Step 1; Step 2 - Siemens S5-155U System Manual

Starting the Multiprocessor Operation

Step 1

Step 2

6 - 8
The individual actions are explained in more detail in the following.
Setting the number of occupied CPU slots on the coordinator:
923A Coordinator
Number of CPUs used
2
3
4
923C Coordinator
Coded by inserting only one DIL switch S1.4, S1.5 or S1.6 in the
front plate recess: (see Figure 6-2)
DIL S. on off
S1.1 x
S1.2 x
S1.3 x
S1.4 x
S1.5 x
S1.6 x
1)
Setting when delivered
Setting the communication flag areas:
IF...
you use you must mask out these areas (blocks) on
communication flag the coordinator without fail, to avoid
areas on CPs (please duplicated addressing of the communication
consult the relevant memory.
manuals),
The 256 communication flag bytes can be
masked out in groups of 32. You do this by
removing jumpers at coding socket EP 7 on
Coordinator A (see Figure 6-1 for location)
or EP 60 on Coordinator C (see Figure 6-2).
Jumper(s) at EP 62
1)
7 - 10; 8 - 9
7 -10
8 - 9
Effect
–
–
Enable test mode
No. of occupied CPU slots = 2
No. of occupied CPU slots = 3
No. of occupied CPU slots = 4
THEN...
System Manual
C79000-B8576-C199-03
1)