Introduction

The Allen-Bradley 2080-L50E-24QWB Micro850 Programmable Controller is part of Rockwell Automation's Micro800 controller family. Designed for compact machine-control applications, it combines integrated digital I/O, Ethernet connectivity, and serial communication interfaces in a single programmable control unit.

Its onboard I/O consists of 14 digital inputs compatible with 24V AC/DC signals and 10 relay outputs. The relay-based output configuration is particularly useful in control systems where switching flexibility is important, including applications involving contactors, solenoid valves, and other compatible field devices.

For communication, the controller provides embedded Ethernet, RS-232, and RS-485 interfaces, together with a USB programming port. It also supports up to four embedded high-speed counter channels, making it suitable for selected applications that require pulse counting and signal monitoring.

The Micro850 platform offers additional flexibility through compatible plug-in accessories and Micro800 expansion I/O modules. Engineers can use Connected Components Workbench to develop and maintain control programs, configure communication settings, and troubleshoot the system.

For OEM manufacturers and industrial maintenance teams, the 2080-L50E-24QWB provides an integrated solution for machine automation, equipment upgrades, and replacement projects where 24V AC/DC inputs and relay outputs are required.

Technical Specifications

Parameter	Specification
Brand	Allen-Bradley
Model	2080-L50E-24QWB
Product Series	Micro850
Product Type	Programmable Controller
Total Embedded I/O	24 points
Digital Inputs	14 points
Input Signal Type	24V DC / 24V AC
Digital Outputs	10 points
Output Type	Relay
Controller Power Supply	24V DC
Ethernet	Embedded Ethernet port
Serial Communication	RS-232 / RS-485
Programming Interface	USB
Embedded High-Speed Counter Support	Up to 4 channels
Plug-in Slots	3
Programming Software	Connected Components Workbench (CCW)
Dimensions	158 × 80 × 90 mm
Weight	0.423 kg / 0.93 lb

Recommended Related Models

The following Allen-Bradley controllers and accessories are relevant to Micro850 system configuration and expansion. Their input and output arrangements vary, so check electrical compatibility before selecting a model.

Model	Product Description
2080-L50E-24QBB	Micro850 Controller with 24V DC Sourcing Outputs
2080-L50E-24QVB	Micro850 Controller with 24V DC Sinking Outputs
2080-L50E-24AWB	Micro850 Controller with 120V AC Inputs and Relay Outputs
2080-L50E-48QWB	Micro850 48-Point Controller with Relay Outputs
2080-L50E-48QBB	Micro850 48-Point Controller with Sourcing Outputs
2080-L50E-48QVB	Micro850 48-Point Controller with Sinking Outputs
2080-IF4	Micro800 Analog Input Plug-in Module
2080-OF2	Micro800 Analog Output Plug-in Module

Popular Related Models

2080-L30E-24QBB – Micro830 Programmable Controller with Sourcing Outputs
2080-L30E-24QVB – Micro830 Programmable Controller with Sinking Outputs
2080-L50E-24QWB – Micro850 24-Point Controller with Relay Outputs
2080-L50E-24QBB – Micro850 Controller with Sourcing Outputs
2080-L50E-24QVB – Micro850 Controller with Sinking Outputs
2080-L50E-48QWB – Micro850 48-Point Controller with Relay Outputs
2080-IF4 – Micro800 Analog Input Plug-in Module
2080-OF2 – Micro800 Analog Output Plug-in Module

Applications

The Allen-Bradley 2080-L50E-24QWB Micro850 Programmable Controller is a compact PLC designed for industrial machines and standalone automation systems. It combines 14 digital inputs with 10 relay outputs, providing a practical control solution for equipment using 24V AC/DC input signals and relay-switched field devices.

Typical applications include:

Packaging and labeling machines: Managing sensors, actuators, product detection, and machine sequences.
Conveyor systems: Coordinating start/stop operations, position detection, and equipment interlocks.
Pump and fan control: Automating operating sequences and monitoring discrete status signals.
Assembly machinery: Controlling pneumatic valves, contactors, indicators, and auxiliary equipment.
OEM equipment: Providing integrated PLC functionality for compact industrial machines.
General machine automation: Handling discrete control tasks that require flexible relay outputs and Ethernet connectivity.

Advantages

1. Integrated 24-Point I/O Configuration

The controller provides 14 digital inputs and 10 relay outputs in one unit, helping simplify control-panel design and reduce the need for additional basic I/O modules.

2. Flexible 24V AC/DC Inputs

Its digital inputs support 24V DC and 24V AC signals, making the controller suitable for a range of industrial sensing and control arrangements.

3. Versatile Relay Output Switching

The 10 relay outputs can switch compatible AC or DC loads within their specified electrical ratings. This makes the controller useful for applications involving contactors, solenoid valves, and other discrete devices.

4. Embedded Ethernet Connectivity

An integrated Ethernet port supports communication with compatible programming tools, operator interfaces, and other networked automation equipment.

5. Multiple Serial Interfaces

RS-232 and RS-485 communication interfaces provide additional connectivity options for serial devices and industrial systems.

6. High-Speed Counter Support

The 24QWB configuration supports up to four embedded high-speed counter channels, allowing it to handle selected pulse-counting and feedback applications.

7. Expandable Micro850 Architecture

Three plug-in slots support compatible accessories and functional modules. The controller can also work with supported Micro800 expansion I/O modules to accommodate changing application requirements.

8. Convenient Programming Environment

Connected Components Workbench (CCW) provides an integrated environment for developing, configuring, and maintaining Micro850 control applications.

Technical FAQs

Q1: How many I/O points are available on the 2080-L50E-24QWB?

It has 24 embedded I/O points, consisting of 14 digital inputs and 10 relay outputs.

Q2: What input signals does this controller support?

The embedded digital inputs are designed for 24V DC and 24V AC signals. Field wiring should follow the specified input circuit requirements.

Q3: Are the outputs relay or transistor type?

The 2080-L50E-24QWB uses 10 relay outputs. It is different from the 24QBB and 24QVB variants, which use 24V DC transistor outputs.

Q4: Can the relay outputs switch both AC and DC loads?

Yes. The relay outputs support compatible AC and DC loads within their rated voltage and current limits. The load type, switching frequency, and electrical ratings should be considered during circuit design.

Q5: What power supply does the controller require?

The controller uses a 24V DC power supply. The supply should meet the specified voltage range and power requirements of the complete control system.

Q6: Does the 2080-L50E-24QWB support high-speed counters?

Yes. This model supports up to four embedded high-speed counter channels. The supported operating modes and wiring depend on the application configuration.

Q7: Does this model support pulse-train outputs?

The 2080-L50E-24QWB does not provide the embedded PTO/PWM output functions listed for certain Micro850 transistor-output variants. If pulse generation is required, check the specific controller configuration and available plug-in options.

Q8: Which communication interfaces are integrated?

The controller provides Ethernet, RS-232, RS-485, and a USB programming interface. These support different programming and equipment-communication requirements.

Q9: Which software is used to program the Micro850 controller?

Connected Components Workbench (CCW) is used to program and configure the Micro850. Firmware and software compatibility should be checked when maintaining an existing installation.

Q10: What should be checked before replacing a 2080-L50E-24QWB?

Confirm the complete catalog number, input signal type, relay output requirements, power supply, communication settings, firmware compatibility, and existing program. A controller with the same I/O count may have a different output technology and may not be a direct replacement.

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