Chapter 11 Description of Parameter Settings
|
C200 Series
11-120
9: 8, O, 1 for ASCII
10: 8, E, 2 for ASCII
11: 8, O, 2 for ASCII
12: 8, N, 1 for RTU
13: 8, N, 2 for RTU
14: 8, E, 1 for RTU
15: 8, O, 1 for RTU
16: 8, E, 2 for RTU
17: 8, O, 2 for RTU
Control by PC or PLC (Computer Link)
A VFD-C2000 can be set up to communicate on Modbus networks using one of the following
modes: ASCII (American Standard Code for Information Interchange) or RTU (Remote Terminal
Unit).Users can select the desired mode along with the RS-485 serial port communication
protocol in Pr.09-00.
MODBUS
ASCII
（
American Standard Code for Information Interchange
）
: Each byte data is the
combination of two ASCII characters. For example, a 1-byte data: 64 Hex, shown as ‘64’ in ASCII,
consists of ‘6’ (36Hex) and ‘4’ (34Hex).
1. Code Description
Communication protocol is in hexadecimal, ASCII: ”0”, “9”, “A”, “F”, every 16 hexadecimal
represent ASCII code. For example:
Character ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’
ASCII
code 30H 31H 32H 33H 34H 35H 36H 37H
Character ‘8’ ‘9’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’
ASCII
code 38H 39H 41H 42H 43H 44H 45H 46H
Data
Format
10-bit character frame (For ASCII):
（
7, N , 2
）
Start
bit
0
1
2
3
4
5
6
Stop
bit
7-data bits
10-bits character frame
Stop
bit
（
7 , E , 1
）
Even
parity
Start
bit
0
1
2
3
4
5
6
Stop
bit
7-data bits
10-bits character frame
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