The expression Fire & Gas is commonly related to the technological field dealing with fire protection and gas detection in industrial establishments intended for the production and transformation of energy, the production of chemical substances and the oil sector. It is, therefore, always a matter of safety, where maximum importance is attributed not only to the timeliness but also to the reliability of the protection systems, which is subject to parameters that are measurable and verifiable through mathematical modelling. To confront these scenarios, SCAME Sistemi have designed and manufactured the S81 HS control panel, which enables the achievement of the recently called “functional safety” programmable systems.