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8 COMMUNICATION FUNCTION (MITSUBISHI ELECTRIC AC SERVO PROTOCOL) [A]
8.3 Protocol
8.3
Protocol
Transmission data configuration
Up to 32 axes can be connected to the bus. Therefore, to determine the destination servo amplifier of data communication, a
station No. is added to the command, data No., etc. Set one station number to one servo amplifier using servo parameters.
Transmission data is enabled for the servo amplifier of the specified station No.
When "*" is set as the station No. to be added to the transmission data, the transmission data is enabled for all servo
amplifiers being connected. However, when return data is required from the servo amplifier in response to the transmission
data, set "0" as the station No. of the servo amplifier which must provide the return data.
Transmission of data from the controller to the servo
Transmission of data request from the controller to the servo
Data*
SOH
STX
Command
Data
No.
ETX
STX
ETX
Checksum
Checksum
10 (data)
6 frames
Positive response: Error code = A
Negative response: Error code = other than A
Station No.
Station No.
Controller side
(master station)
Servo side
(slave station)
Error code
Data*
SOH
STX
Command
Data
No.
ETX
STX
ETX
Checksum
Checksum
Station No.
Station No.
Controller side
(master station)
Servo side
(slave station)
Error code
10 frames
6 (Data)