Methods and systems for identifying and connecting to field devices in an industrial plant. In an example embodiment, steps or operations can be implemented for providing credentials associated with a user through Li-Fi wireless communications, detecting a light pattern associated with the Li-Fi Wireless communications with a light sensor attached to a field device, transmitting a signal from the light sensor to a controller, which decodes the credentials associated with the user, and if the credentials are authorized, allowing the user to obtain device data associated with the field device wherein said data includes a location of said field device within said industrial plant. Such data can be obtained from a control room and/or a server through a wireless data communications network (e.g., wireless bidirectional communications).