Reaction When Im 308-C Is Switched To Off, St Or Rn - Siemens SIMATIC S5 Manual

11.2.2 Reaction when IM 308-C is switched to OFF, ST or RN

Operating modes Table 11-2 illustrates the meanings of the various operating modes of the
of the IM 308-C
IM 308-C. Table 11-3 references these operating modes.
Note
When the IM 308-C changes its operating mode, there is a possibility that
consistency may be lost in data transferred while the change is in progress.
Table 11-2 Operating modes of the IM 308-C
Operating LEDs of the
mode IM 308-C
RN OF
1
RUN on off
2
CLEAR flashing off
STOP off flashing
OFF off on
1
: The mode selector switch position RN is not identical with the RUN mode.
2
: You can access the CLEAR mode when the mode selector switch on the IM 308-C is in the RN position and the CPU
is in STOP.
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
Meaning for the
DP slaves
The IM 308-C reads all inputs and sets
the outputs (normal operation).
The IM 308-C reads all inputs, but sets
all outputs to "0".
The IM 308-C does not exchange data
with the DP slaves.
The IM 308-C does not exchange data
with the DP slaves.
IM 308-C – starting ET 200
Meaning for the
token ring
The IM 308-C can receive the token
from another DP master and pass on
the token. th t k
The IM 308-C cannot receive the
token or pass it on.
11
11-7