Mitsubishi Electric MELSEC-Q Series User Manual page 82

(2) Communication specifications for a T-branch connection
The following table lists the communication specifications upon T-branch connection.
For those not listed below, refer to the performance specifications. (
Item
Transmission speed
Maximum length of the main
line
Maximum length of the branch
line
Overall branch line length
Maximum number of
connected modules on the
branch line
Connection cable
T-branch terminal
block/connector
80
Specifications
625kbps
100m
8m
50m
6 modules per branch
• Ver.1.10-compatible CC-Link dedicated cable
• CC-Link dedicated cable (Ver.1.00-
compatible)
• Terminal block
A commercially available terminal block
• Connector
An FA connector conforming to NECA4202
and IEC947-5-2 or equivalent product is
recommended.
(NECA: Nippon Electric Control Equipment
Industries Association)
Page 24, Section 3.2)
156kbps 10M, 5M, and 2.5Mbps cannot be used.
A cable length between terminating resistors.
500m The length (branch line length) of a T-branch cable is
not included.
A total cable length for each branch
200m A total length of all branch cables
The total number of connected modules depends on
the CC-Link specifications.
• Ver.1.10-compatible CC-Link dedicated cables
manufactured by different companies can be used
together.
• CC-Link dedicated cables (Ver.1.00-compatible)
manufactured by different companies cannot be
used together.
• CC-Link dedicated high-performance cables
(Ver.1.00-compatible) cannot be used.
Do not remove the jacket of the cables on the branch
line, if possible.
Remark