Tension Electronics PFEA111/112, User Manual
Section 3.13.4 Commands through Profibus
3BSE029380R0101 Rev C 3-27
To bridge longer distances and bypass EMC interference, transmission with optical fiber
conductors (glass or plastic) is also specified.
Standard bus plug connectors are available for transmission with optical fiber conductors.
These connectors convert RS 485 signals to optical fiber conductor signals and vice versa.
(OLP = optical link plug).
In addition, repeaters are available to handle this signal conversion.
This gives you the option of switching between the two transmission techniques within
one system if necessary.
You can connect up to 126 stations to one Profibus system.
To be able to handle this number of participants on the bus, the bus system must be divided
into individual segments, containing maximum 32 stations each.
These segments are linked by repeaters.
x
3.13.4 Commands through Profibus
Profibus DP is available in PFEA112 (not in PFEA111).
“Zero set” is the only command that can be performed through Profibus in PFEA112.
Figure 3-19. Profibus Cable Connector
R
R
R
R
Termination switch
in ON position
R
R
Termination switch
in OFF position
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