Siemens Schweiz Ag

Siemens Building Technologies, Inc.

David E Bornside

Gerhard Brun

Herbert Meier

Theo Frutiger

Diego Madone

Olaf Mittrach

A system, process, and method for modeling a building automation system is provided that permits a control program to easily and efficiently add field devices, gather data from, and provide data to field devices, iterate though all field devices in a hierarchical structure, poll the field devices, evaluate the results, and react accordingly.

Application-generated function block for data exchange between control programs and building automation objects

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.

Control system with filtered dead zone

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Palatine, IL, United States of America

David E Bornside