Environmental
From PLC Wiki
The Environmental section monitors external variables such as temperature and humidity that will impact the system's efficiency. These conditions are very critical in applications like cooling and energy usage, where subtle changes in the environment can have a massive impact. The user would thus better understand real-time influences of the environment on system efficiency and plan proactive methods to forestall disruption, if caused by things like heat or excess moisture. Hence, everything runs smoothly, even when environmental conditions are not optimal.