C500-XC PLC is protected against extreme conditions, eliminating the need for sophisticated protective enclosures. The operating range is -30 ºC to 70 ºC, with reliable system start-ups as low as -40 ºC. Circuit boards are conformally coated to protect against high humidity levels, and it has extended immunity against atmospheres with corrosive gases. Vibration and shock can be tolerated, with accelerations up to 4g from random vibrations up to 500 Hz, or 2 g from sinusoidal vibration. It also offers extended EMC protection.