Siemens SIMATIC NET PROFIBUS Instruções de Operação descarregar pdf (Página 29)

Product Characteristics

4.2 Installation

SIMATIC NET PROFIBUS Optical Link Module OLM V4.0

Operating Instructions, 01/2013, C79000-G8976-C270-03

4.2.3 Setting compatibility, mode and transmit power

Please note the following:

The OLM must be switched off when changing the mode. You can achieve this for example

by disconnecting the 5-pin terminal block.

4.2.3.1 Setting the compatibility

With DIL switch S7, you can enable or disable functional compatibility with devices of the

previous generation SINEC L2FO OLM / P3, -P4, -S3, -S4, S3-1300 and S4-1300. The

default setting of S7 is position 0 (compatibility disabled).

DIL switch S7 (compatibility) in position 0:

Compatibility with SINEC L2FO OLM / P3, -P4, -S3, -S4, -S3-1300, -S4-1300 disabled

DIL switch S7 (compatibility) in position 1:

Compatibility with SINEC L2FO OLM / P3, -P4, -S3, -S4, -S3-1300, -S4-1300 enabled

By setting DIL switch S7 to 1, the functionality compatibility with optical link modules SINEC

L2FO OLM / P3, OLM / P4, OLM/S3, OLM/S4, OLM/S3-1300 and OLM/S4-1300 is enabled.

This mode is necessary for mixed operation of these modules with the OLM V4.0. Only set

the S7 switch to position 1, if the PROFIBUS OLM is used as replacement or extension

device in existing networks with SINEC L2FO OLM and a direct optical connection is

required. To interconnect OLM V3 and OLM V4.0, switch S7 must be set to position 0

because these devices are directly compatible.

The effects of the DIL switches involving compatibility mode are described in Table 4-2.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 63 64

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