Digital modules
3.28 Relay output module SM 322; DO 16 x Rel. AC 120/230 V; (6ES7322-1HH01-0AA0)
S7-300 Automation System Module data
3-94 Manual, 08/2006, A5E00105505-04
Reaction to a shutdown of the power supply
Note
The internal 200-ms buffer capacitance discharges sufficient power after power off to allow
the user program to set a defined relay state.
Wiring and block diagrams of SM 322; DO 16 x Rel. AC 120/230 V
0
/
0
0
1
1
9
① Channel number
② Status display - green
③ Backplane bus interface