The sensors can be connected directly to the fieldbus or WI180C IO-Link gateway using an internal bus connector. The gateway also simplifies sensor integration into. As automation systems evolve toward distributed architectures and smart factories, high-speed and long-distance communication between PLC modules, sensors, HMIs, and SCADA systems becomes essential. Optical modules, such as SFP and SFP+ transceivers, play a critical role in providing reliable. Sensors communicate with the PLC via two primary signal types: digital or analog. These are simple "on/off" sensors. Digital sensors typically use NPN or PNP transistor outputs. SCADA generates trend curves showing thermal patterns over days and weeks. The embedded fibre Bragg grating sensors, are highly sensitive and can detect a number of different measurands such as temperature.