Patent ID: 6370448
Filing Date: 2002-04-09
Classification: G05B,Y02P

Abstract:
A process device adapted to couple to a fluid process control loop, the process device comprising:a regulator circuit adapted to couple to the process control loop and power the process device with power received from the process control loop; loop interface circuitry adapted to couple to the process control loop to send and receive loop signals to and from the process control loop; processor circuitry operably coupled to the loop interface circuitry, the processor circuitry adapted to receive a sensor output; a memory operably coupled to the processor circuitry, the memory containing an internet address of the process device, the internet address comprising at least four groups of data each group comprising at least eight bits; and wherein the loop interface circuitry is configured to receive data packets from the process control loop which contain the internet address and to transmit data packets on the process control loop which include the internet address.