Description

ABB TB826 3BSE061637R1

ABB TB826 (Order No. 3BSE061637R1) is an industrial-grade single-mode fiber media converter designed specifically for the S800 I/O system. Its core function is to realize bidirectional signal conversion between short‑distance plastic/HCS fiber and long‑distance single‑mode glass fiber, greatly extending the ModuleBus communication distance, and ensuring high‑speed, reliable, and interference‑immune data transmission between distributed I/O and controllers. It is a key interface module for long‑distance communication in industrial automation.

1 Technical Data

1.1 Communication and Transmission Parameters

Conversion type: Bidirectional conversion, plastic/HCS fiber ↔ single‑mode glass fiber (SC connector).
Transmission distance:

Standard star topology: Up to 5000 m per ModuleBus cluster.
S800 I/O HI mode: Up to 20000 m.

Interface configuration:

Local side: Plastic/HCS fiber interface (for S800 I/O modules).
Long‑distance side: SC‑type single‑mode fiber interface.

Data rate: Adapted for high‑speed ModuleBus communication, response time < 5 ms.
Topology support: Star topology, supports multi‑cluster distributed I/O networking.

1.2 Electrical and Physical Parameters

Power supply: 24 VDC ±20%, suitable for industrial standard DC power supply.
Power consumption: ≤ 5 W, low‑energy design.
Dimensions: 58.5 × 136 × 85.6 mm (W × H × D).
Weight: Approx. 0.27 kg, lightweight for easy DIN‑rail mounting.
Mounting: Standard DIN‑rail mounting, S800L mechanical design, compatible with S800 I/O system cabinets.
Protection degree: IP20, suitable for use inside industrial control cabinets.

1.3 Environmental and Reliability Parameters

Operating temperature: -25 °C to +60 °C, suitable for harsh industrial temperature environments.
Immunity: Industrial‑grade EMC design, with electromagnetic interference immunity and overload protection.
Diagnostics: Built‑in status LEDs for real‑time indication of power, link, and data transmission status, enabling fast troubleshooting.

2 Key Features

2.1 Reliable Long‑Distance Transmission, Breaking Communication Distance Limits

Converts short‑distance local fiber signals of S800 I/O to long‑distance single‑mode signals, extending ModuleBus communication from hundreds of meters to 5 km / 20 km (HI mode). It meets the long‑distance I/O networking requirements of large factories and distributed plants, and completely solves problems of cable length limitation and electromagnetic interference.

2.2 Transparent Data Forwarding, Seamless Compatibility with S800 I/O

As a ModuleBus slave, it forwards data and diagnostic information fully transparently without changing the original communication protocol or data format. No modification to PLC/controller programs is required; it is plug‑and‑play and can be quickly integrated into existing S800 I/O systems, reducing system retrofit difficulty and cost.

2.3 Industrial‑Grade Design for Harsh Conditions

Robust S800L mechanical structure with DIN‑rail mounting, suitable for standard industrial control cabinet layouts.

Wide temperature range, low power consumption, IP20 protection, and high EMC immunity ensure stable long‑term operation in industrial sites with dust, vibration, and large temperature variations.

Built‑in comprehensive diagnostics enable quick fault location via LEDs, reducing downtime and maintenance time.

2.4 Flexible Networking, Supporting Distributed I/O Architecture

Supports star topology and can connect multiple clusters of S800 I/O modules to realize centralized management of distributed I/O. It is suitable for large‑scale distributed control systems in chemical, power, metallurgy and other industries, improving system scalability and deployment flexibility.

3 Typical Applications

Distributed I/O in large factories: Connects geographically dispersed S800 I/O modules with the central PLC to achieve long‑distance, interference‑immune process data acquisition and control.
Long‑distance equipment monitoring: Used in outdoor/long‑distance scenarios such as mines, ports, oil and gas, replacing traditional cables to solve electromagnetic interference and distance limitations.
S800 I/O system expansion: Quickly extends communication to 5 km / 20 km for existing S800 I/O systems without replacing the main controller or I/O modules.
Industrial automation networking: Adapted for DCS/PLC systems in chemical, power, metallurgy, paper and other industries to build high‑speed, reliable distributed I/O communication networks.