Design and Implementation of an Embedded PLC System with Applied-Information Technology

Abstract:

To overcome the shortcomings of external PLC (Programmable Logic Controller) and soft PLC being widely employed in switch control of CNC machine tool, an embedded PLC system was developed by integrating AVR single chip ATMEGA169, PC bus technique and dual port RAM. Both hardware circuit and software of the PLC system were designed and implemented. The software of Industrial PC was developed by using ladder-diagram IDE (Integrated Design Environment) based on the platform of Borland C++ Builder. In this environment, it can fulfill edit, compilation and communication function of ladder-diagram file. It also can monitor and diagnose PLC running status. This developed embedded PLC system has the characteristics of compact structure, high communication and reliability. It can effectively satisfy real-time control requirements of CNC machine tool.

• Periodical: Applied Mechanics and Materials (Volume 685)
• Pages: 401-404
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.685.401
• Online since: October 2014
• Authors: Xiao Juan Shi*
• Keywords: ATMEGA169, Embedded PLC, IDE, Ladder-Diagram

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