Festo IIFB9-02 Series, Manual

Page: 60 / 165

Field bus baud rate and field bus length
PLEASE NOTE
The Festo valve terminals set themselves
automatically to one of the following baud
rates.
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 E 19245 part 3
(cable A):
Surge impedance:
135 - 165 Ohm
(3 - 20 MHz)
Capacitance per unit length < 30 pF
Loop resistance
< 110 Ohm/km
Core diameter > 0.64 mm
Core cross section > 0.34 mm
2
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
Cable type Part no. Supplier
UNITRONIC bus-L2 2170221T Lapp
UNITRONIC bus-FD P L2 2170222T Lapp
UNITRONIC bus Yv L2 2170223T Lapp
Sinec L2-bus 80384 Helukabel
Standard L2-bus cable 6xV1 830-OAH10 Siemens
Suitable drum cable 6xV1 830-3BH10 Siemens
VIFB9 - 02 4. Installation
9609
4-23