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Siemens S5-135U/155U User Manual

Page 286

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6-24

System Manual

C79000-G8576-C199-06

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).

on off

on

on

off

off

Figure 6-10

DIL Switches on the COR 923C (Settings when Delivered)

You set the number of CPUs present in the PLC with the 3 DIL switches S1.4
to S1.6. You may only set one switch.

The factory setting is “Number of CPUs = 2” (see below).

Factory setting:

Switch

Setting

Meaning

on

off

S1.1

x

S1.2

x

S1.3

x

Test mode (see also Sec. 6.3)

S1.4

x

Number of CPUs = 2

S1.5

x

Number of CPUs = 3

S1.6

x

Number of CPUs = 4

Setting the DIL
Switches

Coordination
Section (Number
of CPUs)

Multiprocessor Operation/Coordinators