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Product Description
The Allen-Bradley 1791ES-IB16 is a CompactBlock EtherNet/IP safety input module designed for SIL CL3/CAT 4/PLe safety-control networks. It features 16 safety inputs (current sinking, IEC 61131-2 type 3), 16 current-sourcing pulse test outputs with short circuit protection (0.7A per output, 8A total @ 60C), and a 24V DC bipolar safety output (2A per point, 6A total @ 60C). It's housed in an IP54 or higher enclosure, has an isolation voltage of 50V DC (tested at 800V DC), and dimensions of 80mm x 196mm x 77mm, weighing 600g. Recommended wiring is 0.341.5 mm2 (2216 AWG) copper wire. It supports dual-channel and single-channel safety configurations for various safety categories and performance levels.
Is Your Device Showing These Signs?
The Allen Bradley 1791ES-IB16 I/O block commonly experiences issues such as communication failures stemming from corrupted backplane connectivity or a malfunctioning EtherNet/IP adapter. Input modules frequently exhibit problems with field wiring terminations, leading to open circuits or short circuits that prevent proper signal transmission. Internal component degradation, specifically electrolytic capacitor failure on the power supply board, results in intermittent operation or complete module failure. Resolving these problems involves inspecting and reseating the backplane connection, verifying field wiring integrity, and replacing faulty capacitors or the entire I/O block when necessary. Firmware corruption also occurs, necessitating a firmware update or re-flash to restore proper functionality.
Technical specifications
The Allen-Bradley 1791ES-IB16 is a CompactBlock EtherNet/IP safety input module for SIL CL3/CAT 4/PLe safety applications. It has 16 safety inputs, 16 pulse test outputs with short circuit protection, and a 24V DC bipolar safety output. It's designed with an IP54 or higher enclosure, specific isolation voltage, dimensions, weight, and wiring recommendations, and supports both dual and single-channel safety configurations.
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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.
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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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