Description
The Allen‑Bradley 2080‑MEMBAK‑RTC is a specialized plug‑in module from Rockwell Automation’s Bulletin 2080 Micro800™ controller family, designed to provide both non‑volatile memory backup and a high‑accuracy real‑time clock (RTC) for industrial control applications. This compact accessory snaps directly into the controller’s side slot, delivering reliable data retention during power outages and enabling precise time‑stamping for event logging, scheduled operations, and process automation tasks.
Application Scenarios
Imagine a water treatment facility where pumps must activate at precise intervals based on time‑of‑use tariffs, or a food processing line requiring accurate batch timestamps for traceability audits. When a momentary power flicker occurs, a standard PLC without RTC backup loses its internal clock, causing log errors and missed schedules. The 2080‑MEMBAK‑RTC eliminates this risk by maintaining continuous timekeeping with a long‑life internal battery while also preserving the user program and critical data on its 1MB non‑volatile memory. For OEM machine builders, this module enables simple field upgrades—operators can clone or update application code across multiple Micro830 and Micro850 controllers using the module without needing a laptop connection.
Parameters
| Main Parameters | Value/Description |
|---|---|
| Product Model | Allen‑Bradley 2080‑MEMBAK‑RTC |
| Manufacturer | Rockwell Automation / Allen‑Bradley |
| Product Category | Memory Backup & RTC Plug‑in Module |
| Memory Capacity | 1 MB (project backup, data logging, recipe storage) |
| Real‑Time Clock | High‑accuracy RTC with battery backup; no periodic calibration required |
| Compatibility | Micro830® and Micro850® controllers only (not Micro810/820/870) |
| Battery Type | Internal 3.6V rechargeable lithium battery (typical life 3–5 years) |
| Operating Temperature | –20°C to +65°C (–4°F to 149°F) |
| Storage Temperature | –40°C to 85°C (–40°F to 185°F) |
| Mounting | Plug‑in installation (controller slot 1 only) with M3 securing screw |
| Mounting Torque | 0.2 Nm (1.48 lb‑in) |
| Status Indicator | Red LED (solid 2s = startup test; flashing = backup in progress; solid continuous = battery low) |
| North American Temp Code | T4 |
| Lifecycle Status | Active |
Technical Principles and Innovative Values
Innovation Point 1: Integrated Memory Backup and High‑Accuracy RTC in One Module
The 2080‑MEMBAK‑RTC combines two critical functions into a single plug‑in accessory: non‑volatile project storage and precision timekeeping. This eliminates the need for separate RTC battery modules or external SD card solutions, reducing cost and panel complexity. The module stores a complete backup copy of the controller’s user program, data logs, and recipes, enabling rapid recovery after controller replacement or program corruption.
Innovation Point 2: RIUP Support for Zero‑Downtime Maintenance
The module supports Removal and Insertion Under Power (RIUP) in non‑hazardous locations, allowing technicians to replace or install the 2080‑MEMBAK‑RTC without shutting down the control system. This feature dramatically reduces maintenance downtime and is particularly valuable for continuous process applications where unplanned stoppages are costly.
Innovation Point 3: Temperature Hardened for Industrial Environments
With a wide operating range of –20°C to 65°C and storage capability down to –40°C, the 2080‑MEMBAK‑RTC delivers reliable performance in harsh environments including cold storage facilities, outdoor kiosks, and high‑temperature manufacturing zones. The T4 North American temperature code rating confirms its suitability for hazardous location installations.
Innovation Point 4: Seamless Integration Without Footprint Increase
Unlike add‑on memory cards that require external readers or cabled adapters, the 2080‑MEMBAK‑RTC plugs directly into a dedicated slot on the controller side, maintaining the compact panel footprint of the Micro800 system. The M3 securing screw ensures vibration‑resistant retention in high‑shock environments.
