5-27
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
You can execute the FORCE function with the load circuit turned on or off as
follows:
FORCE with load circuit turned off :You can observe the effect of the
forced outputs for digital modules by checking the output LEDs.
FORCE with load circuit turned on :You can observe the effect of the
forced outputs directly at the I/Os.
!
Caution
Setting outputs when the load circuit is turned on can result in dangerous
system states.
Set or reset outputs only under the circumstances listed in the following ta-
ble!
Table 5-9
Resetting Outputs with Load Circuit Turned On
Version/
Revision Level
Outputs are Reset ...
Outputs are not Reset ...
IM 308–B (as
from version 5)
When you call up the “MODULE
SELECTION” screen.
When you reset the outputs in the
“MODULE SELECTION” screen.
When you exit from the “MODULE
SELECTION” screen with <F8>
(EXIT).
When you power up the IM 308–B
master interface module (STOP to
RUN transition)
FORCE with Load
Circuit
ET 200U(DP Standard): Address Assignm.,Starting–Up, Diagnosing Faults Using COM ET 200
