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PAC-based machine vision application
The NI CompactRIO Programmable Automation Controller (PAC) is a high-performance, reliable embedded control and data acquisition system designed for demanding industrial applications. Its open architecture, compact size, and rugged design make it ideal for building custom embedded systems using off-the-shelf hardware. With its flexibility and scalability, CompactRIO allows engineers to quickly develop and deploy real-time control solutions.
When paired with the NI Vision Development Module 2009 or later, CompactRIO becomes a powerful platform for machine vision applications in industrial environments. It supports a wide range of use cases such as autonomous robotics, medical imaging devices, and real-time monitoring systems. The integration of vision capabilities makes it an excellent choice for applications requiring accurate image processing and analysis.
This guide covers the process of setting up an IP camera with the CompactRIO system, specifically focusing on the MoviMED AF-1501 C Series Analog Frame Receiver module. The steps include installing the necessary software on both the host PC and the CompactRIO controller, configuring network settings, and testing the camera through the Measurement & Automation Explorer (MAX).
To begin, install the required software on your host computer. This includes NI Vision 9.0 and the NI-IMAQdx 3.4 driver. You can verify the installation by opening the My System icon in MAX. Once confirmed, proceed to install the same software on the CompactRIO controller. In MAX, locate the CompactRIO under the Remote Systems section, right-click on the device, and select "Add/Remove Software." Follow the LabVIEW Real-Time Software Wizard to install the necessary components, including support for IP cameras.
After the software is installed and the system is rebooted, configure the network settings for the CompactRIO. By default, the secondary Ethernet port is inactive, so you need to enable it. Open the Advanced Ethernet Settings, switch the mode to TCP/IP, and assign an IP address like 169.254.0.x with a subnet mask of 255.255.0.0. Save the settings and restart the system if prompted.
Next, connect the IP camera to the secondary Ethernet port of the CompactRIO. If the port lights up, the connection is successful, and the camera should be detected. In MAX, navigate to the NI-IMAQdx device and look for the IP camera, which will be listed as "camX" where X corresponds to the camera’s assigned identifier.
You can now test the camera by capturing still images or video directly from MAX. Adjust acquisition properties and camera settings as needed. Once the camera is working correctly, you can close MAX and note the camera name (e.g., "cam1") for use in LabVIEW.
To integrate the IP camera into a LabVIEW project, create a new project and add the CompactRIO as a target. Use the "Get.vi" template from the IMAQdx examples folder to capture video from the camera. Select the appropriate camera name from the dropdown menu and run the VI to view the live video feed.
This setup enables real-time image processing and control, making CompactRIO a versatile solution for advanced automation and vision applications.