Siemens SIMATIC S7-300 Reference Manual page 149
Programmable logic controllers module data
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- Manual (676 pages) ,
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Table 3-17 System diagnostics for SM 322 DO 16 x UC 24/48 V
System diagnosis byte 2:
D0..D3
D4:
D5:
D6:
D7:
System diagnosis byte 3:
D0:
D1:
D2:
D3:
D4:
D5:
D6:
System diagnosis byte 4:
D7:
D0:
D1:
D2:
D3:
D4:
D5:
D6:
D7:
Channel-specific diagnosis byte
D0:
D1:
D2:
D3:
D4:
D5:
D6:
D7:
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Module Type
Channel information available
User information available
Diagnostic alarm from substitute
Spare
Memory module incorrect/missing
Communication error
RUN/STOP mode
Time monitoring triggered
Internal power failure
Battery 1 empty
Complete backup failure
Spare
Rack failure
Processor failure
EPROM error
RAM error
DAC error
Blown fuse
Hardware interrupt lost
Spare
Parameter setup error
Grounding error
Short-circuit to P
Short-circuit to M
Wire-break
Spare
Auxiliary supply missing
Overtemperature
Digital Modules
1111
No
No
No
No
No
No
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
3-65
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