Mitsubishi Electric MELSERVO MR-J2 C Series, Инструкция по эксплуатации

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8 - 7
8. COMMUNICATION FUNCTIONS
8.5 Error codes
Error codes are used in the following cases and an error code of single-code length is transmitted.
On receipt of data from the master station, the slave station sends the error code corresponding to that
data to the master station. The code transmitted in uppercase indicates that the servo is normal and the
one in lowercase indicates that an alarm has occurred.
Error Code
Servo normal Servo alarm
Error Name Description Remarks
[A] [a] Normal operation Data transmitted was processed properly. Positive response
[B] [b] Parity error Parity error occurred in the transmitted data.
[C] [c] Checksum error Checksum error occurred in the transmitted data.
[D] [d] Character error
Character not existing in the specifications was
transmitted.
[E] [e] Command error
Command not existing in the specifications was
transmitted.
[F] [f] Data No. error
Data No. not existing in the specifications was
transmitted.
Negative response
8.6 Checksum
The checksum is sent as a ASCII coded hexadecimal code representing the lower two digits of the sum
of ASCII coded hexadecimal values up to ETX, with the exception of the first control code (STX or
SOH).
Check
Checksum range
ETX STX or
SOH
Station number
or
group
S
T
X
02H
[0]
30H
[A]
41H
[1]
31H
[2]
32H
[5]
35H
[F]
46H
E
T
X
[5] [2]
03H
30H 41H 31H 32H 35H 46H 03H
152H
Lower 2 digits 52 is sent after conversion into ASCII code [5][2].
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