Installation Guidelines S5-95U, SINEC L2
2.3.3 Connecting Bus Segments
This section explains how you connect bus segments to the L2 repeater. Note that you must
terminate a segment at both ends (i.e., when the terminators are connected, the bus is terminated).
Repeater at Segment End
Figure 2-7 shows the connection of two segments to a repeater.
Figure 2-7. Connecting Two Bus Segments to Screw-Type Terminals of the L2 Repeater (1)
PS 24V
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Bussegment 1
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Bussegment 2
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Segment 1
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Segment 2
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Both of the A terminals and both of
the B terminals of a bus segment
are jumpered internally (no gain).
The data signal is amplified and
regenerated only between the “bus
segment 1” and “bus segment 2”
terminal blocks.
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Setting:
”Bus terminated”
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e.g., S5-95U programmable controller
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Repeater with terminating resistors connected
PLC PLC PLC
PLC PLC PLC
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Segment 2
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Connect terminators
for bus segment 1
and for bus segment 2.
PLC
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SINEC L2 bus connector (terminating resistor connected)
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SINEC L2 bus connector (terminating resistor disconnected)
2-6
EWA 4NEB 812 6112-02
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