Alerton VLC-550C3 Programmable Controller Module

The Alerton VLC-550C3 BACtalk Programmable Controller Module is a compact BACnet MS/TP field controller designed for small-to-mid size building automation HVAC control networks. It provides five analog inputs and five binary outputs for sensing and actuation, and it is powered from a 24 VAC supply suitable for standard HVAC wiring. As a member of the VLC family, the VLC-550C3 runs Alerton Direct Digital Control (DDC) logic and is programmed with Alerton tools to implement customized control sequences, while communicating on the BACtalk MS/TP network with other controllers and the building management system. This module serves as a local controller that can operate independently for simple sequences or integrate with a larger BACnet network for centralized monitoring and coordination, helping maintain occupancy comfort, energy efficiency, and equipment performance through precise local control and data reporting.