Product Description
The Allen Bradley PLC-5-80 (1785-L80B) is a core component of PLC-5 control systems, integrating local, extended, and remote I/O modules via various communication interfaces. It features four configurable ports (1A, 1B, 2A, 2B) that can function as remote I/O scanners, remote I/O adapters, or DH+ communication interfaces for programming, monitoring, and peer-to-peer communication. Channel 0, an optically isolated RS232C port with ASCII and DF1 protocol support, is also present. DH+ cable length is rate-dependent, ranging from 3048m at 57.6 kbps to 762m at 230.4 kbps, requiring consistent rates across all devices. The front panel includes indicators for battery (BATT), processor mode (PROC), I/O force status (FORCE), channel 0 communication (COMM), and individual channel (1A, 1B, 2A, 2B) status.
Is Your Device Showing These Signs?
The Allen Bradley PLC-5/80 commonly experiences issues such as processor faults stemming from memory corruption or power supply degradation, requiring memory module replacement or power supply repair. Communication failures on the DH+ network are addressed through cable inspections, node configuration verification, and potential network interface card replacement. Program corruption due to power fluctuations or improper shutdowns necessitates memory clearing and program reloading from a verified backup. I/O module failures are resolved by diagnosing the specific module fault, replacing the faulty module, and reconfiguring the I/O tree within the PLC program. Backplane issues, including corrosion or damaged connectors, demand backplane cleaning, connector repair, or complete backplane replacement to ensure reliable module communication.
Technical specifications
The Allen Bradley PLC-5-80 (1785-L80B) is a central PLC-5 component that manages local, extended, and remote I/O through multiple communication interfaces. It has four configurable ports (1A, 1B, 2A, 2B) that can act as remote I/O scanners/adapters or DH+ interfaces. It also includes an RS232C Channel 0 port. DH+ cable length depends on the communication rate, and the front panel provides status indicators for various functions.
Our Repair Process for the
PLC-5-80
Our repair process for the Allen Bradley PLC-5/80 begins with a thorough diagnostic assessment to pinpoint the root cause of the malfunction, whether it be processor faults, communication failures, program corruption, I/O module failures, or backplane issues. Processor faults are resolved through memory module replacement or power supply repair. Communication failures are addressed via cable inspections, node configuration verification, and network interface card replacement. Program corruption requires memory clearing and program reloading from a verified backup. I/O module failures are resolved by diagnosing the specific module fault, replacing the faulty module, and reconfiguring the I/O tree within the PLC program. Backplane issues demand backplane cleaning, connector repair, or complete backplane replacement. Each step ensures the PLC-5/80 is restored to optimal operational condition.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY