Mitsubishi Electric MR-J2S-*A series Instruction Manual page 251

14. COMMUNICATION FUNCTIONS
(2) Transmission of data request from the controller to the servo
S
Controller side O
(Master station)
H
Servo side
(Slave station)
(3) Recovery of communication status by time-out
E
Controller side O
T
(Master station)
Servo side
(Slave station)
(4) Data frames
The data length depends on the command.
or
Data
4 frames
10 frames
S E
Check
Data
T T
No. sum
X X
Station number
or
group
EOT causes the servo to return to
the receive neutral status.
Data
8 frames
S
T
X
or 12 frames or 16 frames
14 - 6
Station number
or
group
E
Check
Data* T
sum
X
6 frames (data)