Abstract: Methods and systems for reconnecting a device with an expired device operational certificate in a building management system (BMS) are disclosed. One method includes identifying that a device operational certificate of a first device has expired, sending an instruction to a second device to accept the expired device operational certificate as valid, receipt of the instruction causing the second device to relax an expiration date and accept the expired device operational certificate as valid, and delivering a replacement device operational certificate to the first device to replace the expired device operational certificate.

Abstract: A building management system includes a communications bus, subordinate devices connected to the communications bus, and a controller connected to the communications bus. The controller includes an active node table including a plurality of nodes, each node representing one of the subordinate devices connected to the communications bus. The controller is configured to monitor the active node table for a newly connected subordinate device, use a set of rules to determine whether the newly connected subordinate device is supported by the controller for performing an identified function in combination with the controller, and, in response to a determination that the newly connected subordinate device is supported, extend the identified function of the controller to the newly connected subordinate device. Extending the identified function includes enabling the newly connected subordinate device to perform the identified function.

Abstract: A variable air volume controller includes a communications interface and a processing circuit. The communications interface is configured to facilitate communication with an external device and building equipment. The processing circuit is configured to store a plurality of predefined, selectable-applications; receive a selection of one of the plurality of predefined, selectable-applications; and implement the selected application such that the building equipment is controlled according to the selected application.

Abstract: A building system includes heating ventilation or air conditioning (HVAC) devices configured for communication on a building automation network and a communication engine. The communication engine is configured to provide a diagnostic attribute. The diagnostic attribute indicates communications with the HVAC devices as being according to a first communication protocol or at least one different communication protocol. Systems and methods may detect insecure communications and/or upgrade in secure communication protocols in wireless or wired networks, such as, BACnet systems and/or subsystems.

Abstract: A building system includes heating ventilation or air conditioning (HVAC) devices configured for communication on a building automation network and a communication engine. The communication engine is configured to provide a diagnostic attribute. The diagnostic attribute indicates communications with the HVAC devices as being according to a first communication protocol or at least one different communication protocol.

Abstract: A method for updating heating, ventilation, or air conditioning (HVAC) devices is provided. The method includes receiving an update package at a first HVAC device of a plurality of HVAC devices via a network. The update package includes an identification of a plurality of device models and a plurality of software updates. The method includes determining that a device model for the first HVAC device is identified by the update package and in response to a determination that the device model for the first HVAC device is identified by the update package, extracting a first software update corresponding to the device model for the first HVAC device from the update package and installing the first software update on the first HVAC device. The method includes transmitting the first update package to a second HVAC device of the plurality of HVAC devices via the network.

Abstract: A variable air volume controller includes a communications interface and a processing circuit. The communications interface is configured to facilitate communication with an external device and building equipment. The processing circuit is configured to store a plurality of predefined, selectable-applications; receive a selection of one of the plurality of predefined, selectable-applications; and implement the selected application such that the building equipment is controlled according to the selected application.

Abstract: A variable air volume controller includes a communications interface and a processing circuit. The communications interface is configured to facilitate communication with an external device and building equipment. The processing circuit is configured to store a plurality of predefined, selectable-applications; receive a selection of one of the plurality of predefined, selectable-applications; and implement the selected application such that the building equipment is controlled according to the selected application.

Abstract: A method for updating heating, ventilation, or air conditioning (HVAC) devices is provided. The method includes receiving an update package at a first HVAC device of a plurality of HVAC devices via a network. The update package includes an identification of a plurality of device models and a plurality of software updates. The method includes determining that a device model for the first HVAC device is identified by the update package and in response to a determination that the device model for the first HVAC device is identified by the update package, extracting a first software update corresponding to the device model for the first HVAC device from the update package and installing the first software update on the first HVAC device. The method includes transmitting the first update package to a second HVAC device of the plurality of HVAC devices via the network.

Abstract: An equipment controller in a building management system (BMS) includes a feature detector and a dynamic point list generator. The feature detector is configured to receive sensor input from a sensor and determine a set of features available to the equipment controller based on the sensor input. The dynamic point list generator is configured to determine unavailable features based on the set of available features and identify one or more points in a complete point list associated with the set of unavailable features. The dynamic point list generator is configured to generate a dynamic point list by removing the identified points from the complete point list and expose the dynamic point list to a BMS controller communicably connected to the equipment controller.

Abstract: A building management system includes a communications bus, subordinate devices connected to the communications bus, and a controller connected to the communications bus. The controller includes an active node table including a plurality of nodes, each node representing one of the subordinate devices connected to the communications bus. The controller is configured to monitor the active node table for a newly connected subordinate device, use a set of rules to determine whether the newly connected subordinate device is supported by the controller for performing an identified function in combination with the controller, and, in response to a determination that the newly connected subordinate device is supported, extend the identified function of the controller to the newly connected subordinate device. Extending the identified function includes enabling the newly connected subordinate device to perform the identified function.

Abstract: A heating, ventilation, or air conditioning (HVAC) system with automated flow direction detection is provided. The HVAC system includes one or more hoses configured to provide airflow from HVAC equipment, a bidirectional pressure sensor coupled to the hoses, and a controller coupled to the bidirectional pressure sensor. The controller is configured to receive a signal from the bidirectional pressure sensor, determine a direction of the airflow relative to the bidirectional pressure sensor based on the signal, correct the signal for a reversed hose polarity relative to the bidirectional sensor based on the direction of the airflow, and perform a control activity using the corrected signal.

Abstract: An equipment controller in a building management system (BMS) includes a feature detector and a dynamic point list generator. The feature detector is configured to receive sensor input from a sensor and determine a set of features available to the equipment controller based on the sensor input. The dynamic point list generator is configured to determine unavailable features based on the set of available features and identify one or more points in a complete point list associated with the set of unavailable features. The dynamic point list generator is configured to generate a dynamic point list by removing the identified points from the complete point list and expose the dynamic point list to a BMS controller communicably connected to the equipment controller.

Abstract: A variable air volume controller includes a communications interface and a processing circuit. The communications interface is configured to facilitate communication with an external device and building equipment. The processing circuit is configured to store a plurality of predefined, selectable-applications; receive a selection of one of the plurality of predefined, selectable-applications; and implement the selected application such that the building equipment is controlled according to the selected application.

Abstract: A heating, ventilation, or air conditioning (HVAC) system with automated flow direction detection is provided. The HVAC system includes one or more hoses configured to provide airflow from HVAC equipment, a bidirectional pressure sensor coupled to the hoses, and a controller coupled to the bidirectional pressure sensor.

Abstract: Computerized methods and systems for determining flow direction relative to a bidirectional pressure sensor are provided. The method includes receiving pressure information from the bidirectional pressure sensor. The method includes using the pressure information to evaluate, at a processing circuit, pressure at the bidirectional pressure sensor over time, The method includes assigning a flow direction to a current pressure of the bidirectional pressure sensor by comparing the current pressure to at least one past pressure.

Abstract: Computerized methods and systems for determining flow direction relative to a bidirectional pressure sensor are provided. The method includes receiving pressure information from the bidirectional pressure sensor. The method includes using the pressure information to evaluate, at a processing circuit, pressure at the bidirectional pressure sensor over time, The method includes assigning a flow direction to a current pressure of the bidirectional pressure sensor by comparing the current pressure to at least one past pressure.