BECKHOFF BK5200 - Manual (Page 27)

BK5200, BK5210, LC5200 DeviceNet
BK52x0 27
Bus cable: length, assignment
The maximum length of cable which can be used depends on the selected
baud rate. The following lengths should be understood as the total length
of the main line plus any branch lines.
125 kbaud 500 m
250 kbaud 250 m
500 kbaud 100 m
Length of
Thin Cable
Used
(meters)
100
80
60
40
20
0
0 50 100 150 200 250 300 350 400 450 500
125k baud
250k baud
500k
baud
Length of Thick Cable Used (meters)
L
thick
+ 5 x L
thin
= 500 at 125Kbaud
L
thick
+ 2.5 x L
thin
= 250 at 250Kbaud
L
thick
+ L
thin
= 100 at 500Kbaud
where L
thick
is the length of thick cable and Lthin
is the length of thin cable.
Jacket
Data I nsul ation
Color: B lue
Braid Shi eld
A L/M Y
Shi eld
Data Insul ation
Color: White
DC Pow er I nsulati on
Color: Red
A L /M Y
Shi eld
DC Pow er I nsulati on
Color: Black
Drain Wi re
The cable consists of two shielded wire pairs. One pair carries out the
transmission. The second pair distributes the supply power.
V+
CAN_H
SHIELD
CAN_L
V-
Red P.M.S. #207C
White EIA 395A within wire/cable limits
Blue P.M.S. #297C
Black P.M.S. #426C
Connector wiring information