Authors :
H.M.K.K.M.B. Herath; S.V.A.S.H. Ariyathunge; H.D.N.S. Priyankara
Volume/Issue :
Volume 5 - 2020, Issue 6 - June
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/3ghqh8L
DOI :
10.38124/IJISRT20JUN479
Abstract :
MODBUS is a serial communication protocol
use in industry, which developed by Modicon in 1979.
The most common usage of the MODBUS
communication protocol is the Programmable Logic
Controllers (PLC). The aim of this study is to develop a
system for acquiring and analyze measured values from
the power measuring device and display them on C#
developed GUI. The main objective is to develop an
algorithm for MODBUS RTU communication protocol
for data acquisition process. In this study, a single
power measuring device was used with the aid of
MODBUS RTU and RS-485 communication protocols,
and data shown in the device was visualized on the C#
developed GUI application and analyze them according
to the user’s requirement. Data acquisitions from the
holding registers were made by using the MODBUS
Function Code three. The test results were observed and
verified accuracy by performing several trials. Data was
collected from the power measuring device which was
attached to the industrial soft starter panel of a milling
machine. Voltage, Current, Total Harmonic Distortion
and Power Factor for each phase were retrieved to the
C# devolved computer application and verify results
with the real-time data of the power measuring device.
Keywords :
MODBUS, RTU, C#, Serial Port Communication, Microcontroller, PLC, RS-485, GUI, Remote Monitoring
MODBUS is a serial communication protocol
use in industry, which developed by Modicon in 1979.
The most common usage of the MODBUS
communication protocol is the Programmable Logic
Controllers (PLC). The aim of this study is to develop a
system for acquiring and analyze measured values from
the power measuring device and display them on C#
developed GUI. The main objective is to develop an
algorithm for MODBUS RTU communication protocol
for data acquisition process. In this study, a single
power measuring device was used with the aid of
MODBUS RTU and RS-485 communication protocols,
and data shown in the device was visualized on the C#
developed GUI application and analyze them according
to the user’s requirement. Data acquisitions from the
holding registers were made by using the MODBUS
Function Code three. The test results were observed and
verified accuracy by performing several trials. Data was
collected from the power measuring device which was
attached to the industrial soft starter panel of a milling
machine. Voltage, Current, Total Harmonic Distortion
and Power Factor for each phase were retrieved to the
C# devolved computer application and verify results
with the real-time data of the power measuring device.
Keywords :
MODBUS, RTU, C#, Serial Port Communication, Microcontroller, PLC, RS-485, GUI, Remote Monitoring
