Allen-Bradley Logix5561 / ControlNet / 1756 Series PLC Control System and Communication Modules
The Allen-Bradley ControlLogix 1756 Series provides a highly scalable and robust PLC control system designed for complex industrial automation environments. At the heart of this system is the Logix5561 processor module, which delivers exceptional processing power and memory capacity for demanding control applications. The system seamlessly integrates factory networks utilizing ControlNet (coaxial) and EtherNet/IP communication bridge modules, ensuring high-speed, deterministic data transfer. Each module features comprehensive status indicator LEDs—including RUN, PROG, BATT, FORCE, I/O, and Network A/B—for real-time system diagnostics. Complete with BNC coaxial connectors for secure industrial networking and dedicated redundancy module support, this system is engineered to maximize uptime and fault tolerance in mission-critical operations.
Technical Specifications:
- Brand/Series: Allen-Bradley / ControlLogix 1756 Series
- Processor Module: Logix5561 (1756-L61)
- Network Protocols Supported: ControlNet (Coaxial) and EtherNet/IP
- Diagnostic Indicators: FORCE, RUN, PROG, BATT, OK, I/O, NET A, NET B
- Additional Features: Redundancy Module Support, BNC Coaxial Connectors

| Brand | Allen-Bradley |
|---|---|
| Model | Logix5561 / ControlNet / 1756 Series |
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Shipping policy
If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
Allen-Bradley Logix5561 / ControlNet / 1756 Series PLC Control System and Communication Modules
Optimize your industrial automation with the Allen-Bradley Logix5561 / 1756 Series PLC Control System. Featuring high-speed processing, robust ControlNet and EtherNet/IP network integration, and advanced redundancy support for unparalleled reliability and maximum system uptime.

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