Siemens S5-155U System Manual page 76

S5-135U/155U Central Controller
Slot No. 3 11 19 27 35 43 51 59 67 75 83 91 99 107 115 123 131 139 147 155 163
Characteristic
PG MUX
0
1)
possible
Interrupt source
(process interrupt)
Battery backup
24 V supply
15 V supply
4 - 6
Caution
Do not insert modules at slots which are not intended for them,
otherwise these or other modules may be destroyed.
The following table shows which slots have particular characteristics.
The manuals for the individual modules explain how these
characteristics can be utilized.
1 2 3 4
1)
The numbers indicate the station numbers for programmer (PG)
communication via PG multiplexers of the COR 923C.
The modular packaging technique allows variable configuration of a
CC with modules and its adaptation to the particular automation task.
The various modules carry out the following tasks:
• • CPU
The CPU processes the input signals of the PLC according to the
user program, and emits the results as output signals. The
following CPUs can be used in the S5-135U/155U PLC
-
CPU 948
- CPU 928B
- CPU 928
- CPU 922
• • Coordinators
By using a coordinator, you can configure the S5-135U/155U as a
multiprocessor controller with up to four task-oriented CPUs in
different combinations. Each CPU processes its program
independently of the others.
• • I/O modules
The I/O modules provide the link to the process.
• • IP module
The intelligent I/O modules (signal pre-processing modules)
off-load the CPU by independently executing compute-intensive
tasks such as controlling, counting and positioning.
5 6 7
C79000-B8576-C199-03
System Manual