Siemens SIMATIC - Page 166

Digital modules
3.26 Digital output module SM 322; DO 16 x UC 24/48 V; (6ES7322-5GH00-0AB0)
S7-300 Module data
166 Manual, 06/2017, A5E00105505-AJ
System diagnostics for SM 322;DO 16 x UC24/48 V:
Table 3- 27 System diagnostics for SM 322 DO 16 x UC 24/48 V
System diagnostics byte 1:
Technical data
D0:
Module fault
yes
D1: Internal fault yes
D2:
External fault
yes
D3:
Channel fault
no
D4:
External auxiliary voltage missing
yes
D5:
Front connector missing
no
D6:
Module not programmed
yes
D7:
Incorrect parameters
yes
System diagnostics byte 2:
D0..D3:
Module class
1111
D4:
Channel information available
no
D5:
User information available
no
D6:
Diagnostics interrupt from substitute
no
D7:
Reserve
System diagnostics byte 3:
D0:
Wrong/missing memory module
no
D1:
Communication error
no
D2:
RUN/STOP operating state
no
D3:
Watchdog timeout
yes
D4:
Internal power failure
no
D5: Battery 1 low no
D6:
Backup system failure
no
D7:
Reserve
System diagnostics byte 4:
D0:
Rack failure
no
D1:
Processor failure
yes
D2:
EPROM fault
yes
D3:
RAM fault
yes
D4:
DAC error
no
D5:
Fuse blown
no
D6:
Process interrupt lost
no
D7:
Reserve