Abstract
Siemens LOGO PLC is a compact system for small automation projects, programmed via LOGO Soft Comfort. Its graphical interface enables easy circuit program creation, facilitating customized control systems swiftly. LOGO Soft Comfort allows offline and online testing, simulation, and program archiving. PLC timers, integral to the system, regulate input and output signals, functioning like relay timers without physical presence or wiring. This paper delves into PLC-based industrial timer controllers, designed to supersede traditional hard-wired relay and timer logic systems. Common PLC timers include Pulse, On-delay, Retentive On-delay, and Off-delay timers, pivotal for time delays and production monitoring in industries. They facilitate actions like turning machines off after set periods or initiating them after specific delays upon sensor activation or button press
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