Siemens Simatic M7-400 Reference Manual page 585

Bytes 4 to 10 of the SM 422; DO 32
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Byte 10
Figure B-12
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
24 VDC/0.5 A
7 6 5 4 3 2 1 0
0
Channel type B#16#72: digital output
7 0
7 0
7 6 5 4 3 2 1 0
Channel error, channel 0
Channel error, channel 1
...
Channel error, channel 6
Channel error, channel 7
7 6 5 4 3 2 1 0
Channel error, channel 8
Channel error, channel 9
...
Channel error, channel 14
Channel error, channel 15
7 6 5 4 3 2 1 0
Channel error, channel 16
Channel error, channel 17
...
Channel error, channel 22
Channel error, channel 23
7 6 5 4 3 2 1
Channel error, channel 25
...
Channel error, channel 30
Channel error, channel 31
Bytes 4 to 10 of the Diagnostic Data of the SM 422; DO 32 x 24 VDC/0.5 A
Diagnostic Data of the Signal Modules
Number of diagnostics bits that the module
outputs per channel: 8 bits long
Number of channels of the same
type in one module: 32 channels
0
Channel error, channel 24
B-11