Yaskawa VS-616G5 InterBus-S Control Card SI-R - Manual (Page 8)

Page 8 VS-616G5 Option Instruction Manual: InterBus-S Control Card SI-R
INTERBUS-S FUNCTION
InterBus-S System Description
The following contains a brief technical and functional description of the InterBus-S
standard. For a more detailed description, please consult the InterBus-S specification.
InterBus-S Remote Bus Data
The remote bus bridges large distances within the system. The entire remote bus can
be up to 12.8 km in length (from the host to the last connected remote bus module).
This is achieved by dividing the entire remote bus into individual segments.
A remote bus segment consists of the transmission line (remote bus cable), and the bus
module connected to it; a remote bus segment can bridge up to 400 m. The complete
remote bus can thus be subdivided into 256 remote bus segments.
Host
(Master)
BK module
for local
bus
Local I/O Local I/O Local I/O
BK module
for installation
bus
Installation remote bus
Remote
bus
device
Remote
bus
device
Remote
bus
device
Control Cabinet
Local Bus
Fig. 7 InterBus-S Topology
Remote bus
segment 1
Remote bus
segment 2
Remote bus
segment 3
Remote bus
segment 4 Remote bus
segment 5
Segment A Segment B Segment C
Each segment (1, 2, 3, 4, or 5) length
≤
400m
Total segment (1 + 2 + 3 + 4 + 5)
≤
2Km
Maximum 256 segments with total length < 12.8Km
Notes:
Out
IN OUT
IN OUT
Installation
bus
I/O
IN OUT IN OUT IN OUT
Installation
bus
I/O
Installation
bus
I/O