Reaction When, With The Bus Running You Switch The S5-95U To Stop Or Run - Siemens SIMATIC S5 Manual

S5-95U – starting ET 200
12.3.3 Reaction when, with the bus running, you switch the S5-95U to
STOP or RUN
Precondition
Response of bus
system
Table 12-3 Reaction when, with the bus running, you switch the S5-95U to STOP or RUN
Preconditions
S5-95U as DP
master
RUN STOP You cannot access the inputs/outputs of the distributed I/O system.
STOP RUN You can access the inputs/outputs of the distributed I/O system.
12-8
All DP slaves on the bus are addressable. If not, you must make provision for
the reactions to interruption of bus communication and failure of a DP slave
(see Section 12.3.4).
The table below shows you how the system responds if, with the bus running,
the mode selector switch of the S5-95U is actuated to switch to STOP or
RUN.
S5-95U
PS
S5-95U as DP master
Reactions
ET 200 Distributed I/O System
DP slaves
Outputs are set to
"0".
Inputs are read
Outputs are Outputs are
updated
EWA 4NEB 780 6000-02a