CHAPTER 13 RS-485 COMMUNICATIONS
Modbus RTU Communications 13-23
13
a) Hardware CONT signal (CONT1 - 5)
00h
00h
00h
Data
4bytes
0 0 0 CONT5 CONT4 CONT3 CONT2 CONT1
b) Hardware OUT signal (OUT1 - 3)
00h
00h
00h
Data
4bytes
0 0 0 0 0 OUT3 OUT2 OUT1
(2) Control mode, Sequence mode, Alarm at present, Alarm history
Each piece of data in the control mode, sequence mode, alarm at present, and alarm history is the
code data of 1 byte.
00h
00h
00h
DATA
4bytes
Code
The content of the code varies depending on the data. For the detail, refer to the corresponding
tables below.
Control mode
Sequence mode
Code Control mode
Code
Sequence mode
00h Position control
00h
Servo off
01h
Speed control
01h
Servo on
02h
Torque control
02h
Zero speed stop
03h
Manual feed (JOG)
04h
Pulse operation
05h
＋OT
06h
－OT
07h
In LV (under voltage)
08h
Positioning
09h
Homing
0Ah
Interrupt positioning
Alarms at present and alarm histories
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