Building management system with control logic distributed between a virtual controller and a smart edge controller

An edge controller for use in a distributed building management system for controlling a building control device of a building, the edge controller comprising:

• control logic that is configured to:
• provide closed loop control of one or more functions of the building control device as part of an inner control loop, the edge controller configured to be in operative communication with a virtual container or a virtual machine over a network and to receive and execute supervisory control commands generated by the virtual container or the virtual machine as part of an outer control loop of one or more functions of the building control device;
• and
• monitor for a communication failure and/or communication latency with the virtual container or the virtual machine, and when a communication failure and/or communication latency is detected, the control logic of the edge controller is configured to provide closed loop control of the building control device in accordance with a fail-safe function of the building control device.

A distributed building management system for controlling a building control device of a building, the distributed building management system comprising:

• a virtual controller hosted on a computing device, the virtual controller comprising a virtual container or a virtual machine that includes control logic that generates control commands for controlling the building control device;
• and
• an edge controller associated with the building control device, the edge controller includes control logic that is configured to at least selectively provide closed loop control of one or more functions of the building control device, the edge controller in operative communication with the virtual controller and configured to receive and execute the control commands generated by the virtual controller;
• wherein the virtual controller receives one or more parameters from one or more other virtual controllers, wherein the control logic of the virtual controller uses the one or more parameters in determining the control commands;
• and
• wherein when the virtual controller determines that one or more parameters were not received, the control logic of the virtual controller is configured to use one or more fail-safe parameter values in determining the control commands.