Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 452

Part 7: Common Reference Material
(5) Specify the target module.
Specify the model and the head XY address of the target module and then click the [OK] button.
(6) Execute servo parameter conversion.
Select the target servo amplifier setting and click the [OK] button.
The servo parameters are converted as follows depending on the target servo amplifier setting.
When "SSCNET III/H" is selected, MR-J3-_B_ is converted to MR-J4-_B_, MR-J3W-_B_ is converted to
MR-J4W2-_B.
When "SSCNET III" is selected: Utilize the MR-J3-_B_ and MR-J3W-_B data without conversion.
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