Rated 4.3 with 13 reviews


Revisions: Ser A Ser B

Description:  Allen Bradley CompactLogix assembled EtherNet Controller, 512 Kilobyte capacity of memory, 16DI, 16DO, 24 DC Power CPU Module. RSLogix5000 | Serial communication | series A&B | copper wire type. Weighs 3lbs and is 11X8x6 inches.

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Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 1769-L23E-QB1B.
Exchange: Exchange credit for your defective unit available.

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About 1769-L23E-QB1B

The Allen-Bradley 1769-L23E-QB1B packaged compact controller is an electronic device with a built-in power supply and a 512 KB memory that runs on RSLogix5000 software. The 1769-L23E-QB1B does not support compact flash cards but it can communicate through a single EtherNet/IP port and an RS-232 serial port (DF1 or ASCII) communication port. It is an embedded compact Logix controller with 16 DC inputs and 16 DC outputs. The 1769-L23E-QB1B module expansion can include up to three (1769) modules and can only be limited by the amount of current each additional module draws. It has an embedded 24 Volt DC power supply and a 1000mA BUS current at 5 Volts.

The 1769-L23E-QB1B has a request packet interval (RPI) speed of approximately 1.0ms scan across 1 to 4 modules. It comes with a 1769-BA replaceable battery. At 24 Volts, the 1769-L23E-QB1B has a drawn current of 700mA and dissipates power at 7.01W. Devices can be connected to the 1769-L23E-QB1B through the 1756-CP3 or 1747-CP3 serial cables. Additional embedded features of the 1769-L23E-QB1B include 16 inputs and a 24-Volt voltage category operating at 10 to 30 Volts DC at 30 degrees Celsius (86 degrees Fahrenheit) voltage range. Additional embedded features include an input impedance of 3 kOhms, a maximum inrush current of 250 mA, an off-state voltage of 5 Volts DC (max.) and an off-state current of 1.5mA. The 1769-L23E-QB1B compact controller also has embedded output features which are a 16-unit output, an out-delay time of 0.1 ms, and a maximum leakage current of 1.0 mA at 26.4 Volts DC. The current across each module of the 1769-L23E-QB1B is 4.0 A at 60 degrees Celsius (140 degrees Fahrenheit). The 1769-L23E-QB1B has an approximate weight of 0.91 kilograms (2 pounds) and can be mounted on a DIN rail or panel mount.

Technical specifications:

Part Number:1769-L23E-QB1B
Product Line:CompactLogix
Module Type:Processor Module
Shipping Weight:3 pounds
Shipping Dimensions:11 x 8 x 6 inches
Series:A and B
Replacement Terminal Block Part Number:1769-RTBN18
Wire Type:Copper-90 degrees Celsius
Wire Size (Solid):22 to 14 AWG
Wire Size (Stranded):22 to 16 AWG


Question: What is this module’s communication type?

Answer: The 1769-L23E-QB1B has a serial communication type.


Question: What type of software does this module require?

Answer: The 769-L23E-QB1B uses RSLogix5000 software.


Question: Can this module be purchased with a warranty?

Answer: Yes, the 1769-L23E-QB1B comes with a free one-year warranty from DO Supply, Inc.


Question: Where can I send the 1769-L23E-QB1B to be repaired?

Answer: DO Supply, Inc. offers a variety of repair services for the 1769-L23E-QB1B.

Please refer to the manual for more information about the 1769-L23E-QB1B such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1769-L23E-QB1B Ser A
1769-L23E-QB1B/A, Series A, Rev A Request Quote
1769-L23E-QB1B Ser B
1769-L23E-QB1B/B, Series B, Rev B Request Quote

Common misspellings: 1769-L23E-QBIB