Product Description
The Allen-Bradley 1788-CNF, a ControlNet network daughter card for FlexLogix and DriveLogix systems, connects to the ControlNet network via A and B optical cable connectors, ideally using Rockwell Automation/Allen-Bradley approved cables (1786-FS10, 1786-FS20, etc.) based on length. This single-channel optical interface features A and B status indicators and can also be accessed for programming via a 1786-CP cable plugged into the NAP connector. To prevent electrical arcing, install or remove the 1788-CNF only when the host module is unpowered. A steady red indicator signifies a major fault. Operating within a 0-60C range, the module requires a 5V DC supply and consumes 2.2 Watts.
Is Your Device Showing These Signs?
The Allen Bradley 1788-CNF communication interface module commonly experiences issues related to corrupted firmware, resulting in communication failures on the ControlNet network. Resolve this by reflashing the firmware using ControlFlash software and verifying proper network configuration parameters, including node address and baud rate. Diagnose physical layer problems such as damaged connectors or cabling, which impede network communication. Address configuration errors within RSLogix 5000 that prevent the PLC from properly communicating with the 1788-CNF module. Finally, ensure the power supply provides adequate voltage and current to the module, as insufficient power causes intermittent operational faults.
Technical specifications
The Allen-Bradley 1788-CNF is a ControlNet network card for FlexLogix/DriveLogix systems. It uses A/B optical cables (preferably Rockwell Automation approved) for network connection. It has status indicators, can be programmed via a 1786-CP cable, and should only be installed/removed when the host module is off to avoid arcing. A steady red light indicates a major fault. It operates between 0-60C, requires 5V DC, and consumes 2.2 Watts.
Our Repair Process for the
1788-CNF
Our repair process for the Allen Bradley 1788-CNF communication interface module begins with reflashing the firmware using ControlFlash software, followed by verification of correct network configuration parameters, specifically node address and baud rate. Next, we diagnose and rectify any physical layer problems, including inspection and repair of damaged connectors or cabling. Configuration errors within RSLogix 5000, which hinder PLC communication with the 1788-CNF module, are then addressed. Finally, we confirm the power supply delivers sufficient voltage and current to the module to prevent operational faults.
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.