Application of MODBUS to Communicate the PLC and Lab VIEW for Real Time Process Control
Anjali S. Ashtekar1, Bhagsen J.Parvat2, Chandrakant B. Kadu3
1Anjali S. Ashtekar, Instrumentation and Control Dept., Pravara Rural Engineering College, Loni, Ahmednagar, India.
2Bhagsen J.Parvat, Instrumentation and Control Dept., Pravara Rural Engineering College, Loni, Ahmednagar, India.
3Chandrakant B. Kadu, Instrumentation and Control Dept., Pravara Rural Engineering College, Loni, Ahmednagar, India.
Manuscript received on September 11, 2013. | Revised Manuscript received on September 15, 2013. | Manuscript published on September 25, 2013. | PP: 41-45 | Volume-1, Issue-11, September 2013. | Retrieval Number: K04750911113/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents the State-of-the-Art and recent trends of SCADA system Architecture, which is usually three layer SCADA system architecture depending on open system technology rather than a vendor controlled, Proprietary technology. A Real-time Industrial process is simulated (water level controller), and a complete three-layer model SCADA system is developed for this process: supervision control layer, Process control layer and field Instrument layer. National Instrument’s LabVIEW with the associated Data Logging and Supervisory Control Toolset (DSC) is used to develop the SCADA/HMI in supervision layer. Industrial Programmable Logic Controllers (PLCs) from Delta, DVP 14SS and related software package are used to build up process control layer. Finally simulation unit is designed and developed to be used as field instrument layer. MODBUS protocol is used to solve compatibility problem raised from different vendors’ tools. This work represented the real time implementation of water level application and gives its results for showing its effective implementation. This is made by communicating Delta DVP-14SS PLC to the PC with LabVIEW 2011 via MODBUS for controlling water level.
Keywords: SCADA, DCS, RTU, LabVIEW.