Delta VFD2A8MS21ANSAA User Manual

Appendix A. Modbus ProtocolMS300
794
Function Name
Modbus
Address
Attribute
(Function
Code)
Size
Description
Frequency value after
addition and
subtraction of master
and auxiliary
frequency
2234H
R(03H)
Display the frequency value after addition and subtraction of
master and auxiliary frequency
A-5 Exception Response
When the drive is using the communication connection, if an error occurs, the drive responds to the error
code and sets the highest bit (bit 7) of the command code to 1 (function code AND 80H) then responds
to the control system to signal that an error occurred.
If the keypad displays “CE-XX” as a warning message, “XX” is the error code at that time. Refer to the
table of error codes for communication error for reference.
ASCII mode
RTU mode
STX
‘:’
Address
01H
Address
‘0’
Function
86H
‘1’
Exception code
02H
Function
‘8’
CRC Check Low
C3H
‘6’
CRC Check High
A1H
Exception code
‘0’
‘2’
LRC Check
‘7’
‘7’
END
CR
LF
The explanation of exception codes:
Error code
Explanation
1
Function code is not supported or unrecognized.
2
Address is not supported or unrecognized.
3
Data is not correct or unrecognized.
4
Failure to execute this function code

Delta VFD2A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD2A8MS21ANSAA
Category	DC Drives
Language	English