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Phone: +86 16626708626Description
The ABB TB820V2 is a fiber optic communication interface module designed specifically for ABB’s S800 I/O system, a comprehensive and modular process I/O platform widely utilized in industrial automation and process control environments. Its primary purpose is to serve as a ModuleBus modem, bridging electrical and fiber optic communication within control systems, enabling the connection of distributed I/O modules to central controllers or PLCs.
Used in complex industrial applications where I/O clusters need to be distributed locally or where more than 12 I/O modules are required in a single station, the TB820V2 supports both electrical and optical ModuleBus connections. It can connect up to 12 I/O modules electrically while supporting up to seven distinct clusters on the fiber optic ModuleBus, facilitating scalable and flexible system designs.
From a technical perspective, the TB820V2 features two fiber optic ports for connecting to the optical ModuleBus and electrically interfaces to the I/O modules, effectively managing communication traffic and power supply isolation. Its supervisory functions monitor the health of the I/O ModuleBus and power supplies, enhancing system reliability. A rotary switch allows cluster number selection on the optical bus, ranging from one to seven, easing configuration on-site.
The module operates within an ambient temperature range of 0 to 55°C, has relative humidity tolerance of 5% to 95% (non-condensing), complies with CE marking, and meets stringent electrical safety and electromagnetic compatibility standards including IEC and UL certifications. Its compact dimensions (58 mm width, 170 mm height, and 122 mm depth) and a lightweight design (approximately 0.3 kg) enable easy integration into standard control cabinets without occupying significant space. The protection rating is IP20 according to EN60529, offering suitable environmental protection for industrial interiors.
Technical Specifications Summary:
| Parameter | Value |
|---|---|
| Model | ABB TB820V2 |
| Brand | ABB |
| Product Type | ModuleBus Cluster Modem |
| Communication Protocol | ModuleBus |
| Interface Ports | 2 Fiber Optic (Optical ModuleBus) ports, 1 Electrical Interface for I/O modules |
| Max Connected I/O Modules | Up to 12 electrically, 7 clusters optically |
| Operating Temperature | 0 to +55 °C |
| Storage Temperature | -40 to +70 °C |
| Relative Humidity | 5 to 95% (non-condensing) |
| Protection Class | IP20 (EN60529) |
| Dimensions (WxHxD) | 58 mm x 170 mm x 122 mm |
| Weight | Approx. 0.3 kg |
| Certifications | CE, IEC 61010-1, UL 61010-1, cULus, ATEX, Marine (ABS, BV, DNV-GL, LR) |
- TB820V2
Related and compatible ABB modules that integrate well with the TB820V2 include the S800 I/O modules for various digital and analog inputs/outputs, the TB840 and TB841 interface modules for redundant setups, and the TB845/TB846 cable adapters enhancing flexibility in installations.
Installation of the TB820V2 requires careful attention to proper grounding and clearance to ensure optical connections remain intact and interference-free. Its compact size facilitates mounting within existing I/O racks, and the rotary switch for cluster address simplifies network configuration during system commissioning. Regular maintenance includes verifying fiber optic cable integrity and monitoring system diagnostics to prevent communication failures.
