Abstract: The instant invention is directed to a variety of networked appliances, including equipment controlled or monitored via an Ethernet connection in industrial applications. In one example embodiment of the present invention, a networked industrial-application appliance, having a processor, includes a removable modular circuit board and a memory arrangement. The removable modular circuit board includes an identity circuit memory, an external-connection port for providing communication access between the networked industrial-application appliance processor and the identity circuit memory, and electrical conductors each of which is adapted to provide a connection with the external-connection port. The memory arrangement includes a nonvolatile memory device and is adapted to store an identity profile that is particular to the networked industrial-application appliance.

Abstract: According to an example embodiment, a system controls a resistance-based welding application with certain compensation for adverse aspects attributable to the power for the welding application being from an AC line. The system includes a power metering arrangement adapted to measure a first value of a power-based parameter from the AC line for a condition in which weld power is not commanded, a second value of the power-based parameter from the AC line while weld power is commanded during a first interval, and a third value of the power-based parameter from the AC line while weld power is commanded during a second interval. The system additionally includes a circuit adapted to respond to the first, second and third values by generating an estimated value for the power-based parameter corresponding to the condition in which weld power is not commanded, wherein the resistance welding application is controlled based on the estimated value.