Norgren VS18 Series Valve Advantage - Manual (Page 71)

VS18/VS26 MAINTENANCE & INSTRUCTION BOOKLET
8.5 I NTERBUS -S
Norgren Interbus-S Fieldbus systems conform to DIN19258.
Communication system:
4-wire RS422 hardware
communication protocol
Number of nodes per network: Master + 512 nodes including
remote slaves
Total number of I/O per network: 4096
Bus topology: Ring
Note:
• VS18/VS26 Interbus-S valve islands are intended for connection to the Interbus-S remote
bus system only.
• The valve island must be mounted on an earthed base to meet the EMC directives.
8.5.1 Interbus-S pin assignment
Male D-Sub 9-pin (IP65) Female D-Sub 9-pin (IP65)
Pin no. Function Pin no. Function
1 DO 1 DO
2 DI 2 DI
3 0VI 3 0VI
4 - 4 -
5 - 5 -
6 /DO 6 /DO
7 /DI 7 /DI
8 - 8 -
9 - 9 -
The VS18/VS26 Interbus-S valve islands do automatically recognize whether an additional
device is connected on the outgoing connector or not. It is not necessary to add a bridge
between pin 5 and pin 9.
Male Female
Communication in Communication out
Looking into node connector
VS2672926-KG00E_05/07 Page 71/97