Allen Bradley 1764-RTC MicroLogix 1500 Real-Time Clock Module

Product Overview

The Allen Bradley 1764-RTC provides essential time-keeping and scheduling capabilities for the MicroLogix™ 1500 controller platform. This module snaps directly into the processor to enable precise time-stamping of fault logs, event scheduling, and time-of-day control logic. While the manufacturer has officially moved this series to obsolete status, we supply this unit as 100% brand new and original, allowing you to maintain legacy systems with authentic, high-precision timing hardware.

Technical Specifications

The 1764-RTC maintains strict timing accuracy across industrial temperature ranges:

Engineering Advantages

• Seamless Temporal Synchronization: The 1764-RTC allows the MicroLogix 1500 to execute time-of-day logic for building automation, lighting control, and shift-based production scheduling. It ensures the controller maintains an accurate calendar even during extended power outages.

• Integrated Diagnostics: The module utilizes a dedicated status bit (RTC:0/BL) within the controller's memory. This feature allows the user program to trigger local alarms or HMI messages when the internal battery reaches a low-voltage state, preventing unexpected loss of time data.

• Zero-Downtime Maintenance: The module supports "Removal and Insertion Under Power" (RIUP). Engineers replace or install the module while the system remains energized, eliminating the need to cycle power to the entire control chassis during maintenance.

• Compact Plug-in Design: The hardware seats firmly into the processor's dedicated expansion port. This internal mounting style protects the module from external EMI and mechanical vibration while preserving valuable DIN rail space.

• Robust Data Integrity: The internal battery provides a minimum 5-year operating life under standard conditions. This high-capacity cell ensures the clock continues to track minutes, hours, and years accurately during warehouse storage or long-term system shutdowns.

FAQs

• Can the internal battery of the 1764-RTC be replaced?

  No. The 1764-RTC features a non-replaceable built-in battery designed for a 5-year lifespan. When the "Battery Low" bit (RTC:0/BL) activates, you must replace the entire module to ensure continued time-keeping reliability.

• Is this a genuine, brand-new unit since the series is discontinued?

  Absolutely. We guarantee that every 1764-RTC we ship is 100% brand new and arrives in original factory packaging. We specialize in providing authentic, factory-sealed legacy hardware to ensure E-E-A-T procurement standards.

• Does the 1764-RTC provide additional user memory?

  No. The 1764-RTC only provides real-time clock functionality. If your application requires additional program storage, you must utilize a memory module such as the 1764-MM1 or 1764-MM2.

• How do I set the time on the 1764-RTC?

  You configure and synchronize the clock through the "Channel Configuration" or "Function Files" menu in RSLogix 500 software. You can also use a "Set Real-Time Clock" (RTC) instruction within the ladder logic to adjust the time programmatically.