Purchase now the 2080-LC20-20QWBR, a ruggedized version of the Micro820 controller specifically designed for harsh industrial environments. This 20-point programmable logic controller features conformal coating to protect internal circuitry from moisture, dust, and chemical contaminants, ensuring long-term reliability in demanding applications.
What Is the 2080-LC20-20QWBR?
The 2080-LC20-20QWBR is a specialized member of the Allen-Bradley Micro820 family, engineered for standalone machine control and remote automation tasks. The «R» suffix indicates that the unit is equipped with a protective conformal coating, making it the ideal choice for wastewater treatment, chemical processing, and outdoor control panels. It features 12 digital inputs and 7 relay outputs, providing a robust interface for diverse AC and DC loads. Beyond discrete control, it includes four configurable analog inputs and one analog output, allowing for integrated process monitoring without additional hardware. With an embedded 10/100 Base-T Ethernet port and a non-isolated serial port (RS232/RS485), this controller offers exceptional connectivity for «The Connected Enterprise,» facilitating seamless data logging via its integrated microSD card slot.
Key Technical Specifications
- Digital Inputs: 12 (24V DC Sinking/Sourcing)
- Digital Outputs: 7 (Relay, 2A per channel)
- Analog Inputs: 4 (0-10V, shared with digital inputs)
- Analog Outputs: 1 (0-10V)
- Communication: Ethernet (10/100 Mbps), Serial (RS232/RS485)
- Special Feature: Conformal Coating for harsh environments
- Memory: 20 KB User Data, MicroSD card slot for external storage
- Power Requirement: 24V DC
Architecture and Environmental Resilience
The architecture of the 2080-LC20-20QWBR is focused on modularity and resilience. It supports up to two 2080-series plug-in modules, allowing users to add specialized I/O or communication protocols like RS485 or additional analog channels without expanding the DIN rail footprint. The conformal coating provides a chemical-resistant layer that prevents dendrite growth and corrosion on the PCB. This makes it particularly effective in coastal environments or facilities with high ambient humidity. The embedded Real-Time Clock (RTC) ensures that scheduled automation tasks and data logging timestamps remain accurate even after power cycles.
Expert Tips
When deploying the 2080-LC20-20QWBR in corrosive environments, ensure that all unused plug-in slots and communication ports are properly capped or sealed. While the internal board is conformally coated, the external connector pins and port terminals remain vulnerable to direct chemical exposure. Additionally, use the integrated microSD slot for high-frequency data logging to prevent internal memory wear, and always use an industrial-grade card rated for the same temperature range as the controller.
Frequently Asked Questions
Q: What is the benefit of the conformal coating on the 2080-LC20-20QWBR?
A: It provides a protective barrier against moisture, humidity, and corrosive gases (Class G3), which are common in wastewater and chemical plants, preventing premature hardware failure.
Q: Can the relay outputs switch both 24V DC and 120V AC?
A: Yes, the relay outputs are dry contacts rated for up to 2A, allowing you to switch a variety of voltages, provided you do not exceed the total module current limits.
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