Product Description
The Allen-Bradley 1785-LT3 PLC module features 512 I/O, DH+ and Remote I/O (adapter only) channels, 6K words of memory, and a Control Coprocessor Expansion Port. Its DH+ connection enables remote programming, data transfer to higher-level systems, and communication with other processors and programming terminals, supporting up to 64 stations. It operates between 0-60 C (32-140 F) and can be stored between -40-85 C (-40-185 F). The module provides a control strategy, hardware selection/layout/addressing features, 57.6 kbps Remote I/O transmission rates, sequential function chart (SFC) capabilities, and special programming features, allowing for program development, entry, testing, and application. Its advanced functional specifications also allow it to be used as a document sign-off program. Backplane current is 2.5 A at 5V DC.
Is Your Device Showing These Signs?
The Allen Bradley 1785-LT3 PLC processor commonly experiences issues related to memory corruption, requiring memory module replacement or reprogramming of the PLC logic. Backplane communication failures are frequent, necessitating inspection and repair of the backplane connector and associated wiring. Power supply degradation leads to intermittent operation; replace the power supply to ensure stable voltage levels. Firmware corruption causes operational errors; a firmware upgrade resolves these issues. Finally, battery depletion results in loss of volatile memory; replace the battery to maintain program retention.
Technical specifications
The Allen-Bradley 1785-LT3 PLC module offers 512 I/O, DH+ and Remote I/O (adapter only) communication, 6K words of memory, and a Control Coprocessor Expansion Port. It supports remote programming and data transfer via DH+, operating in temperatures from 0-60 C. Key features include control strategy options, Remote I/O transmission at 57.6 kbps, SFC capabilities, advanced programming features, and document sign-off functionality. It requires 2.5A backplane current at 5V DC.
Our Repair Process for the
1785-LT3
Our repair process for the Allen Bradley 1785-LT3 PLC processor begins with a thorough diagnostic assessment to pinpoint the failure. If memory corruption is detected, the memory module is replaced or the PLC logic is reprogrammed. Backplane communication failures require immediate inspection and repair of the backplane connector and all associated wiring. Power supply degradation is addressed by replacing the power supply unit to guarantee stable voltage levels. Operational errors caused by firmware corruption are resolved through a mandatory firmware upgrade. To prevent loss of volatile memory, the battery is replaced as a standard procedure.
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
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Ships from Rochester, NY