Byte
Bit
Meaning
Byte 3
7
0
6
0
5
0
4
0
3
0
2
EPROM error
1
0
0
0
Bytes 4 to 10 of the SM 422; DO 32 x DC 24 V/0.5 A
Table B-13
Bytes 4 to 10 of the diagnostic data of the SM 422; DO 32 x DC 24 V/0.5 A
Byte
Bit
Meaning
Byte 4
7
0
6
Channel type B#16#72: digital output
5
4
3
2
1
0
Byte 5
7
Number of diagnostics bits that the module outputs per channel: 8 bits long
0
Byte 6
7
Number of channels of the same type in one module: 32 channels
0
Diagnostic data of signal modules
B.4 Diagnostic data of the digital output modules as of byte 2
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
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