Lenze ELCAMWIxxx4SNNPSNN (LCU 121) - Handbuch (Seite 68)

Electrical installation
Communication
4
l
68 EDKLCMW3024−SPS DE/EN 7.0
Number of bus stations
M
1 2 3
S S S S S
R R
2133PFB004
Segment Master (M) Slave (S) Repeater (R)
1 1
2 31
30 −
−
2 − 30 1
3 − 30 1
I
Tip!
Repeaters do not have a station address but in the calculation of the number
of stations they reduce the number of stations by 1 on each side of the
segment.
Repeaters can be used to build up line and tree topologies. In this case, the
maximum total bus system expansion depends on
ƒ the baud rate used
ƒ the number of repeaters used