Product Description
The Mitsubishi Electric QJ71NT11B MELSECNET/H network module from the MELSEC-Q (QnU) series facilitates device networking and data transmission in industrial automation via a twisted-pair, daisy-chained network. Supporting MASTER/LOCAL configurations for centralized or distributed control, it offers adjustable communication speeds from 156 kbps to 10 mbps and utilizes token bus technology with frame synchronization over an RS-485 bus. The module supports up to 239 networks and 32 groups, accommodating large-scale networks with up to 32 stations per network (one control, 31 standard), using standard or CC-Link version 1.10 twisted pair cables. It occupies 32 I/O points, consumes 0.6A at 5V DC, and measures 98mm x 27.4mm x 90mm, requiring 2-core twisted pair cables for operation.
Is Your Device Showing These Signs?
The Mitsubishi QJ71NT11B Ethernet interface module commonly experiences issues such as communication failures due to incorrect IP address configurations, subnet mask mismatches, or gateway settings. Hardware failures including damaged Ethernet ports or internal component degradation cause intermittent or complete loss of network connectivity. Software related problems such as firmware corruption or incompatibility with the PLC CPU result in communication errors or system crashes. Resolve these issues through proper network parameter verification, hardware inspection and replacement, and firmware updates or re-installation.
Technical specifications
The Mitsubishi Electric QJ71NT11B MELSECNET/H module enables industrial device networking and data transmission using a twisted-pair, daisy-chained network. It supports MASTER/LOCAL configurations, adjustable speeds (156 kbps - 10 mbps), token bus technology, and accommodates up to 239 networks and 32 groups with 32 stations per network. It uses standard or CC-Link version 1.10 cables, occupies 32 I/O points, consumes 0.6A at 5V DC, and measures 98mm x 27.4mm x 90mm.
Our Repair Process for the
QJ71NT11B
Our repair process for the Mitsubishi QJ71NT11B Ethernet interface module begins with a thorough verification of network parameters, including IP address, subnet mask, and gateway settings, to ensure correct configuration. A meticulous hardware inspection follows, focusing on the Ethernet port and internal components, with replacement of any damaged parts. If hardware is not the issue, we proceed with firmware updates or re-installation to rectify any software-related problems, such as corruption or incompatibility with the PLC CPU. This multi-faceted approach guarantees a comprehensive resolution to communication failures, hardware malfunctions, and software errors, restoring the module to full operational status.
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