Chapter 4 Description of Parameters | VFD-VJ
4-60
COM1 Communication Protocol
Factory Setting: 13
Settings 0) 7, N, 1 for ASCII
1) 7, N, 2 for ASCII
2) 7, E, 1 for ASCII
3) 7, O, 1 for ASCII
4) 7, E, 2 for ASCII
5) 7, O, 2 for ASCII
6) 8, N, 1 for ASCII
7) 8, N, 2 for ASCII
8) 8, E, 1 for ASCII
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 (Computer Link)
When using RS-485 serial communication interface, each drive must be pre-specified its communication
address in Pr.09-00, the computer can implement control according to their individual address.
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
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