For several years, CHANGXIN have specialized in trading high-quality components in the field of industrial automation.
Focusing on PLC components, DCS and CNC technology, and drivetechnology
Allen-Bradley 1769-L24ER-QB1B Programmable Controller with Built in I/O
| Brand: Allen‑Bradley (Rockwell) |
| Item NO: 1769-L24ER-QB1B |
| Effect: CompactLogix 5370 L2 series programmable controller with built-in I/O |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
Allen-Bradley 1769-L24ER-QB1B Programmable Controller with Built in I/O
1769-L24ER-QB1B is an Allen-Bradley CompactLogix 5370 L2 series programmable controller with built-in I/O. 1769-L24ER-QB1B integrates digital input and output, serving as the control core for small automation equipment, performing logical operations, sequential control, high-speed counting, and event capture; The 1769-L24ER-QB1B is equipped with dual Ethernet ports that support EtherNet/IP and DLR ring networks. It can expand the 1769 series local I/O modules and also interface with frequency converters, touch screens, and remote I/O. Using Studio5000 software programming, suitable for complete sets of equipment with few points, balancing local I/O acquisition and network distributed control.

Parameter Specifications
| Item | Specifications |
|---|---|
| Model | 1769-L24ER-QB1B |
| Series | CompactLogix 5370 L2 Controller |
| User memory | 750 KB |
| Built-in digital input | 16 points, 24VDC sink/source |
| Built-in digital output | 16 points, 24VDC source |
| Local expansion | Up to 4 additional 1769 I/O modules |
| Ethernet port | 2×10/100 Mbps RJ45 |
| Network protocol | EtherNet/IP, DLR |
| Programming port | USB front port |
| Software | Studio 5000 |
| SD card | Optional, for program backup |
| Operating temperature | 0℃ ~ +55℃ |
| Storage temperature | -40℃ ~ +85℃ |
| Humidity | 5%~95% non-condensing |
| Mounting | DIN rail |
| Weight | 0.37 kg |
Allen-Bradley 1769-L24ER-QB1B Programmable Controller with Built in I/O
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!

Main product range
- Control system (DCS/PLC/CNC): panel controller, HMI and human-machine interface, industrial PC, CPU processor module, communication module, analog/digital I/O module
- Drive and motion control: frequency converter, servo drive, servo motor, power module
- Robot spare parts: key spare parts such as robot control board, axis computer, servo unit, I/O module, etc
- State monitoring and safety system: vibration monitoring system, safety instrumented system (SIS), redundant controller
Product features
- The main body comes with 32 digital I/O points, allowing for small device control without the need for additional I/O modules, saving cabinet space.
- Dual network ports support DLR device level ring networks, ensuring uninterrupted system communication in the event of a single cable breakage, thereby improving reliability.
- It can expand up to 4 1769 series I/O modules, making it convenient to add measurement points in the future.
- Comes with a USB programming port, making online monitoring, program downloading, and fault diagnosis easy to operate.
- Supports EtherNet/IP protocol, can connect servo, frequency converter, HMI, and remote I/O.
- Lithium free battery design, relying on built-in capacitors to maintain labels during power outages and reduce maintenance costs.
- Compact body, DIN rail direct installation, suitable for equipment with limited control cabinet space.
- Supports high-speed counting, pulse capture, and can be used for simple positioning and encoder signal acquisition.

Application Industry
The products are widely used in various industrial fields such as metallurgy, oil and gas, petrochemicals, electricity, power transmission and distribution, water conservancy, water treatment and environmental protection, coal mining, aluminum industry, glass manufacturing, paper and printing, textile printing and dyeing, machinery manufacturing, electronics manufacturing, automobile manufacturing, plastic machinery, boiler heating, energy, etc.
| No. | Brand | Country/Region | Main Product Lines | Typical Series/Models |
| 1 | ABB | Switzerland | PLC/DCS Controllers, I/O Modules, Robot Spare Parts, Drive Systems | AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC Robot Modules, Advant OCS, H&B Freelance |
| 2 | Bently Nevada | USA | Condition Monitoring Systems, Vibration Sensors, Proximitors | 3500 Monitoring System, 3300 Monitoring System, Eddy Current Probes, Proximitors |
| 3 | TRICONEX | USA | Safety Instrumented Systems (SIS), TMR Redundant Controllers | Tricon System Modules, Communication Modules, I/O Modules |
| 4 | Woodward | USA | Steam/Gas Turbine Control, Speed Governing Systems, Actuators | 505 Governor, ProTech, MicroNet, NetCon Series |
| 5 | FOXBORO | USA | DCS Systems, I/A Series Control Modules | I/A Series, FBM Modules, Controllers |
| 6 | WESTINGHOUSE | USA | DCS Systems, Ovation Controllers, Modules | Ovation System, WDPF Series |
| 7 | Motorola | USA | Industrial Communication Modules, Embedded Control Modules | MVME Series, VME Bus Modules |
| 8 | GE / GE Fanuc | USA | PLC, Excitation System Modules, CPU/Communication/Analog Modules | IS200/DS200 Excitation Cards, IC693/IC695/IC697/IC698/IC200/IC660/IC670 Series |
| 9 | YOKOGAWA | Japan | DCS Systems, CPU Modules, I/O Cards | CENTUM CS3000, CS1000, VP Series |
| 10 | HIMA | Germany | Safety Control Systems, SIL Safety Modules | H41q/H51q, HIMax, HIMatrix Series |
| 11 | EMERSON | USA | DCS Systems, Redundant Controllers, Safety Systems | Ovation, DeltaV Dual-Channel Redundant Safety Systems |
| 12 | Honeywell | USA | DCS Systems, Process Control Modules | Experion PKS/LS/HS, Plant Scape, TDC2000, TDC3000, TPS, Alcont |
| 13 | ICS TRIPLEX | UK | Trusted Safety Control Systems, TMR Modules | Trusted System, T8000 Series |
| 14 | Kollmorgen | USA | Servo Drives, Servo Motors, Motion Control | S700, S300, AKD Series Drives, Servo Motors |
| 15 | PROSOFT | USA | Industrial Communication Modules, Protocol Gateways | MVI69, MVI56, MVI94, MVI71, MVI46, PS69, 3150 Series |
| 16 | Alstom | France | Power Control, Protection Relays, Control Systems | GEC ALSTHOM, Protection and Control Modules |
| 17 | EATON | USA | Electrical Control, PLC, Power Supplies, Circuit Breakers | XC/XN Series PLC, Moeller Series, Power Supply Modules |
| 18 | Allen-Bradley (Rockwell) | USA | PLC Controllers, I/O Modules, Communication Modules | ControlLogix 1756, CompactLogix 1769, SLC 500 1747/1746, PLC-5 1771/1785 |
| 19 | Schneider | France | PLC, Modicon Series, CPU/Communication Modules | Quantum 140, Modicon M340, Modicon Premium |



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