Field-mounted process device
First Claim
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1. A field-mountable process device comprising:
- a power over Ethernet module coupled to a port, the module being adapted to wholly power the process device with power received through the port, and to communicate in accordance with Ethernet communication;
a controller coupled to the power over Ethernet module and configured to measure or control industrial processes;
a first connection operably coupled to the controller and the power over Ethernet module through a power isolator and a communication isolator, the first connection being wired to at least one sensor through a plurality of first terminals;
a second connection operably coupled to the controller and the power over Ethernet module through a power isolator and a communication isolator, the second connection being wired to at least a second process interface element through a plurality of second terminals;
a first multiplexer coupled to the plurality of first terminals; and
a first analog-to-digital converter coupled to the controller and the first multiplexer, the first converter being adapted to convert an analog signal from one of the plurality of first terminals, into a digital value and to convey the digital signal to the controller.
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Abstract
A field-mounted process device with multiple isolated connections includes a connection that can be an input or an output. The given input or output can couple to multiple sensors or actuators, respectively. The process device can be wholly powered through its communication I/O port. The process device includes a controller adapted to measure one or more characteristics of sensors coupled to an input connection and to control actuators coupled to an output connection. The controller can be further adapted to execute a user generated control algorithm relating process input information with process output commands.
70 Citations
14 Claims
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1. A field-mountable process device comprising:
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a power over Ethernet module coupled to a port, the module being adapted to wholly power the process device with power received through the port, and to communicate in accordance with Ethernet communication; a controller coupled to the power over Ethernet module and configured to measure or control industrial processes; a first connection operably coupled to the controller and the power over Ethernet module through a power isolator and a communication isolator, the first connection being wired to at least one sensor through a plurality of first terminals; a second connection operably coupled to the controller and the power over Ethernet module through a power isolator and a communication isolator, the second connection being wired to at least a second process interface element through a plurality of second terminals; a first multiplexer coupled to the plurality of first terminals; and a first analog-to-digital converter coupled to the controller and the first multiplexer, the first converter being adapted to convert an analog signal from one of the plurality of first terminals, into a digital value and to convey the digital signal to the controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification