Product Details
Description
The AO820 features superior channel-to-channel isolation and flexible configuration for current or voltage outputs. It includes advanced diagnostics for loop and hardware health, ensuring precise and stable control through high-resolution D/A conversion. Ideal for power, chemical, and water industries, it delivers reliable performance in demanding environments.
Specifications
-
Manufacturer: ABB
-
Country of Origin: Sweden
-
Model Number: AO820 (3BSE008546R1)
-
Number of Channels: 4 channels, individually isolated
-
Signal Ranges: 0 to 20 mA, 4 to 20 mA, or 0 to 10 V, ±10 V
-
D/A Resolution: 12 bits plus sign
-
Isolation Rating: 50 V continuous channel-to-channel and channel-to-ground
-
Power Supply: 24 VDC nominal
-
Dimensions: 119 mm x 45 mm x 102 mm
-
Physical Weight: 0.22 kg (0.48 lbs)
Features
-
Advanced Galvanic Isolation: Provides dedicated isolation for every channel, eliminating risks associated with ground loops and protecting the system from field-side transients.
-
Bi-Functional Output Support: Capable of delivering both unipolar/bipolar voltage and standardized current loops from a single module type.
-
Integrated Loop Supervision: Automatically detects open-circuit conditions in current mode and short-circuits in voltage mode to ensure loop integrity.
-
Configurable Safety States: Supports user-defined fail-safe actions, such as forcing outputs to a specific safe value or holding the last known state during communication loss.
-
Hot-Swap Compatibility: Engineered for live maintenance, allowing the module to be swapped without powering down the I/O station or affecting adjacent modules.
-
Robust Diagnostic LEDs: Features a comprehensive set of front-panel indicators for rapid identification of module status, communication health, and channel faults.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.