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Product Description
The Allen Bradley 1785-KA is a PLC 5 communication adapter module that bridges Data Highway Plus and Data Highway networks. It occupies a single slot in a 1771 I/O chassis, drawing 1.5A at 5V DC. It connects to Data Highway via a 15-pin D-shell connector, Data Highway Plus via a 3-screw terminal block, and optionally to a 1784-T50 terminal via a 9-pin D-shell connector, all at 57.6 kbps. Six switch assemblies (SW1-SW6) configure communication options, including Data Highway/Data Highway Plus rates (SW1) and node addresses (SW4-SW6). The module is keyed between pins 4/6 and 24/26 and operates between 0-60C, with a storage temperature range of -40 to 85C.
Is Your Device Showing These Signs?
The Allen Bradley 1785-KA PLC processor commonly experiences issues such as memory corruption leading to program faults, backplane communication failures causing I/O module errors, and power supply degradation resulting in intermittent system shutdowns. Resolve these issues by performing a memory clear and reload, verifying backplane connections and replacing faulty modules, and replacing the power supply with a compatible unit. Firmware upgrades address software bugs and improve system stability. Regularly inspect and replace the battery to prevent data loss.
Technical specifications
The Allen Bradley 1785-KA is a PLC 5 communication adapter module that allows communication between Data Highway Plus and Data Highway networks. It's a single-slot module for a 1771 I/O chassis, requiring 1.5A at 5V DC. It connects to Data Highway via a 15-pin D-shell, Data Highway Plus via a 3-screw terminal, and optionally a 1784-T50 terminal via a 9-pin D-shell, all at 57.6 kbps. Six switch assemblies configure communication settings like data rates and node addresses. It's keyed for proper insertion and operates within a temperature range of 0-60C.
Our Repair Process for the
1785-KA
Our repair process for the Allen Bradley 1785-KA PLC processor begins with diagnosing the fault, addressing common issues such as memory corruption by performing a memory clear and reload, resolving backplane communication failures by verifying connections and replacing faulty I/O modules, and correcting intermittent system shutdowns by replacing the degraded power supply with a compatible unit. The processor then receives firmware upgrades to address software bugs and improve system stability. The battery is inspected and replaced to prevent data loss, ensuring the PLC operates within specified parameters.
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.
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Ships from Rochester, NY