A device for use in a building management system (BMS) includes a base hardware component that provides communication between the equipment and a first network associated with the BMS. The base hardware component includes a processor and a memory. The device further includes a modular hardware component connected to the base hardware component and a modular software component stored in the memory that recognizes the modular hardware component connected to the base hardware component and provides communication between the equipment and a second network using the modular hardware component. The processor executes a control application to control operation of the equipment based in part on data received from the equipment and data received from at least one of the first network and the second network.