Siemens S5-135U/155U System Manual page 286

Multiprocessor Operation/Coordinators
Setting the DIL
Switches
Note
On switch S1, the On position is on the left; on switches S2 and S3, however,
it is on the right (see Figure 6-10).
Figure 6-10
Coordination You set the number of CPUs present in the PLC with the 3 DIL switches S1.4
Section (Number
to S1.6. You may only set one switch.
of CPUs)
The factory setting is "Number of CPUs = 2" (see below).
Factory setting:
6-24
on off
off
off
DIL Switches on the COR 923C (Settings when Delivered)
Switch Setting
on off
S1.1 x
S1.2 x
S1.3 x
S1.4 x
S1.5 x
S1.6 x
on
on
Meaning
–
–
Test mode (see also Sec. 6.3)
Number of CPUs = 2
Number of CPUs = 3
Number of CPUs = 4
C79000-G8576-C199-06
System Manual