Siemens SIMATIC NET PROFIBUS, Руководство пользователя

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4 Setting Up
Version 1.0 8/00
4.3 Setting compatibility, operating mode and transmitting power
4.3.2 Setting the operating mode
Attention! The following details only apply for the S7 default position (S7 = 0)!
The DIL switch S0 is used to set the operating mode of the electrical port CH1 .
The DIL switches S1 and S2 are used to set the operating mode of the optical port CH2 .
The DIL switches S3 and S4 are used to set the operating mode of the optical port CH3 .
S3 and S4 do not have a function on OLMs with only one optical interface.
4.3.2.1 Setting the operating mode of the electrical port (CH1)
Operating mode ”Electrical Port with segment monitoring“
CH1 is activated in this operating mode if S0 is in Position 0.
Operating mode ”Electrical Port without segment monitoring“
CH1 is activated in this operating mode if S0 is in Position 1.
Please note that this operating mode should only be set in the star segment of the star topology.
4.3.2.2 Setting the operating mode of the optical ports (CH2, CH3)
The operating mode can be set individually for each optical port. Combinations of the operating modes "Line with
optical fiber link monitoring" and "Line without optical fiber link monitoring" are also possible.
Note that the operating mode of the two optical ports which are connected by the fiber line must always have the
same settings! The operating mode "Redundant optical ring" must always be set at both of the optical ports.
Operating mode ”Line with optical fiber link monitoring and segmentation“
CH3 is activated in this operating mode if S3 and S4 are in Position 0.
CH2 is activated in this operating mode if S1 and S2 are in Position 0.
Operating mode ”Line without optical fiber link monitoring“
CH3 is activated in this operating mode if S3 is in Position 1 and S4 is in Position 0.
CH2 is activated in this operating mode if S1 is in Position 1 and S2 is in Position 0.
0 1
S 6
S 7
S 1
S 2
S 4
S 5
S 3
CH 3
CH 2
CH 3
CH 2
S 0 CH 1
0 1
S 6
S 7
S 1
S 2
S 4
S 5
S 3
CH 3
CH 2
CH 3
CH 2
S 0 CH 1
0 1
S 6
S 7
S 1
S 2
S 4
S 5
S 3
CH 3
CH 2
CH 3
CH 2
S 0 CH 1
0 1
S 6
S 7
S 1
S 2
S 4
S 5
S 3
CH 3
CH 2
CH 3
CH 2
S 0 CH 1