Implementation of PLC using FPGA

Dhruti Dave, Punit Raninga

Abstract: Programmable Logic Controller (PLC) is most important component in modern manufacturing automation systems. Processor and software have been bottlenecks for improving operational efficiency of PLC. To enhance the PLC performance and flexibility, a new design called ?Design And Implementation Of FPGA Based PLC? has been proposed here. The design has been simulated using knowledge of FPGA design tools (such as HDL), to translate, integrate and implement the logic circuit in FPGA. The FPGA based Micro-PLC is based on parallel mechanism, so the proposed design works faster as compared to the conventional PLC. Implementing control logic with FPGA to replace a PLC, response time can be improved while sustaining the flexibility of control. In FPGA side Four- 32 bit 4 stage RISC pipeline Processors based on RUNG- Architecture are designed for dynamically forming and controlling each rung. This design also provides increased flexibility because FPGA offers reconfigurable hardware, increased reliability, better performance and faster scanning time.

Keywords: PLC,FPGA,HDL.