Product Description
The Allen-Bradley 1764-MM2RTC is a MicroLogix 1500 series memory and real-time clock module compatible with 1764-LRP and 1764-LSP controllers. It provides 16KB of non-volatile memory for program and data storage, including backups, data file protection, and program comparison, without relying on battery power. The real-time clock supplies date and time information to the controller, crucial for applications like HVAC and BMS systems where time-based equipment rotation ensures even runtime and improved reliability. The module is hot-swappable, but requires a power cycle or mode change to be recognized if installed during RUN mode. Real-time clock accuracy varies with temperature, ranging from +34 to -70 seconds/month at 0C to -133 to -237 seconds/month at +55C.
Is Your Device Showing These Signs?
The Allen Bradley 1764-MM2RTC MicroLogix 1500 real-time clock module commonly experiences issues related to battery failure, resulting in data loss and inaccurate time stamps, necessitating battery replacement and memory reprogramming. Communication problems arise due to corrupted firmware, requiring firmware upgrades or module replacement. Intermittent failures occur due to capacitor degradation on the circuit board, demanding component-level repair or module replacement. Configuration errors within the PLC program cause incorrect time synchronization, mandating program verification and parameter adjustments. Physical damage to the connector pins leads to communication disruptions, necessitating connector repair or module replacement.
Technical specifications
The Allen-Bradley 1764-MM2RTC is a memory and real-time clock module for MicroLogix 1500 controllers (1764-LRP and 1764-LSP). It offers 16KB of non-volatile memory for program/data storage and backups, and a real-time clock for time-sensitive applications like HVAC and BMS. While hot-swappable, it needs a power cycle or mode change to be recognized if installed during RUN mode. The real-time clock's accuracy is temperature-dependent.
Our Repair Process for the
1764-MM2RTC
Our repair process for the Allen Bradley 1764-MM2RTC MicroLogix 1500 real-time clock module begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction, which includes assessing battery health, communication integrity, component condition, program configuration, and connector integrity. Battery failures are resolved through direct battery replacement, followed by memory reprogramming to restore accurate time stamps. Communication problems stemming from corrupted firmware are addressed via firmware upgrades; unresolved issues necessitate module replacement. Intermittent failures attributed to capacitor degradation are rectified through component-level repair; irreparable damage results in module replacement. Configuration errors within the PLC program are corrected through thorough program verification and parameter adjustments. Physical damage to connector pins is resolved via connector repair; extensive damage mandates module replacement.
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