Omron CJ Series Operation Manual page 69

Communi- 4 Mbps
cations dis-
3 Mbps
tance
1.5 Mbps
93.75 kbps
Unit Number
• Unit number 5 is used.
Communications Mode Number and Baud Rate
• Communications mode number: 3 (Mode 3 is selected because Word Slave Units and Bit Slave
Units are used. Memory can be allocated with I/O ports, so no software settings are required from
the CX-Integrator.)
• Baud rate: 3 Mbps (Branch lines are used, but not sub-branch lines. Also, this baud rate can be
used with a maximum trunk line length of 30 m.)
Communications Cycle Time
The communications cycle time is 2.5 ms, at a baud rate of 3 Mbps in communications mode 3.
Base calculations on a communications cycle time of 2.5 ms. (For details on I/O response times,
refer to 5-5 Remote I/O Communications Performance.)
Slave Unit type and maxi-
mum number of nodes
Word Slave Units, max. 8
nodes input and 8 nodes out-
put
Word Slave Units, max. 16 nodes
input and 16 nodes output
Word Slave Units, max. 32 nodes
input and 32 nodes output
Word Slave Units, max. 16 nodes
input and 16 nodes output; Bit
Slave Units, max. 64 nodes input
and 64 nodes output
Word Slave Units, max. 64
nodes input and 64 nodes out-
put; Bit Slave Units, max. 128
nodes input and 128 nodes
output
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Item
Round Cable I
Length of the trunk line or a sub-trunk line: 30 m max.
Length of the trunk line or a sub-trunk line: 30 m max.
Length of the
trunk line or a
sub-trunk line:
100 m max. when
there is no
branching, 30 m
max. when there
is branching
Length of the
trunk line or a
sub-trunk line:
500 m max.
Baud rate
Communi-
cations
mode No.
0
1
2
3
8
Cable type
Round Cable II
Length of the trunk line or a sub-trunk line: 30 m max.
Total wiring length per segment: 200 m max.
Communications cycle time (with message communica-
tions)
4 Mbps 3 Mbps
0.9 ms 0.9 ms
1.0 ms 1.2 ms
1.3 ms 1.7 ms
2.0 ms 2.5 ms
0.79 ms + 0.85 ms +
added time added time
for number of for number of
and types of and types of
Slave Units Slave Units
1 Introduction
Flat Cable I Flat Cable II
Not supported
1.5 Mbps 93.75 kbps
1.5 ms 19.8 ms
2.3 ms 30.2 ms
4.0 ms 51.3 ms
5.9 ms 72.1 ms
1.94 ms + 24.81 ms +
added time added time
for number of for number of
and types of and types of
Slave Units Slave Units
1-29
1