What is a feature of WirelessHART as defined by IEC 62591?

WirelessHART, as defined by IEC 62591, is indeed a multi-vendor wireless standard specifically designed for industrial process automation. One of the key features of WirelessHART is its interoperability among devices from different manufacturers, which allows for greater flexibility and easier integration into existing systems. This feature is particularly beneficial in industrial environments where equipment from various vendors must work together seamlessly.

The standard was developed to address the specific needs of industrial applications, including reliability, security, and support for low-power devices, making it suitable for the diverse array of devices and protocols typically encountered in such settings. The ability to have a multi-vendor standard fosters competition, innovation, and the availability of a broader range of solutions to meet industry demands.

In contrast, other options describe characteristics that do not apply to WirelessHART. For example, being a single-vendor standard would limit flexibility and choices for end-users. Additionally, WirelessHART is not intended for home automation, which is usually the focus of different protocols. Lastly, the claim about using only analog communication is inaccurate, as WirelessHART supports digital communication, which is crucial for the modern industrial setup.