14. COMMUNICATION FUNCTION (MITSUBISHI ELECTRIC GENERAL-PURPOSE AC SERVO PROTOCOL)
14 - 10
14.3.8 Communication procedure example
The following example reads the set value of alarm history (last alarm) from the servo amplifier of station 0.
Data item
Value
Description
Station No.
0
Servo amplifier station 0
Command
3 3
Reading command
Data No.
1 0
Alarm history (last alarm)
Data = [0]
= [0] [3] [3]
Transmission data =
Other than error code
[A] or [a]?
3 consecutive times?
300 ms elapsed?
Start
Data make-up
Checksum calculation and
addition
Addition of SOH to make up
transmission data
Data transmission
Data receive
3 consecutive times?
Receive data analysis
End
100 ms after EOT transmission
Error processing
Error processing
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Master station
Is there receive data?
Command
Data No.
Checksum = 30H + 33H + 33H + 02H + 31H + 30H + 03H =
46H 43H
Station No.
Slave station
Master station
Slave station
Master station
Slave station
ETX
STX
ETX
STX
3
3
1 0
+
+
+
+
ETX
SOH
0
STX
3
3
1
C
F
0
+
+
+
+
+
+
FCH
[1] [0]
Summary of Contents for MR-J4-100A(-RJ)
Page 19: ...10 MEMO ...
Page 75: ...1 FUNCTIONS AND CONFIGURATION 1 56 MEMO ...
Page 83: ...2 INSTALLATION 2 8 MEMO ...
Page 159: ...3 SIGNALS AND WIRING 3 76 MEMO ...
Page 203: ...4 STARTUP 4 44 MEMO ...
Page 351: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 40 MEMO ...
Page 365: ...8 TROUBLESHOOTING 8 14 MEMO ...
Page 387: ...9 DIMENSIONS 9 22 MEMO ...
Page 403: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 553: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 30 MEMO ...
Page 567: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 607: ...14 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 14 40 MEMO ...
Page 639: ...15 USING A LINEAR SERVO MOTOR 15 32 MEMO ...
Page 767: ...18 MR J4 03A6 RJ SERVO AMPLIFIER 18 84 MEMO ...
Page 856: ...APPENDIX App 41 ...
Page 905: ...MEMO ...