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Chapter 11 Description of Parameter SettingsAFE2000 Series

11-86

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 or PLC (Computer Link)

 An AFE2000 unit 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 hexdecimal, ASCII: ”0”, “9”, “A”, “F”, every 16 hexdecimal 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

3456

Stop

bit

7-data bits

10-bits character frame

Stop

bit

（7 , E , 1）