Electronic Device Disconnection
The invention provides for an electronic functional device such as an isolator/barrier for input/output process connection to a plurality of field devices possibly operating in a hazardous environment, the functional device having mounted there-to a disconnect element, such as a knife disconnect element, so as to be associated therewith and to provide disconnect functionality between the field devices and the isolator/barrier device, the mounting of the disconnect element at the isolator/barrier device also serving to provide further indication of the field device associated with the disconnect element.
1 . A functional device for input/output process connection to a plurality of field devices, the functional device comprising:
an integrated disconnect element to provide disconnect functionality between at least one field device of the plurality of field devices and the functional device, the disconnect element of the functional device configured to provide visual indication of the at least one field device associated with the disconnect element.
2 . The functional device as claimed in claim 1 , wherein the disconnect element is integrated directly at a location where field device wiring connects to the functional device.
3 . The functional device as claimed in claim 1 , wherein the disconnect element comprises a knife disconnect element.
4 . The functional device as claimed in claim 1 in combination with one or more additional functional devices of a field-device connection system wherein at least part of the connectivity of the system is by way of an arrangement of the functional device and the one or more additional functional devices.
5 . The functional device as claimed in claim 1 in combination with a functional device cabinet, wherein the functional device is mounted in the functional device cabinet.
6 . The functional device as claimed in claim wherein the functional device cabinet is an isolator and/or barrier cabinet for use in the connection of a plurality of field devices to input/output process wiring and process electronics.
7 . The functional device as claimed in claim 6 , wherein the disconnect element is provided in relation to field device lines entering the cabinet.
8 . (canceled)
9 . (canceled)