Channel No

Open conductor in + direction EXTF Channel No

Open conductor in - direction EXTF Channel No

Run time calibration error EXTF Channel No

Underrange or overrange EXTF Channel No

Open conductor in the current source EXTF Channel No

User calibration does not correspond to the param‐

eter assignment

EXTF Channel No

Note

A prerequisite for detecting the errors indicated by programmable diagnostic messages is that

you must have assigned parameters to the analog module accordingly in STEP 7.

Analog modules

5.17 Diagnostics functions of analog modules

S7-400 Automation System Module Data

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

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