Application Scenarios
In a packaging OEM facility, engineers needed a compact controller to manage a wrapping machine with 24 sensors and 20 actuators—including solenoids, conveyors, and cutters. The Allen‑Bradley 2080‑LC30‑48QWB was selected for its 28 inputs and 20 relay outputs, which matched the I/O count precisely without requiring expansion modules. The controller’s 2 high‑speed counters (100 kHz) were configured to capture encoder pulses for accurate film length measurement, while the relay outputs directly drove solenoid valves and motor contactors. The result was a 30% reduction in panel space compared to modular PLC systems, and simplified wiring with fixed terminal blocks that eliminated the need for separate I/O modules.
The 2080‑LC30‑48QWB excels in applications where cost‑effectiveness and simplicity are paramount—from packaging machinery and conveyor systems to material handling equipment and small assembly lines. Its 20KB program memory provides ample capacity for moderate‑complexity logic, and the Class I Division 2 hazardous location certification expands its use into environments where flammable gases may be present .
Parameters
| Main Parameters | Value/Description |
|---|---|
| Product Model | 2080‑LC30‑48QWB |
| Manufacturer | Allen‑Bradley / Rockwell Automation |
| Product Category | Micro830 Programmable Logic Controller |
| Total I/O | 48 (28 inputs, 20 outputs) |
| Digital Inputs | 28 x 24V DC/V AC (sink/source configurable) |
| Digital Outputs | 20 x relay outputs (2A per point, 5A per common) |
| High‑Speed Counters | 2 x 100 kHz (Inputs 0‑11) |
| PTO Outputs | 2 axes (Q0, Q1) for basic motion control |
| Program Memory | 20 KB |
| Plug‑in Module Slots | 5 (for analog, RTD, communication expansion) |
| Communication Ports | 1 x USB 2.0, 1 x RS‑232/RS‑485 combo serial |
| Power Supply | 20.4‑26.4V DC Class 2 |
| Operating Temperature | ‑20°C to 65°C |
| Dimensions (H×W×D) | 90 × 230 × 80 mm |
| Mounting | DIN rail (35mm) or panel mount |
| Enclosure Rating | IP20 (open‑type) |
Technical Principles and Innovative Values
Innovation Point 1: Flexible Sink/Source Input Configuration
The 2080‑LC30‑48QWB supports both sinking and sourcing input configurations, allowing connection to a wide variety of field sensors without requiring external interface circuits . This flexibility reduces engineering effort and component count, particularly valuable in retrofit applications where sensor types may vary.
Innovation Point 2: High‑Speed Counter and PTO Integration
With 2 built‑in 100 kHz high‑speed counters, the 2080‑LC30‑48QWB can capture rapid pulse trains from encoders and flow meters without external counting modules. Additionally, the 2 axes of Pulse Train Output (PTO) enable basic stepper motor control, providing a cost‑effective solution for simple positioning and speed control tasks .
Innovation Point 3: 5 Plug‑in Module Slots for Scalability
The 2080‑LC30‑48QWB accommodates up to five 2080‑series plug‑in modules, allowing system expansion with analog inputs/outputs, RTD/thermocouple modules, or additional communication ports . This modular architecture enables the controller to grow with application requirements, extending its useful lifecycle and reducing the need for a complete controller replacement.
Innovation Point 4: Built‑in Communication and Programming Ports
The integrated USB 2.0 port and combo RS‑232/RS‑485 serial port provide convenient connectivity for programming, commissioning, and communication with Modbus devices . The USB port enables rapid program download and online debugging using Connected Components Workbench (CCW) software, significantly reducing development time compared to legacy serial‑only programming interfaces.
Innovation Point 5: Hazardous Location Certification
The 2080‑LC30‑48QWB carries Class I Division 2 Groups A, B, C, D approval, allowing installation in environments where flammable gases or vapors may be present during abnormal conditions . This certification expands deployment options in chemical processing, oil and gas, and other hazardous areas without requiring expensive explosion‑proof enclosures.
