7-
7
7-1-3 Modbus Communication Protocol for RS-485
The MODBUS protocol allows an easy communication within types of network architectures,before start to
communication with slave device, set the ID number (
Cn036
) for Servo drive respectively, server distinguish ID
number for controlling specific client station.
Standard Modbus networks combine two transmission modes: ASCII or RTU: ASCII(American Standard Code
for information interchange) Mode and RTU (Remote Terminal Unit) Mode, Use
Cn038 to
select ASCII or RTU
mode.
Coding method
ASCII Mode
8-bits Data consist of two ASCII code.
Ex: Data 26H 1-byte , the ’26’ convert to ASCII code is include character ’2‘
<32H> and ’6’
<36H>
ASCII Chart ( 0 ~ 9 and A ~ F ):
Character ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’
ASCII code(Hex)
30H
31H
32H
33H
34H
35H
36H
37H
Character ‘8’ ‘9’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’
ASCII code(Hex)
38H
39H
41H
42H
43H
44H
45H
46H
RTU Mode
Each 8bits is consist of 2 Hex number (4-bits per Hex number).
Ex.: Data 26H, the data length is 1-byte.
Summary of Contents for JSDAP Series
Page 1: ......
Page 17: ...1 11 1 2 Surface and Panel Board JSDAP 10A 15A 20A 30A JSDAP 50A3 75A3 100A3 25B 35B 50B ...
Page 21: ...1 15 1 4 2 Direction and Distance ...
Page 25: ...2 2 400V Class ...
Page 98: ...5 12 PA PB PZ 90 PA PB PZ 90 TIME A leads B CW CCW B leads A TIME ...
Page 236: ...9 5 Dimensions for JSDAP 150A3 75B 100B Dimensions for JSDAP 200A3 300A3 ...
Page 249: ...A 1 Appendix A Accessories ...
Page 250: ...A 2 ...
Page 251: ...A 3 ...
Page 255: ......