Diagnostic Data Of The Digital Input Modules As Of Byte 2 - Siemens SIMATIC S7-400 Reference Manual

Automation system module data

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Diagnostic data of the digital input modules as of byte 2

The structure and contents of the different bytes of the diagnostic data for special digital input

modules are described below. General rule: When an error occurs, the bit concerned is set to

You will find a description of possible error causes and appropriate remedies in the section

"Diagnostics of the modules".

Bytes 2 and 3 of the SM 421; DI 16 x DC 24 V

S7-400 Automation System Module Data

Reference Manual, Ausgabe 11/2016, A5E00850736-08

Bytes 2 and 3 of the diagnostic data of the SM 421; DI 16 x DC 24 V

Module-internal supply voltage failure

Operating mode 0: RUN; 1: STOP

Hardware interrupt lost

B.3 Diagnostic data of the digital input modules as of byte 2

Diagnostic data of signal modules

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