Siemens Simatic S7-300

Digital modules
3.24 Digital output module SM 322; DO 8 x DC 24 V/ 0.5 A; with diagnostics interrupt; (6ES7322-8BF00-0AB0)
S7-300 Automation System Module data
3-80 Manual, 08/2006, A5E00105505-04
3.24.3 Reaction of SM 322; DO 8 x DC 24 V/0.5 A
Influence of the operating state and supply voltage on output values
The output values of SM 322; DO 8 x DC 24V/0.5 A are determined by the CPU's operating
state and the module's power supply.
Table 3-21 Influence of the CPU operating state and of the supply voltage L+ of SM 322; DO 8 24 VDC/0.5 A on output
values.
CPU
operating state
Power supply L+ at digital module Output value
of the digital module
L+ present CPU value RUN
L+ missing 0 signal
L+ present Substitution value/last value (default = 0
signal)
POWER ON
STOP
L+ missing 0 signal
L+ present 0 signal POWER OFF -
L+ missing 0 signal
Reaction to power failure
Failure of the power supply to SM 322; DO 8 x DC 24V/0.5 A is always indicated at the
module's SF LED. This information is also available on the module (entry in diagnostics
data.)
Triggering of diagnostics interrupts is determined by the parameter settings (see the next
chapter 3.24.4
Interrupts of SM 322; DO 8 x DC 24/0.5 A ).
See also
Parameters of SM 322; DO 8 x DC 24 V/0.5 A (Page 3-77)