1764-MM2RTC

Urgent Automation is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply.

Product comes with Urgent Automation's 1-year warranty.

Rated 4.8 with 14 reviews

Rockwell Disclaimer: The product is used surplus. Urgent Automation is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Urgent Automation is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Urgent Automation makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Urgent Automation also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Urgent Automation also makes no representations as to your right to install any such firmware on the product. Urgent Automation will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


1764-MM2RTC

Description: The 1764-MM2RTC is a MicroLogix component is a combined component consisting of a memory module and a Real-Time Clock (RTC).

Urgent Automation is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply.

Product comes with Urgent Automation's 1-year warranty.


Description: The 1764-MM2RTC is a MicroLogix component is a combined component consisting of a memory module and a Real-Time Clock (RTC).


Rated 4.8 with 14 reviews







About 1764-MM2RTC

The 1764-MM2RTC is a combination component for implementing real-time clock accuracy and memory module function in a single module. This module may enable an accurate timestamp of data being stored in the memory module. The Allen-Bradley 1764-MM2RTC memory module and real-time clock memory module has 16 Kilobytes memory. Through the Real-Time Clock (RTC), accurate time-base can be established and made available for the controller for use in triggering functions and sequences such as scheduling of equipment and devices including daylight saving time functions. Typical applications that require this feature are HVAC and BMS processes where load and runtime distribution of equipment is necessary. This module provides an accurate year, month, day of month, day of week, hour, minute values stored in the controller’s data files which can be read and written. Adding the functionality of the memory module, data files saved in the 16KB memory module will have accurate timestamps. Real-time clock accuracy is dependent on the stability of the quartz crystal used over the operating temperature. For Temperature range 0°C (+32°F), the accuracy is +34 to -70 seconds/month. For +25°C (+77°F), +36 to -68 seconds/month. For +40°C (+104°F), +29 to -75 seconds/month and +55°C (+131°F), -133 to -237 seconds/month. Additionally, the Real-Time Clock can be configured via the Data Access Tool (DAT), if one is installed in the MicroLogix controller. It can also be disabled through Disable clock button in the programming workstation. Disabling the clock decreases the drain the in the battery. The MM2RTC support removal under power. When doing so, the component will require a power cycle for the controller to recognize the component again. Practice caution in this step as the power cycle itself may require process stoppage.

Technical specifications:


Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix
Product Type: Memory Module / Real-Time clock
Part Number: 1764-MM1RTC
Supported CPU:1764-LSP; 1764-LRP
Supported Base Units: 1764-AWA; 1764-BWA; 1764-BXB
Memory Size:16 Kbytes
Operating Temperature:0-55 deg.C
Support automatic loading: Yes
Support for removal under power:Yes
Bit control:S:1/11 "Load Memory Module Always
Status bits:S:1/10, S:1/11, S:1/12
Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Product Family: MicroLogix
Product Type: Memory Module / Real-Time clock
Part Number: 1764-MM1RTC
Supported CPU:1764-LSP; 1764-LRP
Supported Base Units: 1764-AWA; 1764-BWA; 1764-BXB
Memory Size:16 Kbytes
Operating Temperature:0-55 deg.C
Support automatic loading: Yes
Support for removal under power:Yes
Bit control:S:1/11 "Load Memory Module Always
Status bits:S:1/10, S:1/11, S:1/12
Common misspellings:
  • l764-MM2RTC
  • 176A-MM2RTC