10
Compatible Devices Section 1-3
Cables CompoBus/S communications are transmitted through Special Flat Cable or
4-conductor VCTF cable. The communications power supply can be supplied
through either of the cables.
Connection Methods Two methods can be used to connect the CompoBus/S Master and Slaves:
the T-branch method and the multidrop method. With the T-branch method,
the Slave is connected to a line that branches off from the communications
cable wherever desired. With the multidrop method, the Master or Slave is
connected directly to the communications cable. These two connection meth-
ods can both be used in the same system and it is possible to make a second-
ary branch from a branch line. Use OMRON’s Branch Connector for Special
Flat Cable, a T-joint for a shielded connector, or a commercially available ter-
minal block to create a branch from the communications cable.
Terminator A terminator must be connected to the end of the communications cable far-
thest from the Master in order to stabilize communications. There are three
kinds of terminating resistors available, a connector for use with Special Flat
Cable, a terminal block, and a shielded connector. In a system in which distin-
guishing between the main and branch lines is not necessary, only a single
terminator farthest from the Master is required regardless of the position the
Master is connected to the communications cable.
1-3 Compatible Devices
1-3-1 Compatible Masters
Masters with
Communications
Functions
There are three types of Master Units which can be used in CompoBus/S
Systems. The model of the Master Unit which must be used depends on the
PLC being used.
PLC C200HX-CPU3@-
(Z)E/ CPU4@-(Z)E,
C200HG-CPU3@-
(Z)E/CPU4@-(Z)E,
C200HE, C200HS
C200HX-CPU5@-
(Z)E/ CPU6@-(Z)E/
CPU8@-(Z)E,
C200HG-CPU5@-
(Z)E/ CPU6@-(Z)E,
CS Series
CS Series CJ Series CQM1, CQM1H
Master
Unit
C200HW-SRM21-V1 CS1W-SRM21 CJ1W-SRM21 CQM1-SRM21-V1
Communi-
cations
mode
High-speed Communications Mode or Long-distance Communications Mode (switched using the DIP switch
on front panel)
Analog I/O
Ter mi nal
connection
Possible
Max. num-
ber of Mas-
ters
10 Units (when
using a single Spe-
cial I/O Unit node
number (i.e., 10
words))
5 Units (when using
two Special I/O Unit
node number (i.e.,
20 words))
16 Units (when
using a single Spe-
cial I/O Unit node
number (i.e., 10
words))
8 Units (when using
two Special I/O Unit
node number (i.e.,
20 words))
96 Units (when
using a single Spe-
cial I/O Unit node
number (i.e., 10
words))
95 Units (when
using two Special
I/O Unit node num-
ber (i.e., 20 words))
40 Units CQM1: 1 Unit
CQM1H: Up to the
number correspond-
ing to the maximum
I/O points for the
CPU Unit.
Master
Unit
mounting
location
Can be mounted on the CPU Backplane or Expansion I/O Back-
plane. Can’t be mounted on a SYSMAC BUS Slave (RT) Rack.
Can be connected
in the CPU Rack or
Expansion Rack.
No restrictions.
To Next Page
Loading...
