The ABB TB820V2 (Part Number: 3BSE013208R1) functions as the primary communication bridge for S800 I/O clusters. This Modulebus Cluster Modem enables the connection between a central controller and remote I/O stations, facilitating high-speed data exchange over optical fiber or electrical links. It serves as the gateway for distributed I/O architectures, allowing engineers to extend the reach of the System 800xA and AC 800M controllers without sacrificing signal integrity. We provide this unit exclusively as 100% Brand New and Original factory-sealed equipment.
| Feature | Specification |
| Model Number | TB820V2 (3BSE013208R1) |
| Product Type | Modulebus Cluster Modem |
| Number of Channels | 1 |
| Communication Speed | 10,000 kbit/s (10 Mbps) |
| Protection Class | IP20 (IEC 60529) |
| Operating Temp | 0 to +55 °C |
| Relative Humidity | 5% to 95% (Non-condensing) |
| Dimensions | 122 mm (D) x 58 mm (W) x 170 mm (H) |
| Pollution Degree | Degree 2 (IEC 60664-1) |
| Weight | 0.3 kg (Net) / 2.0 kg (Shipping) |
High-Speed Deterministic Control: The 10,000 kbit/s throughput ensures near-instantaneous transmission of I/O signals. This high-speed performance allows the controller to maintain precise scan cycles even when managing dense, multi-cluster I/O configurations.
Galvanic Isolation & Noise Immunity: By utilizing fiber optic connectivity for cluster expansion, the TB820V2 isolates sensitive control logic from field-side electrical interference. This solves common industrial pain points like ground loops and electromagnetic interference (EMI) found in heavy manufacturing environments.
Modular Scalability: The compact 58mm width allows for high-density mounting on standard DIN rails. This small footprint enables panel builders to fit more communication interfaces into restricted cabinet spaces, reducing overall enclosure costs.
Hot-Plug Capability: The V2 variant supports robust system availability. It allows for the addition or replacement of downstream I/O modules without interrupting the communication of the entire cluster, significantly reducing maintenance-related downtime.
Environmental Compliance: Adherence to RoHS Directive 2011/65/EU and WEEE Category 5 ensures the module meets modern environmental standards for hazardous substance restriction and electronic waste management.
What is the primary difference between the TB820 and the TB820V2?
The TB820V2 is an enhanced version that offers improved hardware stability and component longevity compared to the legacy V1. The V2 module remains fully backward compatible with existing S800 I/O clusters while providing better resistance to electrical noise and hardware aging.
Does this module require a separate power supply?
The TB820V2 draws its operational power directly from the Modulebus or the connected carrier. However, you must ensure the primary Modulebus power source provides sufficient current to cover the modem and all connected I/O modules in the cluster.
Can I use the TB820V2 for long-distance communication?
Yes. When paired with appropriate optical fiber links, the TB820V2 extends the Modulebus far beyond the limits of standard electrical cabling. This makes it ideal for distributed plant layouts where I/O stations reside in different rooms or remote processing areas.
What are the critical mounting requirements for optimal cooling?
Ensure the module is mounted vertically to allow for natural convection through the IP20-rated vents. Maintain the specified 0 to +55 °C operating range by ensuring the cabinet has adequate ventilation, especially when mounting multiple TB820V2 units in close proximity.
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