Purchase now the 2080-MEMBAK-RTC, a high-utility plug-in module designed to enhance the data integrity and scheduling capabilities of Allen-Bradley Micro800 controllers. This dual-purpose accessory provides a critical memory safety net and a high-accuracy clock for professional industrial automation projects.
What Is the 2080-MEMBAK-RTC?
The 2080-MEMBAK-RTC is a specialized plug-in module belonging to the Micro800 accessory family, compatible with Micro820, Micro830, Micro850, and Micro870 controllers. It integrates two essential functions into a single hardware slot: a non-volatile memory backup for the controller’s project files and a Real-Time Clock (RTC) for time-stamping and scheduled operations. In industrial environments where power fluctuations or long-term outages are common, the 2080-MEMBAK-RTC ensures that the PLC program and user-defined variables are preserved without the risk of logic loss. Furthermore, the high-precision RTC enables the controller to execute time-of-day logic, which is vital for building automation, energy management, and logging events with millisecond-accurate timestamps. Its ultra-compact architecture allows it to fit directly into the front-facing plug-in slots, maintaining the PLC’s footprint while adding advanced system resilience.
Key Technical Specifications
- Module Type: Memory Backup and Real-Time Clock
- Clock Accuracy: +/- 5 minutes per month at 25°C
- Battery Life: 10 years typical at 25°C
- Memory Type: Internal project backup storage
- Compatibility: Micro820, Micro830, Micro850, Micro870
- Operating Temperature: -20…65°C (-4…149°F)
- Status Indicators: Integrated through PLC diagnostics
- Mounting: Front-facing plug-in slot
Architecture and System Resilience
The architecture of the 2080-MEMBAK-RTC is centered on long-term project availability. It allows users to store a copy of the ladder logic and data tags on the module, which can be automatically loaded back into the controller’s RAM upon power-up if the internal memory is corrupted. This «Auto-load» feature is a cornerstone of maintenance efficiency, allowing for rapid recovery without the need for a technician to connect a PC. For networked systems, the RTC synchronization across the plant floor ensures that data logging performed by various Micro800 units remains consistent, which is a prerequisite for professional SCADA and industrial IoT implementations.
Maintenance Tips
To ensure the 2080-MEMBAK-RTC remains operational for its full 10-year lifespan, avoid exposing the module to temperatures exceeding 65°C, as high heat can accelerate the degradation of the internal backup battery. Periodically check the «RTC Low Battery» status bit in the Connected Components Workbench (CCW) software as part of your annual preventative maintenance schedule. If the backup project version is updated, remember to perform a manual «Backup to Plug-in» command in CCW to ensure the module contains the most recent version of the machine logic.
Frequently Asked Questions
Q: Does the Micro820 need this module for a Real-Time Clock?
A: The Micro820 has an embedded RTC, but the 2080-MEMBAK-RTC can be used to add project backup functionality or to serve as a high-precision redundant clock source if required.
Q: Will the module retain the project if the PLC remains unpowered for a year?
A: Yes, the non-volatile memory does not require battery power to retain the project data, though the battery is required to keep the Real-Time Clock running.
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