Siemens SIMATIC NET - Operator Control and Hardware Settings; Setting Device Compatibility

Optical link module
Operating Instructions, 01/2020, C79000-G8976-C270-06
21
Operator control (hardware)
4
Note
The OLM must be turned of
f when you switch over the mode.
To achieve this, for example unplug the 5
-terminal block.
Note
Use only the DIP switch settings described in this section. If you use other DIP switch
settings, the correct operation of the OLMs is not guaranteed.
UL/FM Class I, Div.2 and ATEX/IECEx Zone 2
WARNING
Explosive atmosphere
Do not press the DIP switch if there is a potentially explosive atmosphere.
4.1 Setting compatibility
With the S7 DIL switch, you enable or disable functional compatibility with devices of the
previous generation SINEC L2FO OLM / P3, -P4, -S3, -S4, S3-1300 and S4-1300.
The factory setting for S7 is position 0 (compatibility turned off).
DIL switch S7 (compatibility) in position 0
Compatibility with SINEC L2FO OLM / P3, -P4, -S3, -S4, -S3-1300, -S4-
1300
is turned off.
To interconnect OLM V3 and OLM V4, the S7 switch must be in position 0
because these devices are compatible with each other.