Product Overview
The ABB TB820V2 Cluster Modem I/O Module (3BSE013208R1) is a fiber optic interface that connects electrical and optical ModuleBus segments within the S800 I/O system. It enables distributed I/O clusters and supports up to seven clusters on the optical bus. When your process requires more than 12 I/O modules per station, the TB820V2 provides a reliable, high-speed link between clusters and the parent controller.
Key Features & Benefits
- Two fiber optic ports for optical ModuleBus connectivity
- Electrical ModuleBus interface to up to 12 I/O modules
- Supervisory functions for I/O ModuleBus and power supply
- Isolated power supply to I/O modules
- Rotary switch selects cluster number (1–7) on the optical bus
Technical Specifications
| Parameter |
Value |
| Article number |
3BSE013208R1 |
| Communication protocol |
Modulebus |
| Master or slave |
Slave |
| Line redundancy |
No |
| Module redundancy |
No |
| Hot Swap |
No |
| Used together with HI Controller |
No |
| 24 V consumption (typ.) |
100 mA |
| CE marking |
Yes |
| Electrical safety |
EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201 |
| Hazardous location |
C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 |
| Marine certificates |
ABS, BV, DNV-GL, LR |
| Operating temperature |
0 to +55 °C (+32 to +131 °F); approvals issued for +5 to +55 °C |
| Storage temperature |
-40 to +70 °C (-40 to +158 °F) |
| Pollution degree |
Degree 2, IEC 60664-1 |
| Corrosion protection |
ISA-S71.04: G3 |
| Relative humidity |
5 to 95 %, non-condensing |
| Max ambient temperature |
55 °C (131 °F); for vertical mounting 40 °C (104 °F) |
| Protection class |
IP20 according to EN60529, IEC 529 |
| RoHS compliance |
EU RoHS, UAE RoHS, CN RoHS |
| WEEE compliance |
DIRECTIVE/2012/19/EU |
| Width |
58 mm (2.39 in.) |
| Height |
170 mm (6.7 in.) including latch |
| Depth |
122 mm (4.8 in.) |
| Weight |
0.3 kg (0.66 lbs) |
Applications
The ABB TB820V2 is ideal for process industries such as oil and gas, chemical, and power generation where distributed I/O is required. Use it to extend your S800 I/O network beyond the 12-module electrical limit, placing I/O clusters near field devices while maintaining a single control strategy. Its fiber optic interface also provides electrical isolation and noise immunity, making it suitable for harsh industrial environments.
Installation Guidance
Mount the TB820V2 on a standard DIN rail in a suitable enclosure. Set the rotary switch to the desired cluster number (1–7) before powering up. Connect the fiber optic cables to the two optical ports, ensuring proper polarity and cable type. Then connect the electrical ModuleBus cable to the I/O modules. Verify that the power supply meets the 24 V DC requirement (100 mA typical consumption).
Maintenance & Reliability
Regularly inspect fiber optic connections for dirt or damage. Keep the module free of dust to maintain proper cooling. Check the rotary switch position during maintenance to ensure it hasn't been accidentally changed. The TB820V2 is designed for reliable operation within its specified temperature and humidity ranges. Following these simple practices extends its service life and reduces downtime.
Compatibility & Integration
The TB820V2 is part of the ABB S800 I/O family and communicates via the Modulebus protocol. It works as a slave device with parent controllers and PLCs that support the S800 system. It is not compatible with HI controllers. The module supports up to seven clusters on the optical bus, each with up to 12 I/O modules on the electrical side.
Selection Guide
Before purchasing, verify that your system uses the S800 I/O architecture and that the Modulebus protocol is supported. Check your existing cluster configuration and the number of I/O modules to ensure the TB820V2 meets your expansion needs. For reliable sourcing and competitive pricing, consider PLC Source PRO for genuine ABB automation parts.