Allen-Bradley 1747-L551 SLC 5/05 Processor Module

Product Description

Configured for program execution and Ethernet data communication in the Allen-Bradley SLC 500 system, the Allen-Bradley 1747-L551 (1747-L551 Processor Module) executes the SLC instruction set and manages controller data and I/O operations. It provides 16 KB of user memory, an Ethernet port, and an RS-232 communication port.

Hardware Specifications

SLC 5/05 Communication and I/O Architecture

The 1747-L551 provides Ethernet communication through its integrated Ethernet port and serial communication through its RS-232 port. The Ethernet interface supports 10/100 Mbps communication, while the serial interface supports DF1 and DH-485 protocols.

The processor supports up to 4096 inputs and 4096 outputs within the specified SLC 500 architecture. It executes standard SLC instructions for bit manipulation, word operations, timing, counting, comparison, and mathematical processing. In addition, the supplied data specifies real-time data logging capability.

Frequently Asked Questions

Q: Which communication interfaces are integrated into the 1747-L551?
A: The processor provides one Ethernet port rated at 10/100 Mbps and one RS-232 port supporting DF1 and DH-485 communication.

Q: How much user memory does the 1747-L551 provide?
A: The supplied specification identifies 16 KB of user memory.

Q: What power supply does the 1747-L551 require?
A: The processor requires a 1746 power supply. The supplied data specifies a power supply voltage range of 85-265 VAC.

Field Installation Guidelines

Install the 1747-L551 in the appropriate SLC 500 chassis position and verify that the module seats correctly in the chassis before energizing the system.

Connect the required 1746 power supply according to the system wiring documentation. Verify supply wiring and grounding before applying power.

For Ethernet communication, use suitable industrial Ethernet cabling and route communication cables away from high-voltage and high-current conductors where practical. For RS-232 connections, verify the selected communication protocol and connector wiring before commissioning.

Secure all communication connections to prevent intermittent contact caused by vibration or mechanical movement. During commissioning, verify Ethernet and serial communication status before placing the controller into normal operation.

Maintain adequate separation between communication wiring and sources of electrical noise. Follow the applicable Allen-Bradley SLC 500 installation documentation for chassis grounding, wiring, and environmental requirements.

Other Attributes

• Series: Allen-Bradley SLC500
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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