Compobus/S Interface - Omron CPM2C-S100C Operation Manual

System Configurations
1-2-2

CompoBus/S Interface

The standard built-in CompoBus/S interface increases the PC's I/O capacity,
reduces wiring, and saves space. Up to 32 CompoBus/S Slaves can be con-
nected to create a Remote I/O Link with up to 256 I/O points. It is easy to build
an efficient, long-range distributed system with less wiring by connecting
CompoBus/S I/O Terminals, Analog Terminals, Sensor Terminals, and Bit
Chain Terminals.
CompoBus/S transmission line
Slave
• The max. number of Slaves that can be connected through CompoBus/S
can be set to 16 or 32 Slaves. The following tables show how the max.
number of Slaves and communications mode settings affect the commu-
nications response time as well as the communications distance and
communications speed.
CompoBus/S Communications Response Time
Communications mode
High-speed mode
Long-distance mode
Communications Distance
Cable
2-conductor High-speed Commu-
VCTF cable nications Mode
Long-distance Com-
munications Mode
4-conductor High-speed Commu-
VCTF cable nications Mode
Long-distance Com-
munications Mode
Slave
32 or 16 Slaves max. (selectable)
Max. number of Slaves
16
32
16
32
Mode Main line
length
100 m max. 3 m max.
500 m max. 6 m max.
30 m max.
(See note.)
Flexibly branched, provided that the
total length of cable is a maximum of
200 m.
Section 1-2
Terminator
Slave
Communications
response time
0.5 ms
0.8 ms
4.0 ms
6.0 ms
Branch Total
line length branch
line length
50 m max.
120 m max.
3 m max. 30 m max.
(See note.) (See note.)
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