Multi-Platform Controller Interface for SCADA Application

Abstract

This paper concerns the development of a SCADA-Controller Interface (SCI) application for an open-channel experimental facility. Water delivery canals are complex and spatially distributed systems. The proposed application is to be applied to test control algorithms developed by several research groups with different technical approaches. The proposed interface allows the development of controllers in different environments -C/C++, MATLAB/Simulink, and GNU Prolog -and may be easily extended to other environments. The experimental facilities with the used instrumented canal, the programmable logic controller (PLC) network and the SCADA system are also described in this paper. Finally, some software experimental results are presented.

Linear Model for Canal Pools

“…All local PLCs are connected through a MODBUS network (RS 485). The interaction with theÉvora canal is done through 5 inputs (canal intake Q up and 4 gate positions Y g i ), 4 outputs (downstream water level at each pool Y L i ) and 4 considered disturbances Q o f f i (offtakes at each pool end) using a multi-platform controller interface (Duarte et al, 2011).…”

Flexible Framework for Modeling Water Conveyance Networks

“…The master PLC communicates to the SCADA computer by a serial port RS232 interface. Recently, a SCADA-Controller Interface application has been developed (Duarte et al, 2011) allowing interaction with the facility through different environments as MatLab, C/C++ and GNU Prolog.…”