Secure the Allen-Bradley 1756-L63 ControlLogix Standard Controller with 8 MB user memory and integrated RS-232 connection. Brand New, Original Stock with Global Shipping. Minimize plant downtime and optimize your automation system now.
The Allen-Bradley 1756-L63, also cataloged as the 1756-L63 ControlLogix Standard Controller, operates as a dedicated hardware component for industrial logic processing and real-time task execution within ControlLogix chassis-based platforms.
| Parameter | Specification |
|---|---|
| Model | 1756-L63 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.32 kg |
| Dimensions | 3.6 x 13.9 x 15.2 cm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 1.2 A at 5.1 VDC; 14 mA at 24 VDC |
| User Memory | 8 MB |
| I/O Memory | 478 KB |
| Discrete I/O Capacity | 128,000 maximum |
| Analog I/O Capacity | 4,000 maximum |
| Non-Volatile Memory Slot | 1784-CF128 CompactFlash (128 MB) |
| Onboard Interfaces | 1x RS-232 Serial Port |
| Backup Battery | 1756-BA1 or 1756-BATA |
| Operational Shock | 30 g |
The 1756-L63 utilizes a high-speed proprietary backplane bus that enforces strict determinism for scheduled I/O traffic and peer-to-peer data transfers. Firmware flash compatibility dictates that execution speed matches structural instruction optimizations, maximizing the handling of simultaneous motion control axes and complex control loops. For external plant networking, the controller relies on Profinet / EtherNet/IP deterministic networks via standalone communication modules, establishing dedicated paths for EtherNet/IP CIP messaging, ControlNet, and DeviceNet configurations.
Q: What is the procedure for updating the controller firmware, and does it affect user memory?
A: Firmware flash compatibility updates require the controller to be in Program or Remote Program mode via ControlFlash or ControlFlash Plus software over an established network or serial connection. Executing a firmware flash erases the volatile RAM, necessitating a complete project reload from the programming software or an installed 1784-CF128 non-volatile memory module.
Q: How does the controller handle power loss without losing the application program?
A: The hardware contains battery-backed volatile RAM maintained by a 1756-BA1 or 1756-BATA lithium battery assembly. Upon power loss, the battery preserves the loaded user program and tag data. For permanent non-volatile storage, the project must be compiled and saved directly to a 1784-CF128 CompactFlash card.
Q: Can the 1756-L63 be used in a high-availability redundant controller chassis pairs?
A: Yes. The 1756-L63 supports control redundancy configurations using a dedicated 1756-RM or 1756-RM2 redundancy module per chassis. Firmware versions in both primary and secondary controllers must be identical to allow synchronous data tracking across the backplane.
The Allen-Bradley ControlLogix 1756-L55M16 is an advanced industrial controller from the Logix5000 family, equipped with 7.5 MB of user logic memory, 208 KB of dedicated I/O memory, and a dual-CPU processor architecture that optimizes logic execution separate from chassis backplane traffic. Built for heavy-duty automation systems, it manages up to 128,000 total digital I/O points with a blistering 0.08 ms program scan time. Supporting multi-network connectivity across EtherNet/IP, ControlNet, and DeviceNet alongside producer/consumer data tag broadcasting, this processor provides the ultimate scalability, multi-language scheduling, and reliable multitasking control for complex, modern factory floor operations.
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