Rishabh RISH CON - V, Руководство по эксплуатации

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Table 2 : 3 X register addresses (measured parameters)
4.2 Accessing 4 X register for Reading & Writing :
Each setting is held in the 4X registers .ModBus code 03 is
used to read the current setting & code 16 is used to write /
change the setting. Refer
Table 3 for 4 X Register addresses.
Example : Reading Device address
Device address :Start address =0E(Hex) Number of
registers =02
Note : Number of registers = Number of Parameters x 2
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)
0E(Hex)
00 (Hex)
02 (Hex)
A5 (Hex)
C8 (Hex)
Address
(Register)
Parameter
No.
Parameter
Modbus Start Address Hex
High Byte Low Byte
30001 1 Voltage 00 00
Start Address : Most significant 8 bits of starting
address of the parameter requested.
Start Address low : Least significant 8 bits of starting
address of the parameter requested.
Number of register : Most significant 8 bits of Number of
Hi
registers requested.
Number of register : Least significant 8 bits of Number of
Lo
registers requested.
High
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