Festo FB13 - Field Bus Baud Rate and Field Bus Length

Field bus baud rate and field bus length
PLEASE NOTE
The Festo valve terminals types 03/05 set
themselves automatically to the correct baud
rate.
The maximum field bus length depends on the
baud rate used. The table below shows the baud
rates which can be used.
Cable specification as per DIN 19245 part 3
(cable A):
Surge impedance: 135-165 Ohm
(2-20 MHz)
Capacitance per unit length < 30 pF/m
Loop resistance < 110 Ohm/km
Core diameter > 0.64 mm
Core cross section > 0.34 mm
2
Permitted outer diameter
of cable for Festo plug
no. 174345: 6...9 mm.
Baud rate Field bus length (max.)
9.6 kB 1200 m
19.2 kB 1200 m
93.75 kB 1200 m
187.5 kB 1000 m
500 kB 400 m
1500 kB 200 m
3000 - 12.000 kB 100 m
VIFB13 - 03/05 3. Installation
3-14
9701 NH