Siemens SIMATIC NET Operating Instructions Manual page 22

Operator control (hardware)
4.1 Setting compatibility
DIL switch S7 (compatibility) in position 1
The following table shows the meaning of the individual DIL switches for the compatibility
mode (S7=1).
SINEC L2FO
OLM / P3 and OLM / P4
S6 /P4: Output Pow-
er CH4
Standard
0
High
1
S5 Output Power CH3
0 Standard
1 High
S4 Reserved
S3 Reserved
S2 Redundancy
0 Off
1 On
S1 Mode
0 Linear bus/ring
1 Linear bus
S0 Reserved
S8 Reserved
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Compatibility with SINEC L2FO OLM / P3, -P4, -S3, -S4, -S3-1300, -S4-1300
is turned on.
If the DIL switch S7 is set to position 1, the functional compatibility with
SINEC L2 optical link modules SINEC L2FO OLM / P3, OLM / P4, OLM / S3,
OLM / S4, OLM / S3-1300 and OLM / S4-1300 is turned on. This mode is
required when these modules are used in a mixed configuration with OLM
V4.
Switch the S7 switch to position 1 only when the PROFIBUS OLM is used as
a replacement or expansion device in existing networks with SINEC L2FO
OLMs and a direct optical link is required.
SINEC L2FO
OLM / S3 and OLM / S4
/P3: S6 /P4: Output Pow-
er CH4
Reserved
Standard
0
High
1
S5 Output Power CH3
0 Standard
1 High
S4 Reserved
S3 Distance
0 Extended
1 Standard
S2 /S4:
Redundancy
0 Off
1 On
Monitor S1 Mode
On 0 Linear bus/ring
Off 1 Linear bus
S0 Reserved
S8 Reserved
SINEC L2FO
OLM / S3-1300 and OLM / S4-1300
/P3: S6 Reserved
Reserved
S5 Reserved
S4 Reserved
S3 Distance
0 Extended
1 Standard
/S3: S2 /S4-1300:
Reserved Redundancy
0 Off
1 On
Monitor S1 Mode
On 0 Linear bus/ring
Off 1 Linear bus
S0 Reserved
S8 Reserved
Operating Instructions, 01/2020, C79000-G8976-C270-06
/S3-1300:
Reserved
Monitor
On
Off
Optical link module