Fire alarm system using smoke and heat detectors with PLC

Abstract

The technology of twenty century covers the side of safety and security system field in a very compressing steps, because the development was so fast. In this research the electronic mechanism used in certain places; the application used was simply detectors "sensors" especially of heat and gas. The sensors of heat and gas depend mainly on sensitivity of them; and so the effect reflects on the circuit. The best choice was PLC testing; the signal found was treated using ladder diagram "programming language". When output is found the devices directly gives "buzzer / lamp" signal