Field Bus Baud Rate And Field Bus Length For Profibus−Dp - Festo CPV..-DI01 series Electronic Manual

1. Installation
1.4.2 Field bus baud rate and field bus length for PROFIBUS−DP
Festo P.BE−CP−DI01−EN en 0503d
Please note
The maximum permitted field bus length and branch line
length depend on the baud rate used.
Please observe the maximum permitted length of the
·
field bus cable, if you connect the valve terminal via a
branch line.
Take into account also the sum of the branch line lengths
·
when calculating the maximum permitted length of the
field bus cable.
The CPV Direct sets itself automatically to one of the following
baud rates:
Baud rate Field bus length
(in kBaud) (max.)
9.6 1200 m
19.2 1200 m
93.75 1200 m
187.5 1000 m
500 400 m
1500 200 m
3000...12000 100 m
Tab. 1/10: Max. field bus length and branch line length for
PROFIBUS−DP depending on the baud rate
Max. permitted
branch line length
500 m
500 m
100 m
33.3 m
20 m
6.6 m
1−21