subcon-plus-profib… - Onlinecomponents.com

SUBCON-PLUS-PROFIB…
Figure 16
Connection
6 Termination Resistor
6.1 Activating the Termination Resistor and
Switching Off Outgoing Bus Cables
Start
ON
Figure 17
ON
OFF
OFF
ON
OFF
OFF
A A
B B
≈
• Strip the cable to the specified stripping lengths (see
Figure 15).
• Remove the separation foil, if necessary.
• Insert the individual wires into the connection terminals
as far as possible.
• Always connect the incoming bus cable to terminal
connections 1A/1B (even at the start of the bus system).
• The outgoing bus cable is always connected to terminal
connections 2A/ 2B (see Figure 16).
When connecting, take into account the color-coding of
the connection terminals.
• To finish, mount the connection terminals and tighten
the screws. This provides the shield connection and
strain relief for the bus cable.
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Termination resistor
The termination resistors are activated at the start and end
of the bus system by means of the slide switch (item 2 in
Figure 3, item 3 in Figure 9, and item 4 in Figure 14). At the
same time, the connection terminals (2A/2B) for the
outgoing bus cable are switched off.
The termination resistor must be deactivated at all other
nodes of the bus system.
ON
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
End
6.2 Linear Extension in Accordance with
PROFIBUS Specification
Transmission Speed
in kbps
Corresponding Segment
Length
9.6/19.2/45.45/93.75 1200 m
187.5 1000 m
500 400 m
1500 200 m
3000/6000/12000 100 m
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