VS18/VS26
MAINTENANCE & INSTRUCTION BOOKLET
8.7 FD67
BUS
The FD67 bus system combines the decentralized signals of the I/O level and provides this
information to the Fieldbus network (Profibus DP, DeviceNet or CANopen).
The central unit is the bus node, which interconnects the VS18/VS26 FD67 valve islands and/or
the FD67 bus modules and the standard Fieldbus (Profibus DP, DeviceNet or CANopen).
The bus node has four connections for the internal FD67 system connection so it is possible to
connect up to 16 VS18/VS26 valve islands or I/O modules to one bus node.
Communication system:
shielded hybrid line for:
- communication between bus node and I/O modules
- transfer of sensor supply
- transfer of actuator supply
Baud rate:
1 MBit/s
Maximum slaves per FD67 system: 16
Total number of I/O per network:
256
Bus topology:
Star / Line
8.7.1 FD67 bus pin assignment
2 x M12 6-pin (B-coded / IP65)
(power connector integrated in bus connectors)
Pin no.
Function
Tolerance
Max. current
1
24 V actuator supply
+/-10%
1)
2
24 V sensor supply/internal /-25%
30 mA
3 Ground
- -
4
Internal system connection
-
-
5
Internal system connection
-
-
6 Ground
- -
1)
I
max
= n*60 mA
n = number of energized solenoids
Male
Female
Communication in
Communication out
Looking into node connectors
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