Siemens SIMATIC S5 Manual page 206

Process
Malfunctions are detected as follows:
web. The 10 BEROS are connected to the IPs' 24 V inputs.
Q
0.0
The drives are controlled as follows:
The CPU forwards the Enable signal for the drives to an 1P 265 (slot 3) in the form of a bit
parameter. The 1P 265 user program logically combines the Enable signal with the process signals
from BEROS 6 to 10 or with the other 1P's RLO (slot 2), and immediately shuts down the four drive
motors via four digital outputs in the event of a malfunction. The CPU is informed of the shutdown
via an output bit parameter. Forwarding of the shutdown info is staggered in time, as data is
transferred cyclically between IP and CPU.
EWA 4NEB 812 6730-02a
i
0.4
0.3
12-7