
Byte Count : Total number of data bytes received.
Data register 1 High Byte : Most significant 8 bits of Data register 1 of the parameter requested.
Data register 1 Low Byte : Least significant 8 bits of Data register 1 of the parameter requested.
Data register 2 High Byte : Most significant 8 bits of Data register 2 of the parameter requested.
(Note : Two consecutive 16 bit register represent one parameter.
)
Data register 2 Low Byte : Least significant 8 bits of Data register 2 of the parameter requested.
Example : Writing System type
System type : Start address= 0A (Hex) Number of registers = 02
Query:( Change System type to 3phase 3wire = 2 )
01 (Hex)
Device Address
00(Hex)
00(Hex)
66 (Hex)
10 (Hex)
40 (Hex)
10 (Hex)
00 (Hex)
0A(Hex)
00 (Hex)
02(Hex)
04 (Hex)
00(Hex)
Data Register-2 Low Byte
Function Code
Starting Address Hi
Starting Address Lo
Number of Registers Hi
Number of Registers Lo
Byte Count
CRC High
CRC Low
Data Register-1 Low Byte
Data Register-2 High Byte
Data Register-1High Byte
37