MITSUBISHI ELECTRIC MR-J2S- CP - Manual (Page 347)

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15. COMMUNICATION FUNCTIONS
15.12.14 Software version
Reads the software version of the servo amplifier.
(a) Transmission
Send command [0] [2] and data No. [7] [0].
Command Data No.
[0][2] [7][0]
(b) Reply
The slave station returns the software version requested.
Software version (15 digits) Space