Mitsubishi Electric MELSEC Q Series Programming Manual page 604

APPENDICES
Motion CPU module
Q17 DSCPU
Axis 1
(2) System configuration
A connection example using optical hub units is shown below.
The transmission route that passes through the optical hub unit IN connector
(CN1A connector for servo amplifier) and OUT1 connector (CN1B connector for
servo amplifier) is called the "Main route", and the transmission routes that pass
through OUT2 connector and OUT3 connectors are called the "Sub route".
The optical hub unit can only be connected on the main route. Also, the optical
hub unit is not included in the number of connected modules on a line.
Optical hub unit
MR-MV200
IN IN
OUT1
OUT2
Q173DSCPU: 2 lines (Up to 32 axes (Up to 16 axes per line))
Q172DSCPU: 1 line (Up to 16 axes)
Servo amplifier MR-J4(W)- B
Axis 2 Axis 3
OUT1
OUT2
Axis 7
OUT3
Axis 9
Axis 13
(Note): The optical hub unit is not included in the count
APP - 113
Axis 4 Axis 5 Axis 6
Axis 8
Sub route (3)
Axis 10 Axis 11 Axis12
Axis 14 Axis 15 Axis 16
Main
route
Sub
route (2)
Sub
route (1)