Rishabh Instruments RISH Master 3430i, Operating Manual

Page: 37 / 62

Address
(Register)
Sr.
No. Parameter
Modbus Start Address Hex
High Byte
Low Byte
High Byte High Byte
Modbus Start Address Hex 1P 2W 3P 4W 3P 3W
3P 4W 3P 3W









 




30215
30217
30219
30221
30225
108
109
110
111
113 I2 THD( % )
I3 THD( % )
System Voltage THD( % )
System Current THD( % )
I neutral
00
00
00
00
00 D6
D8
DA
DC
E0
Each setting is held in the 4X registers .ModBus code 03 is used to read the current setting
and code 16 is used to write/change the setting. Refer
Table 5
for 4 X Register
Example : Reading System type
System type : Start address = 0A (Hex) Number of registers =
Note :Number of registers = Number of Parameters x
Accessing 4 X register for Reading & Writing :
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)
03 (Hex)
00 (Hex)
0A (Hex)
00 (Hex)
02 (Hex)
E4 (Hex)
09 (Hex)
Note : Parameters 1,2,3 are L-N Voltage for 3P 4W & L-L Voltage for 3P 3W .
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