Local digital valve controller unit
AssigneeControl Components, Inc.
InventorLeonardo Fusi
Life of this patent
Estimating the term…
Abstract
A controller assembly is adapted for regulating at least one valve having a valve positioner. The controller assembly comprises a digital controller having a plurality of data inputs and data outputs and includes at least one proportional-integral-derivative (PID) controller operative to modulate the valve positioner in response to data received at the data inputs. The digital controller is configured to perform the following functions within a total time period of no greater than 10 ms: acquisition of data at the data inputs, processing of the data, and transmission of data from the data output in order to regulate the valve(s). The digital controller may include a quantity of at least sixteen digital inputs, at least sixteen digital outputs, at least eight analog inputs and at least eight analog outputs.
Claims22
A controller assembly adapted for regulating at least one valve group including at least a first valve and a second valve, the controller assembly comprising:
- a deterministic digital controller including data inputs and data outputs configured to perform the following functions within a total time period of no greater than approximately 10 ms:
- acquisition of data received at the data inputs representative of a first set of conditions associated with the first valve;
- acquisition of data received at the data inputs representative of a second set of conditions associated with a second valve;
- generating a first valve output in response to at least one of the first set of conditions and a second valve output in response to at least one of the first set of conditions and at least one of the and second set of conditions;
- and
- transmission of the first valve output data and the second valve output data from the data outputs to the respective first and second valves.
A controller assembly adapted for regulating a first valve having a first valve positioner and a second valve having a second valve positioner, the controller assembly comprising:
- a digital controller having a plurality of data inputs and data outputs and including at least one proportional-integral-derivative (PID) controller operative to modulate the valve positioners in response to data received at the data inputs;
- wherein the digital controller is configured to perform the following functions within a total time period of no greater than 10 ms:
- acquisition of data received at the data inputs representative of a first set of conditions associated with the first valve;
- acquisition of data received at the data inputs representative of a second set of conditions associated with a second valve;
- generating a first valve output in response to at least one of the first set of conditions and a second valve output in response to at least one of the first set of conditions and at least one of the and second set of conditions;
- and
- transmission of the first valve output data and the second valve output data from the data outputs to the respective first and second valve positioners.
A controller assembly adapted for regulating at least one valve group including at least one valve, the controller assembly comprising:
- a deterministic digital controller configured to perform the following functions within a total time period of no greater than approximately 10 ms:
- acquisition of data received at the data inputs;
- processing of the data;
- and transmission of data from the data outputs;
- and an explosion-proof and waterproof container sized and configured to house the digital controller and having a size that is less than approximately 500 mm by 500 mm by 300 mm.
A controller assembly adapted for regulating at least one valve group including at least one valve, the controller assembly comprising:
- a deterministic digital controller configured to perform the following functions within a total time period of no greater than approximately 10 ms:
- acquisition of data received at the data inputs;
- processing of the data;
- and transmission of data from the data outputs;
- and an explosion-proof and waterproof container sized and configured to house the digital controller and to occupy a volume less than approximately 0.75 m3.
A controller assembly adapted for regulating at least one valve group including at least one valve, the controller assembly comprising:
- a deterministic digital controller configured to perform the following functions within a total time period of no greater than approximately 10 ms:
- acquisition of data received at the data inputs;
- processing of the data;
- and
- transmission of data from the data outputs;
- and
- wherein the digital controller is configured to operate within a humidity range of between approximately 5 percent and approximately 95 percent.
Dependencies are inferred from the claim text.