Omron OMNUC FND Series User Manual page 299

CompoBus/S Specifications
Item
Maximum number When a C200HW-SRM21 or SRM1-C01/02 Master Unit is Used (for C200HX/HG/HE,
of I/O Points, maxi- of I/O Points, maxi C200HS)
mum number of
connected Slaves,
communications communications
cycle time cycle time
When a CQM1 Master Unit is Used (For CQM1)
*The 4-point mode cannot be used when an FND-X Position Driver is connected.
Note Only the high-speed communications mode is available with the FND-X.
j Maximum Cable Length
The "main line length" indicates the sum of the cable lengths between the Master Unit and the terminat-
ing resistance connected to the farthest terminal from the main line. The "branch line length" indicates
the length of any cable that branches off from the main line. The "total branch line length" indicates the
sum of all the branch lines connected to the main line.
Master
Branch line length
Total branch line length = L
The main line length, branch line length, and total branch line length depend on the type of cable used
and the number of Slaves connected, as shown in the following table.
Cable type
VCTF cable
Special flat cable
Note 1. If no more than 16 Slaves are connected, the main line can be extended to a maximum of 100
meters and the total branch line length to a maximum of 50 meters, just as with VCTF cable.
Note 2. Use either VCTF cable or special flat cable, and do not mix them.
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Max. number of I/O
points
IN: 64; OUT: 64
IN: 128; OUT: 128
Max. I/O points
IN: 64; OUT: 64
IN: 32; OUT: 32
IN: 16; OUT: 16
Main line length
Slave Slave
Slave Slave
+ L + L + L + L
1 2 3 4 5
Main line length
100 m max.
30 m max. (See note 1.)
Specifications
Maximum number
of Slaves
IN:8; OUT: 8
IN: 16; OUT: 16
Maximum number
of Slaves
IN:8; OUT: 8
(in 8-pt. mode)
IN: 16; OUT: 16
(in 4-pt. mode)
IN:4; OUT: 4
(in 8-pt. mode)
IN:8; OUT: 8
(in 4-pt. mode)
IN:2; OUT: 2
(in 8-pt. mode)
IN:4; OUT: 4
(in 4-pt. mode)
Slave
Slave Slave Slave
Branch line length
3 m max.
3 m max.
Chapter 6
Communications
cycle time
0.5 ms
0.8 ms
Communications
cycle time
0.5 ms
Cannot be used.*
0.5 ms
Cannot be used.*
0.5 ms
Cannot be used.*
Terminating
resistance
Total branch length
50 m max.
30 m max. (See note 1.)
6-5