Allen-Bradley 2080-LC50-24QBB | Micro 850 PLC
24 I/O, Ethernet, High-Speed Motion Control Programmable Logic Controller
Part Number: 2080-LC50-24QBB
Manufacturer: Allen-Bradley (Rockwell Automation)
Product Line: Micro 850
UPC: 884951711709
Condition: New / Refurbished / Surplus Available
Product Overview
The Allen-Bradley 2080-LC50-24QBB is a mid-range standalone programmable logic controller from Rockwell Automation's Micro 850 series. This controller platform bridges the gap between entry-level Micro 820 and the more advanced CompactLogix family, making it ideal for small to medium machine automation applications requiring compact footprint, onboard Ethernet connectivity, and genuine motion capability in a single unit.
With 14 inputs, 10 outputs, built-in RJ45 Ethernet port, USB configuration interface, and support for up to 4 expansion I/O modules (expanding total digital I/O to 132 points), the 2080-LC50-24QBB offers scalable performance that grows with your application requirements.
Key Specifications
| Parameter |
Value |
| Part Number |
2080-LC50-24QBB |
| Product Line |
Micro 850 |
| Total Base I/O |
24 (14 In / 10 Out) |
| Input Voltage |
12/24V DC Sink/Source |
| Output Type |
24V DC Source |
| High-Speed Inputs |
8 (Inputs 0-7) |
| High-Speed Outputs |
2 (Outputs 0-1) |
| HSC Maximum Frequency |
100 kHz |
| High-Speed Counters |
4 HSC |
| Motion Axes (PTO) |
2 |
| Base Plug-in Slots |
3 |
| Expansion I/O Modules |
Up to 4 |
| Max Digital I/O |
132 |
| Serial Port |
1 * RS-232/485 (non-isolated) |
| Configuration Port |
1 * USB Type B |
| Ethernet Port |
1 * RJ45 |
| Power Supply Input |
20.4-26.4V DC (Class 2 / LVLC) |
| Weight |
0.43 kg |
Advanced I/O Capabilities
The 2080-LC50-24QBB features eight high-speed inputs capable of operating at up to 100 kHz through onboard high-speed counters. These inputs serve as quadrature encoder inputs, pulse counters, or frequency measurement channels, providing significant hardware resources without expansion modules.
Two high-speed outputs function as pulse train output (PTO) channels for driving stepper or servo positioning axes. When combined with HSC inputs for encoder feedback, this enables basic closed-loop positioning or independent open-loop stepper axis control directly from the base unit.
Connectivity Features
The onboard RJ45 Ethernet port supports EtherNet/IP protocol for integration with Rockwell-managed networks, HMI panel communication, and remote program access. The USB Type B port provides reliable programming and configuration via Connected Components Workbench software, while the RS-232/485 serial port accommodates legacy device communication and instrumentation interfaces.
Expansion Capability
Support for up to four 2080 series expansion I/O modules extends digital I/O capacity to 132 points. Expansion options include analog I/O, additional digital I/O, thermocouple and RTD temperature inputs, and specialty function modules. Three onboard plug-in slots accept additional serial ports, HSC channels, and analog inputs for enhanced functionality.
Application Scope
Ideal for standalone machine control applications including packaging machines, conveyor systems, small assembly stations, test rigs, and pump/fan control panels. The 24V DC supply requirement and Class 2 power classification align with standard machine control power architectures, while the compact 0.43 kg design fits efficiently in DIN-rail mounted control cabinets.
Programming & Software
Programmed using Rockwell's Connected Components Workbench (CCW) software - available as a free download. Supports Ladder Diagram, Function Block Diagram, and Structured Text programming languages, along with motion configuration tools for PTO axis setup. Includes online monitoring, data trending, and firmware update capabilities.
Frequently Asked Questions
What is the difference between the PTO motion axes and the HSC inputs?
The two PTO (Pulse Train Output) channels generate pulse-and-direction signals to drive stepper motor drivers or servo amplifiers. The four HSC (High-Speed Counter) channels count pulses from encoders or other pulse-generating devices at up to 100 kHz. Used together, they enable basic closed-loop position verification.
Can the 2080-LC50-24QBB communicate with Allen-Bradley HMI panels over Ethernet?
Yes. The onboard EtherNet/IP port allows direct communication with Allen-Bradley PanelView and PanelView Plus HMI terminals. Tag-based communication over EtherNet/IP is natively supported in both CCW and HMI configuration software.
How many expansion modules can be added, and where do they connect?
Up to four 2080 series expansion I/O modules connect to the right side of the base controller, extending total digital I/O to 132 points. Three additional plug-in slots on the base unit accept smaller plug-in modules for enhanced functionality.
What power supply does the 2080-LC50-24QBB require?
The controller requires a 20.4-26.4V DC supply rated as Class 2 or LVLC. A standard 24V DC switching power supply with Class 2 certification is typically used. The controller does not operate directly on AC power.
What software is needed to program the controller, and is it free?
Rockwell Automation's Connected Components Workbench (CCW) software is required and available as a free download. It supports multiple programming languages and handles the full project lifecycle including motion configuration and firmware updates.
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