1746L551

Overview of Allen-Bradley 1746L551 SLC 5/05 Processor Module

The Allen-Bradley 1746L551 is a high-performance SLC 5/05 modular processor designed for complex control applications within the ControlLogix and SLC 500 series. It offers enhanced processing power with 16 KB of user memory, supporting up to 4096 I/O points. This module features dual communication ports with Ethernet and RS-232 support for flexible industrial network integration.

Key Features of Allen-Bradley 1746L551

• Memory: 16 KB user memory with battery-backed RAM for program retention.
• Input/Output Capacity: Supports up to 4096 inputs and 4096 outputs with local and remote I/O expansion.
• Communication Ports: Dual ports with 10/100 Base-T Ethernet and RS-232 for peer-to-peer and network communication.
• Programming Flexibility: Supports runtime editing, channel-to-channel communication, and DeviceNet pass-thru.
• Built-in Clock: Includes real-time clock and calendar for time-based control operations.
• Fast Scan Times: Typical program scan time of 0.9 ms per K and I/O scan time of 0.225 ms.
• Robust Certifications: UL listed, CE compliant, and suitable for Class I, Division 2 hazardous locations.

Technical Specs of 1746L551

Applications / Use Case of Allen-Bradley 1746L551

The 1746L551 processor is suited for medium to large industrial automation applications, including manufacturing systems, process control, and complex machine control. With robust communication and advanced memory capacity, it facilitates efficient process automation and high-speed data handling in SLC 5/05 systems.