Notes On Using This Manual - Siemens S5-155U System Manual

Notes on Using this Manual

CPUs available
Slots
System Manual
C79000-D8576-C199-03
The S5-135U/155U PLC is a member of the family of SIMATIC S5
programmable (logic) controllers. The controller can be used in single
and in multiprocessor operation with up to four CPUs. In
multiprocessor operation, each CPU processes its individual user
program independently of the other CPUs (multi-computing).
The following are available as CPUs:
for fast word and binary signal processing,
CPU 948
especially fast double-word and floating point
processing, and for large programs with a high
storage requirement; programming in STEP 5.
When you use a CPU 948, you have an S5-155U
PLC.
for fast word and binary signal processing and for
CPU 928B
communication; programming in STEP 5.
for fast binary signal processing and for word
CPU 928
processing; programming in STEP 5.
for word processing
CPU 922
(computing, controlling, monitoring, signalling);
(R processor)
programming in STEP 5.
You can combine the CPUs arbitrarily at the CPU slots in the central
controller:
CPU
CPU 948/CPU 928B/CPU 928
CPU 922
1
Slot Requirement
2 slots
1 slot
1 - 1