The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 02, 2006

Filed:

Apr. 11, 2003
Applicants:

David E. Bornside, Palatine, IL (US);

Theo Frutiger, Buffalo Grove, IL (US);

Inventors:

David E. Bornside, Palatine, IL (US);

Theo Frutiger, Buffalo Grove, IL (US);

Assignee:

Siemens Building Technologies, Inc., Buffalo Grove, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/01 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of operating a control device having a setpoint value, an error signal, and a control output is disclosed. The error signal is representative of a difference between a controlled variable and the setpoint value, the control output operable to affect the controlled variable. The method includes generating the control output based at least in part on the error signal and holding the control output at a held value independent of the error signal when the error signal is within a dead zone. The method also includes causing an integrating portion within the control device to track the error signal and the held value when the error signal is within the dead zone.


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