Siemens SIMATIC - Page 149

Diagnostic Data of Fail-Safe Modules
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
149
Channel-Specific Diagnostics Starting at Byte 20 to Byte 31 for F-Switch
The channel-specific diagnostics start in byte 20 of the diagnostic data. Four bytes of
diagnostic information are provided per channel.
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Figure A-12 Channel-Specific Diagnostics Starting at Byte 20 of the Diagnostic Data of the F-Switch
Due to the different numbers of channels of the F-modules, data record 1 has differing
lengths:
8/16 F-DI 40 bytes
4/8 F-DI/4 F-DO 44 bytes
F-Switch 32 bytes