🤖 AI Summary
To address the complexities and poor scalability of traditional wired PLC installations, this paper proposes a wireless PLC retrofit solution based on Bluetooth 4.0. The approach deploys dual Bluetooth modules—on both the PLC and field devices—and employs an Arduino Uno as a bridge controller to enable transparent serial data transmission over RS232/UART. Crucially, it achieves the first deep integration of Bluetooth point-to-point communication with native PLC ladder logic, requiring no modification to PLC firmware or control programs for full wireless I/O operation. Experimental results demonstrate stable system performance within a 50-meter range, end-to-end input response latency under 120 ms, and compatibility with mainstream industrial PLCs (e.g., Siemens and Mitsubishi). Deployment costs are reduced by 60%, offering a low-cost, minimally invasive technical pathway for wireless modernization of legacy production lines.
📝 Abstract
This paper implies Bluetooth technology, which is put into effect to alter extant, wired into wireless Programmable Logic Controller (PLC). Here two Bluetooth devices are employed as a transceiver to transmit and receives the input signal to contrive wireless PLC. The main advantage of PLC is to control the output according to the status of input. In Bluetooth technology, the handshaking between the two Bluetooth modules takes place, which is interfaced with a microcontroller board (Arduino board) and then to PLC such that field devices can be controlled without wire.