Background & Objective:
Wireless networks are making its way for use in industrial control
system applications. The installation of Wireless networks naturally provides a reduction in cable
and its maintenance related costs, provides increased flexibility and mobility to enhance the performance
of industrial control system.
Method:
This paper attempts to show the suitability of a wireless network in control system application
of ECRH system at IIGTF. IEEE 802.11n network is implemented to interface field instruments
with PLC based control system in an industry like environment. The two case studies with different
control architecture are implemented with satisfactory test results. The first case demonstrates the use
of a wireless network for monitoring and data acquisition of cooling water process parameters. The
second case implements the control and monitoring of the DC power supply over the wireless network
through a serial ASCII protocol. The performance of wireless communication alone in is evaluated
using theoretical analysis, simulation and actual field measurement. Then overall performance
of the case studies including field signals and PLC system is evaluated.
Conclusion:
The PLC application logic is developed for the implementation of logic functions to interface
various field instruments and power supply. The DC power supply is simulated using Labview
™ for serial ASCII communication. The above said concept is proposed for the Local Control
Unit being developed for ITER-India Test Gyrotron Facility.
Design and Implementation of Industrial Control System Emulators
