KROHNE ALTOSONIC V12 EN - Manual (Page 127)

MODBUS PROTOCOL DESCRIPTION AND SET-UP
10
127
ALTOSONIC V12
www.krohne.com 04/2013 - 4002643502 - MA ALTOSONIC V12 R02 en
10.8 Modbus register mapping
Registers are mapped to specific address ranges according to both data and register type:
10.8.1 Input Registers (read-only): Integer (16-bit); address range 3000-3499
10.8.2 Holding Registers (read/write): Integer (16-bit); address range 3500-3999
Data type Register type Read
command(s) Write
command(s) Address range
Integer
(16 bit)
Input register 4 n.a. 3000..3499
Holding register 3 6, 16 3500..3999
Long integer
(32 bit)
Input register 4 n.a. 5000..5499
Holding register 3 6, 16 5500..5999
Double
(64 bit)
Input register 4 n.a. 6000..6499
Holding register 3 6, 16 6500..6999
Float
(32 bit)
Input register 4 n.a. 7000..7499
Holding register 3 6, 16 7500..7999
Long long
(64 bit)
Input register 4 n.a. 8000..8499
Holding register 3 6, 16 8500..8999
INFORMATION!
The relative addresses listed in the tables below are addresses relative to the starting address of
the designated register group.
Relative
address Absolute address Name Parameter /
Variable
(short
description)
non-Modicon Modicon-comp.
0 3000 3000-3001
(2 regs)
TestRegister
uint 16
Test Register
INFORMATION!
Register reserved for testing communications and protocol handling with this type of register,
without affecting the operation of the flowmeter.
Relative
address Absolute address Name Parameter /
Variable
(short
description)
non-Modicon Modicon-comp.
0 3500 3500-3501
(2 regs)
TestRegister
uint 16
Test Register
INFORMATION!
Register reserved for testing communications and protocol handling with this type of register,
without affecting the operation of the flowmeter.