Product Description
The Allen-Bradley 1794-ACNR is a ControlNet communication adapter within the 1794 Flex I/O family, enabling data exchange between Flex I/O modules and a controller via the ControlNet protocol. It supports redundant ControlNet connections through two ports, each capable of 5 Mbps transmission using Belden RG-6/U cable, facilitating a high-availability network. Up to eight Flex I/O modules (discrete, analog, or specialty) can be connected, with the 1794-ACNR transmitting input data and executing controller commands via output modules. Powered by a 19.2-31.2V DC external supply, it features LED indicators for troubleshooting, 50V isolation voltage, and an operating temperature range of -20 to 55C. It requires an enclosure due to its open-type design. Key specifications include a maximum Flexbus output current of 640mA at 5V DC, power dissipation of 4.6W at 19.2V DC, thermal dissipation of 15.7 BTU/hour, vibration resistance of 5G (10-500 Hz), and shock resistance of 30G (operating) and 50G (non-operating). It features status and communication LEDs, DIN rail or panel mounting options, measures 3.7 x 3.6 x 3.4 inches, uses ControlNet protocol v1.25, and supports up to eight Flex I/O modules, requiring a SELV or PELV power supply for CE LVD compliance.
Is Your Device Showing These Signs?
The Allen Bradley 1794-ACNR often presents issues related to network communication failures on DeviceNet. Troubleshooting typically involves verifying proper DeviceNet cable termination, addressing node conflicts, and confirming the baud rate settings match the network configuration. Power supply problems and corrupted EDS files also contribute to communication errors. Firmware upgrades and replacement of the communication adapter resolve persistent connectivity issues.
Technical specifications
The Allen-Bradley 1794-ACNR is a ControlNet adapter for Flex I/O systems, allowing communication between I/O modules and a controller over a redundant ControlNet network. It supports up to eight Flex I/O modules, uses a 19.2-31.2V DC power supply, and features LED indicators for diagnostics. Key features include dual ControlNet ports, 50V isolation, a wide operating temperature range, and robust vibration and shock resistance. It requires an enclosure and supports DIN rail or panel mounting.
Our Repair Process for the
1794-ACNR
Our repair process for the Allen Bradley 1794-ACNR begins with a comprehensive diagnostic evaluation to pinpoint the cause of network communication failure. This includes verification of DeviceNet cable termination, resolution of node conflicts, and confirmation of appropriate baud rate settings. We investigate power supply functionality and examine EDS files for corruption. If necessary, we proceed with firmware upgrades or complete replacement of the communication adapter to restore optimal connectivity and functionality.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.