Patent ID: 9633240
Date: 2017-04-25
CPC Classifications: G06K

Claim:
1. A radio frequency electronic tag reader/writer device comprising: a housing, an antenna included in the housing, a processing circuit included in the housing and connected to the antenna, the processing circuit being configured to exchange data with a radio frequency electronic tag presented within range of the reader/writer device, at least one two-wire communication interface included in the housing and configured to be connected to a programmable logic controller external to the housing, and controlled by the processing circuit to exchange data with the programmable logic controller via the at least one two-wire communication interface, a signaling circuit included in the housing and configured to indicate one or more operating statuses, wherein: said signaling circuit is connected to the processing circuit, the processing circuit is configured to control said signalling circuit based on a control frame received from the programmable logic controller over said communication interface.