Asking for information string format
Answering information string format
content
“
2”---32H
Information
number
“0”---30H
“1”---31H
“0”---30H
“2”---32H
“4”---34H
Content of
address 2104H
“0”---30H
“0”---30H
“0”---30H
“0”---30H
LRC CHECK
LRC CHECK “D” ---44H
LRC CHECK
“D” ---44H
“7” ---37H
“7” ---37H
END
END CR ---0DH
END
CR ---0DH
LF ---0AH
LF ---0AH
RTU mode
:
Asking for information string format
Answering information string format
Address
01H
Address
01H
Function code
03H
Function code
03H
content
21H
Information number
02H
CRC CHECK Low
04H
content
00H
E8H
CRC CHECK Low
00H
0EH
CRC CHECK High
4BH
CRC CHECK High
37H
Function code 06H
：
Write to register
For example
：
writing function code P0.02=50.00HZ to VFD address 01H.
ASCII
mode
:
Asking for information string format
Answering information string format
Header
“：”---
3AH
Header
“：”---
3AH
Address
“0”---30H
Address
“0”---30H
“1”---31H
“1”---31H
Larson Electronics, LLC
Phone:
Fax: (903) 498-3364
www.larsonelectronics.com
46
of
52
VFD-1P-220.240-1HP-7A-DCM
(877) 348-9680
