Asking for information string format
Answering information string format
Function code
“0”---30H
Function code
“0”---30H
“6”---36H
“6”---36H
content
“0”---30H
content
“0”---30H
“0”---30H
“0”---30H
“0”---30H
“0”---30H
“2”---32H
“2”---32H
“1”---31H
Data of address
2104H
“1”---31H
“3”---33H
“3”---33H
“8”---38H
“8”---38H
“8”---38H
“8”---38H
LRC CHECK
“5” ---35H
LRC CHECK
“5” ---35H
“C” ---43H
“C” ---43H
END
CR ---0DH
END
CR ---0DH
LF ---0AH
LF ---0AH
RTU mode
:
Asking for information string format
Answering information string format
Address
00H
Address
01H
Function code
06H
Function code
06H
content
00H
content
00H
02H
02H
13H
13H
88H
88H
CRC CHECK Low
25H
CRC CHECK Low
25H
CRC CHECK High
5CH
CRC CHECK High
5CH
Function code
:
08H Communication loop test
This command is used to test the communication between main control equipm-
ent and VFD. VFD receives and sends back the message to the main control
equipment.
Larson Electronics, LLC
Phone:
Fax: (903) 498-3364
www.larsonelectronics.com
47
of
52
VFD-1P-220.240-1HP-7A-DCM
(877) 348-9680