Rishabh RISH CON - I - 4.1 Accessing 3 X register

4.1 Accessing 3 X register for reading measured
values
Two consecutive 16 bit registers represent one parameter.
Refer table 2 for the addresses of 3X registers (Parameters
measured by the instruments). Each parameter is held in the
3X registers. Modbus Code 04 is used to access all
parameters.
Example
To read parameter ,
Current: Start address= 06(Hex)Number of registers=02
Note : Number of registers = Number of parameters x 2
Each Query for reading the data must be restricted to 20
parameters or less. Exceeding the 20 parameter limit will
cause a ModBus exception code to be returned.
01
Illegal function The function code is not supported by
Current Transducer.
02
Illegal Data
Address
Attempt to access an invalid address
or an attempt to read or write part of
a floating point value
03
Illegal Data
Values
Attempt to set a floating point variable
to an invalid value
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)
00
(Hex)
06
(Hex)
00
(Hex)
02
(Hex)
91
(Hex)
CA
(Hex)
40