การตรวจสอบและควบคุมข้อมูลหน่วยความจำของพีแอลซี แบบเวลาจริง ในเครื่องบังคับขยับข้อแบบต่อเนื่องโดยใช้อินเทอร์เน็ตของสรรพสิ่ง (REAL-TIME MONITORING AND CONTROL OF PLC DATA MEMORY IN CONTINUOUS PASSIVE MOTION MACHINE BASED ON THE INTERNET OF THINGS)
Keywords:
Internet of Things, PLC, Continuous Passive Motion MachineAbstract
This paper described the development of a low cost device for real-time monitoring and control of PLC data memory using internet of things (IoT) technology with a communication technique with PLC through programming port for continuous passive motion machine (CPM). The developed device allowed to monitor the status of the machine clearly and controlling it from a distance. From the experimental results shown that the developed device can display and control the status of CPM correctly 100%. The average time delay was 1.43 s. in updated status of software application on smartphones over the internet. The time delay was dependent on the speed and traffic density of internet.
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