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MELSEC-
3 SPECIFICATIONS
Table 3.3 VCTF cable specifications (Extract from JIS C 3306)
Conductor
Type No. of cores
Nominal cross-
sectional area
Composition
No. of wires/wire diameter
Outside
diameter
Insulator
thickness
Sheath
thickness
Conductor
resistance
(20
)
Vinyl cabtyre,
Round cord
4 0.75mm
2
30/0.18mm 1.1mm
0.6mm 1.0mm
25.1
Ω/km
3.3 Network Wiring Specifications
3.3.1 CC-Link network wiring specifications
For the network wiring specifications of CC-Link, refer to the user's manual of the
master module.
3.3.2 CC-Link/LT network wiring specifications
The following indicates the network wiring specifications of CC-Link/LT.
Item Specifications Remarks
Transmission speed 2.5 Mbps 625 kbps 156 kbps
Distance between stations Not limited
Max. no. of connectable
modules per drop line
8 modules
Length of trunk line 35 m 100 m 500 m
Cable length between
terminating resistors. Length
of drop lines not included
T-branch interval Not limited
Max. length of drop line 4 m 16 m 60 m
Max. cable length per branch
line
Overall length of drop lines 15 m 50 m 200 m Total length of all drop lines
*1
*2
AJ65SBT-CLB
CC-Link side
CC-Link/LT side
Master
station
Remote
I/O station
Remote
device station
Length of trunk line (Drop line not included)
Interval length of T-branch
T-branch
connection
Terminating
resistor
Power
supply
adapter
Distance
between stations
Trunk line
Drop line
Remote
station
Remote
I/O station
Remote
station
Remote
station
Remote
station
Remote
station
Remote
station
Remote
station
Remote
station
Remote
station
Remote
station
Terminating
resistor
Length
of
drop
line
Length
of
drop
line
*3
*3
1 The length of drop line includes the length of 2. (The max. length of drop line and overall
length of drop lines include the length of
2.)
3 Refer to Section 4.5.4 for the terminating resistor mounting method.