Product Details
Description
The ABB TB820 is a ModuleBus Cluster Modem for the S800 I/O system, converting electrical signals to fiber optics for long-distance communication between I/O clusters. It provides full galvanic isolation, strong EMI immunity, and high-speed, deterministic performance, enabling reliable connection of remote I/O stations to an AC 800M controller in harsh industrial environments.
Specifications
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Manufacturer: ABB
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Model Number: TB820
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Order Number: 3BSE008555R1
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Product Type: ModuleBus Cluster Modem
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Communication Media: Fiber Optic (ST Connectors)
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Maximum Distance: 15m with Plastic Fiber (POF); up to 200m with HCS Fiber
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Power Supply: 24V DC (nominal)
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Current Consumption: 150 mA
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Mounting: 35mm DIN Rail
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Weight: 0.25 kg
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Operating Temperature: 0 to +55°C
Features
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Extended Networking: Allows for the expansion of a single controller’s ModuleBus to multiple remote clusters across a plant site.
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Optical Isolation: Protects the controller and local bus from ground loops and electrical surges by providing physical separation via fiber optics.
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EMI/RFI Immunity: Ensures reliable data exchange in areas with high electrical noise, such as near large motors or power switchgear.
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Seamless Scalability: Supports the interconnection of up to seven clusters in a single system branch for flexible hardware distribution.
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Hot-Swap Support: Facilitates system maintenance by allowing modules to be handled without disrupting the entire communication backbone.
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Diagnostic Monitoring: Integrated front-panel LED indicators provide real-time status for power supply and bus activity to simplify troubleshooting.
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
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.