Allen Bradley CompactLogix 750KB DI/O Controller 1769-L24ER-QB1B


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  • Manufacturer: Allen Bradley – PLC
  • Product Type: PLC/Programmable Logic Controller
  • Part Number: 1769-L24ER-QB1B
  • Series: CompactLogix
  • UPC: 10885630101221
SKU: 1769-L24ER-QB1B Category:


The 1769-L24ER-QB1B is a PAC that is included in the CompactLogix 5370 Series by Allen-Bradley. It features 786 Kilobytes of user memory and provides connectivity via 2 Ethernet ports, 1 RS232 port, and 1 USB port. It has 16 sink/source digital inputs and outputs operating at 24 Volts. Up to 4 Compact I/O modules are supported by this PAC.

  • Part Number: 1769-L24ER-QB1B
  • Backplane current draw @ 24V DC: 0.95 A
  • Backplane current draw @ 5V DC: 1.54 A
  • Power dissipation: 12 W
  • Embedded power supply: 24V DC Input, isolated
  • Module location: DIN rail or panel mount
  • User memory: 750 KB
  • Optional nonvolatile memory: 1784-SD1 card with 1 Gb of available memory (shipped with controller)/ 1784-SD2 card with 2 Gb of available memory (available for separate ordering)
  • Number of local expansion modules: 4 – 1769 Compact I/O modules
  • Controller connections: 256
  • Sockets, max: 32
  • Communication options: EtherNet/IP – DeviceNet via 1769-SDN scanner
  • Weight: 0.63 kg (1.39 lb)

The Allen-Bradley 1769-L24ER-QB1B CompactLogix controller is suitable for control applications to meet motion, I/O and network specifications. This Allen-Bradley CompactLogix controller includes two Ethernet communication ports, one USB communication port, distributed and local Input/Output modules, one I/O bank and 256 controller links. This Allen-Bradley CompactLogix controller has four analog inputs, two analog outputs, sixteen digital inputs and outputs. This Allen-Bradley CompactLogix controller can access to DeviceNet through 1769-SDN scanner. The Allen-Bradley 1769-L24ER-QB1B CompactLogix controller provides thirty-two tasks and one hundred programs per task. The 1769-L24ER-QB1B module offers the flexibility during the installation and mounting steps with mounting M4 or #8 panhead screws for well-grounded panel mounting or on a DIN rail (EN 50 022 – 35 x 7.5 or EN 50 022 – 35 x 15).

This Allen-Bradley 1769-L24ER-QB1B CompactLogix controller can be configured and programmed using structured text, relay ladder, function block or sequential function chart (SFC) programming language. This Allen-Bradley CompactLogix controller draws a current of 1.54 amperes at a voltage rating of 24 volts DC with a power consumption of 12 watts. The Allen-Bradley 1769-L24ER-QB1B CompactLogix controller supports four 1769 Compact I/O modules. The Allen-Bradley 1769-L24ER-QB1B CompactLogix controller includes a 24 volts DC embedded power supply. The 1769-L24ER-QB1B controller is intended for use in a mainly industrial environment that is clean and dry for a wide range of applications. The Allen-Bradley 1769-L24ER-QB1B controller can operate at a temperature range of 0 degrees to 60 degrees Celsius (32 degrees to 140 degrees Fahrenheit) and weighs approximately 630 grams (1.39 pounds) while shipping.

This is the Allen-Bradley 1769-L24ER-QB1B controller. This module is included in the CompactLogix 5370 series and is an L2 controller. Up to 4 Compact I/O modules from the 1769 series are supported by the 1769-L24ER-QB1B. It can run 32 controller tasks with each task running 100 continuous programs. This controller includes 2 Ethernet ports for connectivity and has 16 DC input and 16 DC output channels for a total of up to 32 available I/O channels. These channels have a nominal operating voltage of 24 Volts DC. Supported input operating voltage ranges from 10 Volts to 28.8 Volts DC. The module draws 1.54 Amperes of current at 5 Volts DC and 0.95 Amperes when the voltage is 24 Volts DC. The integrated power supply is isolated and supplies input power at 24 Volts DC. This controller features 0.75 Megabytes of available memory that can be expanded by 1 Gigabyte using the included Secure Digital (SD) card. For even greater memory storage requirements, an optional SD card is also available with a capacity to store 2 Gigabytes of user data. Built-in ports include a Serial port, USB port, and a DualPort Ethernet connection that supports Device Level Ring (DLR) network topology and can communicate with a total of 8 nodes. The RS232 port supports the DF1, DH485, and ASCII communication protocols and is a fully isolated channel. Data transfer rates of up to 38.4 Kilobits per second are offered by the 1769-L24ER-QB1B. The dimensions of this unit are 4.53 x 4.13 x 4.65 inches.

Additional information

Weight 1.05 kg


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