Day 2 - Reading Data Points

During the lesson for day 1, you created a ping request, device id, device, receiver, communicator, network, and ping response. This allowed you to use the developer driver framework to model your driver's device in Niagara AX and allow Niagara AX to automatically ping the actual device on the field-bus and then report whether the status of the device is ok or down. After completing the lesson for day 2, you will have driver control points that Niagara AX will automatically poll (to pull point values into Niagara AX). The process of doing this will be similar to what you followed on day 1.

field-bus: A network that connects equipment together.
field-device: A single unit of external equipment that is connected to a field-bus.
driver device: A special component in the Niagara AX framework that virtually represents a field-device.
point value: Individual data measurement or setpoint that a field-device makes externally available to other field-devices or equipment for read and/or write access using field-bus communication.
driver control point: A special component in the Niagara AX framework that virtually represents a point value.
frozen property: A special kind of Niagara AX property on a Niagara AX component that (among other benefits) you can easily access from Java source code.

Day 2 - Reading Data Points

Chapters - Day 2