Siemens SIMATIC NET PROFIBUS manual General information about setting up

4 Setting Up 4.2 General information about setting up

4.2 General information about setting up

Select the network topology which is most suitable for your requirements. The modules can then be put into operation in the following steps:

Check and adjust (if necessary) the DIL switch

Note: The DIL switches may only be operated in an ambient temperature of between 0°C and +60°C. This also applies to the OLM/G12-EEC.

Mount the modules

Connect the power supply and the signaling contacts

Connect the electric RS 485 bus line with pre-mounted bus connector

Connect the optical bus lines

0	1
S7
S6
S5
S4
S3
S2
S1
S0

Compatibility

Out. Power CH 3

Out. Power CH 2

Mode CH 3

Mode CH 2

Mode CH 1

L1+

F1

M

F2

L2+

+24 V

Fault

+24 V *

NEC Class 2 24VDC, 200mA

Fig. 5: Top view of the Module OLM – location of the DIL switches and terminal block for the operating power supply/signaling contacts.

The illustration shows the factory settings of the DIL switches (switches S0, S1, S2, S3, S4 and S7 in Position "0", switches S5 and S6 in Position "1").

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