1606-XLE240EE Allen-Bradley

1606-XLE240EE Allen-Bradley Memory Board, Dynamic

Product  Description：

Allen-Bradley Dynamic Memory Boards, manufactured by Rockwell Automation, are specialized hardware expansion components designed for legacy industrial automation processors, including classic ControlLogix, PLC-5, and SLC 500 family controllers. These modules provide volatile dynamic random-access memory (DRAM) expansion directly to the central processing unit (CPU).

By expanding the onboard execution memory, dynamic memory boards allow processing units to store larger control programs, handle extensive data tables, execute complex mathematical algorithms, and manage expanded system diagnostic logs. These dynamic memory boards interface directly with the local processor bus to ensure high-speed data read/write operations without adding latency to execution cycles or slowing down controller task scheduling.

Product Parameters

• Memory Type: Dynamic Random-Access Memory (DRAM).

• Storage Capacities: Ranges from 64 KB, 128 KB, 512 KB up to multi-megabyte configurations depending on the specific legacy processor family.

• Interface Type: Direct edge connector / local high-speed processor bus slot.

• Read/Write Speed: High-speed synchronous access matched to CPU clock cycles.

• Data Retention: Volatile; requires active system backplane power or battery power backup to maintain data during power-off states.

• Battery Backup Integration: Supported via onboard lithium battery circuit on the main controller module to maintain dynamic memory content during system shutdowns.

• Error Detection: Integrated parity check functionality to detect memory bit errors and prevent corrupted execution.

• Operating Temperature: 0°C to 60°C (32°F to 140°F).

• Storage Temperature: -40°C to 85°C (-40°F to 185°F).

• Humidity Rating: 5% to 95% non-condensing.

Product Advantages

• Performance Expansion: Substantially increases usable RAM for memory-intensive PLC code, allowing larger automation programs to run on existing hardware chassis without requiring a complete CPU upgrade.

• High-Speed Bus Execution: Plugs directly into the processor architecture, delivering zero-wait-state or minimal-latency execution speeds for real-time control algorithms.

• Cost-Effective Lifecycle Extension: Enables plant operators to expand process control capabilities and retain legacy automation platforms without high capital expenditure.

• Onboard Parity Checking: Continuously verifies memory integrity, preventing execution errors or unpredictable machine behaviors caused by corrupted memory addresses.

• Plug-and-Play System Recognition: The controller firmware automatically identifies the added memory capacity upon system startup, streamlining setup and configuration.

Important Precautions

• ESD Protection: Dynamic RAM chips are extremely sensitive to electrostatic discharge; always wear a grounded ESD wrist strap when handling or installing the board.

• Volatile Storage Risk: Dynamic memory loses all stored data when power is completely removed. Ensure a functional lithium battery is installed in the CPU module before turning off main power.

• Power Down Before Installation: Never insert or remove a memory board while the controller or rack is powered on, as live insertion will damage the board circuits and CPU backplane.

• Firmware and Hardware Compatibility: Verify exact module part numbers, revision levels, and firmware versions against Rockwell Automation compatibility matrices before installation.

• Environmental Protection: Maintain a clean, non-corrosive environment within the control enclosure to prevent oxidation or dust accumulation on memory board edge connectors.

Product Applications

• Legacy PLC System Upgrades: Expanding memory capacity on existing PLC-5 and ControlLogix controllers to support plant expansions and additional I/O racks.

• Complex Recipe Management: Storing large data sets, production schedules, and multi-variable batch recipes directly in execution memory for fast retrieval.

• Data Logging and Trend Tracking: Holding temporary diagnostic logs, alarm histories, and real-time process trend buffers prior to transmission to SCADA systems.

• High-Density Mathematical Processing: Providing required RAM for advanced closed-loop PID control algorithms, mathematical transforms, and motion profile calculations.

• Material Handling and Sorting: Managing large tracking arrays and shift-register databases in high-speed packaging, warehousing, and sorting facilities.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.