Allen-Bradley 1747-L551 is a high-performance processor module from Rockwell Automation's ALLEN-BRADLEY brand. Below is a detailed introduction to the 1747-L551 module:

Overview

The 1747-L551 is a processor hardware that integrates 16 KB of program memory. It is designed as a high-performance controller capable of managing up to 4096 input and output (I/O) points. This module supports both online and offline programming, including runtime editing.

Key Features

• Communication Capabilities:

  • Ethernet Port: The module comes with an Ethernet port for network connectivity, supporting 10/100 Base-T Ethernet channels. It also supports protocols such as SNMP and BOOTP, facilitating high-speed communication and extended messaging functions.
  • RS232 Port: An RS232 port is provided for peer-to-peer communication, supporting DF1 full-duplex, DF1 half-duplex host, and DF1 radio modem functionalities.

• I/O and Programming Support:

  • The 1747-L551 supports channel-to-channel, remote I/O, and DeviceNet pass-through functions.
  • It includes advanced mathematical instructions and various additional instructions for programming.
  • Indirect addressing is also supported.

• Built-in Features:

  • Real-Time Clock and Calendar: An integrated real-time clock and calendar are provided for time-sensitive applications.
  • Isolation: The communication circuits within the module have an isolation voltage of approximately 500 V DC, while the isolation between the backplane and I/O is 1500 V AC.

• Durability and Environmental Specifications:

  • Vibration Resistance: The module can withstand a working vibration of 2.5G at frequencies from 5 to 2000 Hz, and a non-operating vibration of 5G within the same frequency range.
  • Temperature Range: The operating temperature is between 32°F and 140°F, with a storage temperature range of -40°F to 185°F.
  • Shock Resistance: It can endure an operational shock of 30G (3 pulses, 11 ms) and a non-operational shock of 50G (3 pulses, 11 ms).
  • Humidity: The relative humidity tolerance is 5% to 95%, non-condensing.

• Certifications and Compliance:

  • The module complies with UL 508 and CSA C22.2 No. 142 standards, featuring a 150 V AC insulation withstand voltage.
  • It meets various safety standards and certifications, ensuring reliability and compliance in diverse industrial applications.

Applications

Due to its advanced features and robust design, the 1747-L551 is well-suited for industrial automation applications that require high performance, reliability, and extensive I/O capabilities. Its communication ports and support for various programming instructions make it versatile for integrating into larger systems and networks.

In summary, the Allen-Bradley 1747-L551 processor module is a high-performance controller designed for industrial automation applications. With its extensive I/O capabilities, robust communication ports, and built-in features, it provides a reliable and versatile solution for a wide range of industrial needs.