A method of determining as found/as left information relative to a wireless field device

摘要

pA wireless field maintenance adapter includes a power source, a controller, a low-power radio-frequency communication module, and a wireless process communication protocol module. The controller is coupled to the power source. The low-power radio-frequency communication module is also coupled to the controller. The wireless process communication protocol module is coupled to the controller. The controller is configured to communicate through the wireless process communication protocol module based on information received from the low-power radio-frequency communication module./p [US2010190442A1]