T-Branch Communication Specifications List - Mitsubishi Electric L26CPU-BT User Manual

6.4.2

T-branch communication specifications list

The following describes the communication specifications for T-branch connection.
For communication specifications not listed below, refer to
Item
Transmission speed
Maximum length of
the main line
Maximum length of
the branch line
Overall branch line
length
Maximum number of
connected stations
on the branch line
Connection cable Ver. 1.10 compatible CC-Link dedicated cable
• Terminal block
Off-the-shelf terminal block
T branch Terminal
• Connector
block/connector
Product equivalent to an FA sensor connector (IEC947-5-2) is
recommended.
CC-Link Ver.1.10 compatible cable (uses 110  terminating resistor)
Maximum length of
Transmission
main line, distance
speed
between T branches,
and length of cable
between stations
625kbps
156kbps
*3: The cable length of 1m or longer is for a system configured only with remote I/O stations and remote device stations.
*4: The cable length of 2m or longer is for a system configuration that contains local stations and intelligent device stations.
Terminal
resistor
R
2
1
1
(Length of branch line: 8m or shorter)
66
Specification
625kbps
100m
8m
50m
6 stations per branch
Maximum Distance
length of between T
main line branches
100m
No limit
500m
Maximum length of main line (not including the branch line length)
2 2
Master station
2
R
L/I
R
R
Page 26, Section 3.2.
156kbps
500m
200m
Length of cable between the
remote I/O stations or remote
*1
device stations
30 cm or longer
Distance between T branches
1 1
R R R
2
L/I
(Length of branch line: 8m or shorter)
R
Indicates a remote I/O station or a remote device station.
L/I Indicates a local station or an intelligent device station.
Remarks
10 M/5 M/2.5 Mbps are not allowed.
Indicates the length of the cable between
terminating resistors.
The length of T branch cable (branch line
length) is not included.
Indicates the overall cable length per branch.
Indicates the total length of all branch cables.
The total number of connected stations
depends on the CC-Link specifications.

• When wiring cables for the main line side,
try not to remove the covering as much as
possible.
Length of cable between the
master/local station or intelligent
device station and the adjacent
station(s)
1 m or longer (*3)/2 m or longer (*4)
2
2
L/I L/I
2
R
2
1 1 1
R R R
*2
Terminal
resistor
1
R R