PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-HM is a 32K CMOS memory module designed for the PLC-5 system. It installs directly into a compatible module slot within a standard 1771 PLC I/O chassis. This unit features battery-backed data retention to preserve stored information during power loss events.
The module operates as a plug-in cartridge engineered for integration with IMC-12x motion controllers. It demonstrates an operating efficiency rating of 0.98 in demanding industrial environments. The direct plug interface allows fast maintenance and straightforward hardware replacement inside the control rack.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 0.25 lbs (0.11 kg) |
|---|
| Retention | Battery-backed |
|---|
| Interface | Direct plug |
|---|
| Capacity | 32K |
|---|
| Memory Type | CMOS |
|---|
| System | PLC-5 I/O chassis |
|---|
| Mounting | Module slot |
|---|
| Format | Plug-in cartridge |
|---|
| Use case | IMC-12x controllers |
|---|
| Environment | Industrial use |
|---|
| Compatibility | 1771 PLC system |
|---|
| Efficiency | 0.98 |
|---|
TECHNICAL INFORMATION
Features
- 32K CMOS memory architecture for application data storage.
- Battery-backed data retention prevents memory loss during power interruption.
- Direct plug interface connects directly to standard 1771 module slots.
- Compact plug-in cartridge format simplifies replacement and hardware maintenance.
- Evaluated efficiency rating of 0.98 under typical industrial operating conditions.
TECHNICAL INFORMATION
Applications
- Industrial data storage and program execution within Allen-Bradley PLC-5 control systems.
- Motion control configurations utilizing Allen-Bradley IMC-12x series controllers.
TECHNICAL INFORMATION
Connections / Interfaces
- Direct plug edge interface designed for 1771 I/O chassis slots.
TECHNICAL INFORMATION
Installation Guidelines
- Align the module cartridge with the designated slot inside the 1771 I/O chassis.
- Press the module firmly into the chassis connector until fully seated.
- Verify battery retention integrity prior to loading critical controller program data.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley 1771 PLC systems and I/O chassis assemblies.
- Designed for specific use with IMC-12x motion controllers.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley 1771 PLC systems and I/O chassis assemblies. Designed for specific use with IMC-12x motion controllers.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1771-HM?
The 1771-HM is a 32K CMOS memory module providing battery-backed data storage for PLC-5 systems.
Which controllers support the 1771-HM memory module?
The module is designed for 1771 PLC systems and pairs directly with IMC-12x controllers.
What is the market reference price for the 1771-HM?
Observed market reference pricing is approximately 99.00 USD. Figures are indicative reference pricing only and not a final quotation.
