Delta 1.07 VFD-D D User Manual download pdf (Page 91)

Chapter 4 Parameter Settings|DD Series

4-67

14: 8E1 (RTU)

15: 8O1 (RTU)

16: 8E2 (RTU)

17: 8O2 (RTU)

 1. Control by PC or PLC

A VFD-VL 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 serial port communication protocol in Pr.09-04.

Code Description:

ASCII mode:

Each 8-bit 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).

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

 2. Data Format

10-bit character frame (For ASCII):

( 7.N.2)

( 7.E.1)

Start

bit

0123456

Stop

bit

10-bit character frame

( 7.O.1)

Odd

parity

Start

bit

3456

Stop

bit

10-bit character frame

Even

parity

Start

bit

01234

Stop

bit

7-bit character

10-bit character frame

Stop

bit

7-bit character

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 140 141

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Delta 1.07 VFD-D D User Manual Page 91

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