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1764-MM1RTC | Allen-Bradley MicroLogix 1500 Memory Module With Real-Time Clock
- Regular price
- $524.00
- Sale price
- $524.00
- Regular price
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Product Description P/N: 1764-MM1RTC
Description
The Allen-Bradley 1764-MM1RTC is an 8 KB memory module with an integrated real-time clock designed for MicroLogix 1500 controllers. It provides nonvolatile program storage and time-based functionality for applications requiring scheduling or timestamped operations. The 1764-MM1RTC enables automatic program loading and enhances system reliability by retaining data independently of the controller’s battery.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | PLCs/Machine Control |
| Part Number | 1764-MM1RTC |
| Subcategory | Memory & RTC Modules |
| Manufacturer | Rockwell Automation |
| Product Family | MicroLogix |
| Series | MicroLogix 1500 |
| Function | Memory Module with Real-Time Clock |
| Memory Size | 8 KB |
| Additional Features | Integrated RTC, Auto-Load Support |
| Compatible Controllers | 1764-LSP, 1764-LRP |
| Supported Base Units | 1764-AWA, 1764-BWA, 1764-BXB |
| Enclosure Type | IP20 |
| RTC Accuracy (0°C) | +34 to –70 seconds/month |
| RTC Accuracy (+25°C) | +36 to –68 seconds/month |
| RTC Accuracy (+40°C) | +29 to –75 seconds/month |
| RTC Accuracy (+55°C) | –133 to –237 seconds/month |
| Operating Temperature | 0–55°C |
| Battery Life Expectancy | ~5 years (0–40°C) |
| Battery Replaceable | No (module includes indicator) |
| Output Source | Relay and DC FET (controller-dependent) |
Information About 1764-MM1RTC
The 1764-MM1RTC is part of the MicroLogix 1500 option module family, combining expanded memory capacity with real-time clock capabilities in a single unit. Installed directly onto supported terminal bases, it is automatically detected by the controller and supplies accurate date and time data for functions such as scheduling, sequencing, and event logging. The memory module protects programs against loss due to battery depletion and allows program transfer between compatible controllers. Typical usage includes HVAC scheduling, pump cycling, batch processes, and automation tasks requiring consistent time-based control.
Key Features:
- 8 KB nonvolatile memory: Stores user programs and data independently of battery power.
- Integrated real-time clock: Provides year, month, day, day-of-week, hour, and minute information.
- Automatic program loading: Supports controller auto-load for reliable startup behavior.
- Application portability: Allows user programs to be transferred between MicroLogix 1500 controllers.
- Temperature-dependent accuracy: RTC accuracy varies with operating temperature for precise timing.
- Battery status indication: Low-battery warning provides advance notice before RTC failure.
- IP20 housing: Suitable for installation inside protected control enclosures.
- Compatible with multiple bases: Works with 1764-LSP and 1764-LRP controllers and all 1764 terminal bases.
The 1764-MM1RTC delivers the reliability and precision required for time-based control and secure program storage in MicroLogix 1500 automation systems.
Description
The Allen-Bradley 1764-MM1RTC is an 8 KB memory module with an integrated real-time clock designed for MicroLogix 1500 controllers. It provides nonvolatile program storage and time-based functionality for applications requiring scheduling or timestamped operations. The 1764-MM1RTC enables automatic program loading and enhances system reliability by retaining data independently of the controller’s battery.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | PLCs/Machine Control |
| Part Number | 1764-MM1RTC |
| Subcategory | Memory & RTC Modules |
| Manufacturer | Rockwell Automation |
| Product Family | MicroLogix |
| Series | MicroLogix 1500 |
| Function | Memory Module with Real-Time Clock |
| Memory Size | 8 KB |
| Additional Features | Integrated RTC, Auto-Load Support |
| Compatible Controllers | 1764-LSP, 1764-LRP |
| Supported Base Units | 1764-AWA, 1764-BWA, 1764-BXB |
| Enclosure Type | IP20 |
| RTC Accuracy (0°C) | +34 to –70 seconds/month |
| RTC Accuracy (+25°C) | +36 to –68 seconds/month |
| RTC Accuracy (+40°C) | +29 to –75 seconds/month |
| RTC Accuracy (+55°C) | –133 to –237 seconds/month |
| Operating Temperature | 0–55°C |
| Battery Life Expectancy | ~5 years (0–40°C) |
| Battery Replaceable | No (module includes indicator) |
| Output Source | Relay and DC FET (controller-dependent) |
Information About 1764-MM1RTC
The 1764-MM1RTC is part of the MicroLogix 1500 option module family, combining expanded memory capacity with real-time clock capabilities in a single unit. Installed directly onto supported terminal bases, it is automatically detected by the controller and supplies accurate date and time data for functions such as scheduling, sequencing, and event logging. The memory module protects programs against loss due to battery depletion and allows program transfer between compatible controllers. Typical usage includes HVAC scheduling, pump cycling, batch processes, and automation tasks requiring consistent time-based control.
Key Features:
- 8 KB nonvolatile memory: Stores user programs and data independently of battery power.
- Integrated real-time clock: Provides year, month, day, day-of-week, hour, and minute information.
- Automatic program loading: Supports controller auto-load for reliable startup behavior.
- Application portability: Allows user programs to be transferred between MicroLogix 1500 controllers.
- Temperature-dependent accuracy: RTC accuracy varies with operating temperature for precise timing.
- Battery status indication: Low-battery warning provides advance notice before RTC failure.
- IP20 housing: Suitable for installation inside protected control enclosures.
- Compatible with multiple bases: Works with 1764-LSP and 1764-LRP controllers and all 1764 terminal bases.
The 1764-MM1RTC delivers the reliability and precision required for time-based control and secure program storage in MicroLogix 1500 automation systems.