Modbus/TCP
Communication
9-3
IM WT310-17EN
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App
Index
9.3
Register Functions and Applications
Measured data, setup data, and other types of data of this instrument are assigned to the internal
registers for Modbus/TCP. A client device can send commands to this instrument using Modbus/
TCP communication to read and write to the internal registers of this instrument. This enables
measured data and the like to be retrieved and the instrument to be controlled such as starting
integration.
Register Assignments
Register
Number
Group
Description
Input register 0001 to 0012 Measured data, status
Data not dependent on element/Σ, status
0101 to 0194
Measured data
(element 1)
Normal and harmonic measurement data of element 1
0201 to 0294
Measured data
(element 2)
Normal and harmonic measurement data of element 2
0301 to 0394
Measured data
(element 3)
Normal and harmonic measurement data of element 3
0401 to 0446 Measured data (Σ)
Normal measurement data of wiring unit Σ
2001 to 2510
Communication output
item data
Measured data synchronized with communication
output item settings
(:NUMeric[:NORMal]:ITEM<x> command)
3001 to 3008
Instrument display
item data
Measured data synchronized with the instrument
display of normal measurement
(Display A to Display D)
Hold register
0001 to 0010 Control data
Hold register values, control integration operation
Other
Reserved area (blank) Not to be used. Operation not guaranteed if written to.
