Genuine PLC 1764-MM1 MicroLogix 1500 (1764 series) - Industrial Automation Part

AB | 1764-MM1 | 8 KB Memory Module

SKU: 1764-MM1 Category: Allen-Bradley

Description

Allen-Bradley 1764-MM1 8 KB Memory Module | Replacement, Equivalent & Selection Guide

The Allen-Bradley 1764-MM1 is an 8 KB memory expansion module designed for the MicroLogix 1500 programmable logic controller (PLC) platform. It extends the base controller’s user program and data memory capacity, enabling more complex ladder logic, function block, and structured text programs. This guide covers technical specifications, compatible replacements, application scenarios, and sourcing information to help engineers and procurement teams make confident selection decisions.

Technical Specifications

Part Number: 1764-MM1
Manufacturer: Allen-Bradley / Rockwell Automation
Memory Capacity: 8 KB (8,192 bytes)
Compatible Platform: MicroLogix 1500 (1764 series)
Memory Type: User program and data memory expansion
Form Factor: Plug-in memory module
Programming Software: RSLogix 500 / Studio 5000 Logix Designer (legacy)
Communication: Via MicroLogix 1500 base unit
Operating Temperature: 0°C to 60°C (32°F to 140°F)
Storage Temperature: -40°C to 85°C
Relative Humidity: 5% to 95% (non-condensing)
Weight: Approx. 50 g
Certifications: UL, CE, CSA

Compatible Replacement & Equivalent Models

When the original 1764-MM1 is unavailable or end-of-life, the following models may serve as functional replacements depending on your application requirements:

1764-MM2 — Allen-Bradley 16 KB memory module for MicroLogix 1500; direct platform-compatible upgrade with double the capacity
1764-MM3 — Allen-Bradley 32 KB memory module; recommended for complex programs requiring larger data tables
1764-LRP — MicroLogix 1500 LRP processor with built-in expanded memory; suitable for full controller replacement scenarios
1764-LSP — MicroLogix 1500 LSP base unit; verify memory slot compatibility before substitution
Third-party SRAM modules — Some aftermarket suppliers offer pin-compatible 8 KB SRAM modules; verify electrical and firmware compatibility before deployment

Note: Always verify firmware revision compatibility between the memory module and the MicroLogix 1500 base unit before installation.

Why Choose the Original Model

OEM Guaranteed Compatibility: Factory-tested and validated for MicroLogix 1500 platforms with no firmware conflicts
Rockwell Automation Support: Full technical support, firmware updates, and lifecycle documentation available
Proven Reliability: Designed to industrial-grade standards for continuous 24/7 operation in harsh environments
Regulatory Compliance: UL/CE/CSA certified for use in regulated industries including food & beverage, pharmaceuticals, and utilities
Seamless RSLogix 500 Integration: Recognized natively by RSLogix 500 without additional configuration steps

Typical Applications

Manufacturing automation lines requiring expanded PLC program storage
HVAC and building management systems using MicroLogix 1500 controllers
Water and wastewater treatment plant control panels
Conveyor and material handling systems with complex sequencing logic
OEM machine builders upgrading base MicroLogix 1500 memory capacity
Retrofit and modernization projects extending the life of existing 1764-series installations

System Compatibility

Compatible Controllers: MicroLogix 1500 (all 1764-series base units)
Programming Software: RSLogix 500 v7.0 and above
Communication Protocols: DF1, DH-485 (via base unit)
I/O Expansion: Compatible with 1769 Compact I/O modules via MicroLogix 1500 base
Not Compatible With: MicroLogix 1000, 1100, 1200, or 1400 series; CompactLogix or ControlLogix platforms

Selection Guide

Use the following criteria to select the correct memory module for your MicroLogix 1500 application:

Program Size < 8 KB: 1764-MM1 (this module) — ideal for simple to moderate control programs
Program Size 8–16 KB: Consider upgrading to 1764-MM2 for headroom and future expansion
Program Size > 16 KB: 1764-MM3 (32 KB) recommended; evaluate migration to CompactLogix if program complexity continues to grow
Replacement/Spare Part: Order 1764-MM1 as a direct like-for-like replacement; confirm base unit firmware version
New Installation: Assess total program and data table requirements before selecting module size; oversizing is low-cost insurance

Quality Assurance & Sourcing

All units sourced through authorized distribution channels or verified surplus inventory
Each module inspected for physical integrity, label authenticity, and firmware version prior to shipment
Anti-static packaging and ESD-safe handling throughout the supply chain
Traceability documentation available upon request (batch records, country of origin)
Warranty: 12 months from date of shipment against manufacturing defects

How to Order

Part Number: 1764-MM1
Minimum Order Quantity: 1 unit
Lead Time: In-stock items ship within 1–3 business days; contact us for bulk order scheduling
Payment: T/T, PayPal, credit card, and trade account options available
Shipping: DHL, FedEx, UPS worldwide; sea freight available for large orders
RFQ / Bulk Pricing: Contact support@konmask.com or call +0086 19859288691

Replacement & Compatibility FAQ

Q: Can I use the 1764-MM1 in a MicroLogix 1200?
A: No. The 1764-MM1 is exclusively designed for the MicroLogix 1500 (1764 series). MicroLogix 1200 uses a different memory architecture and is not compatible.

Q: Is the 1764-MM2 a drop-in replacement for the 1764-MM1?
A: Yes, the 1764-MM2 is physically and electrically compatible with the same MicroLogix 1500 slot. It provides 16 KB instead of 8 KB and is fully backward compatible with existing programs.

Q: Do I need to re-program the controller after installing a new 1764-MM1?
A: If replacing a failed module, you will need to reload your program from RSLogix 500 or from a backup memory card. The module itself does not retain the program from the previous unit.

Q: What is the difference between 1764-MM1, MM2, and MM3?
A: The only difference is memory capacity: MM1 = 8 KB, MM2 = 16 KB, MM3 = 32 KB. All are compatible with the MicroLogix 1500 platform.

Q: Are aftermarket/third-party memory modules safe to use?
A: Third-party modules may work in some cases but are not validated by Rockwell Automation. For critical production environments, we recommend using genuine Allen-Bradley modules to ensure firmware compatibility and avoid unexpected faults.