Rish Master 3430 - Page 64

Query:
Device Address
Function Code
Start Address High
Start Address Low
Number of Registers Hi
Number of Registers Lo
CRC Low
CRC High
01 (Hex)
04 (Hex)
02 (Hex)
00 (Hex)
00 (Hex)
04 (Hex) **
F0 (Hex)
71 (Hex)
Start Address High : Most signicant 8 bits of starting address of User assignable register.
Start Address low :Least signicant 8 bits of starting address of User assignable register.
Number of register Hi : Most signicant 8 bits of Number of registers requested.
Number of register Lo : Least signicant 8 bits of Number of registers requested.
**Note : Two consecutive 16 bit register represent one parameter.
Since two parameters are requested four registers are required
Response : (Volt2 = 219.30 / Power Factor1 = 1.0)
01 (Hex)
04 (Hex)
Device Address
Function Code
08 (Hex)
43 (Hex)
5B (Hex)
4E (Hex)
Byte count
}
Voltage 2 Data
Data Register-1 Low Byte
Data Register-2 High Byte
Data Register-1High Byte
04 (Hex)
Data Register-2 Low Byte
63