ABB DSBC173A 3BSE005883R1 Bus Expansion Module
The ABB DSBC173A (3BSE005883R1) is a Bus Extender Module for the ABB S100 I/O Bus system, manufactured by ABB (Sweden). It is designed to extend communication distances, enhance signal integrity, and expand network scalability in industrial automation control systems. As a core communication component, it ensures reliable high-speed data transmission between the main controller (PLC/DCS) and distributed I/O modules, even in harsh electromagnetic environments.
Core Purposes:
- Extends the physical reach of the S100 I/O bus beyond standard limits.
- Improves noise immunity and reduces signal attenuation/reflection in long-distance transmission.
- Facilitates flexible expansion of I/O points without compromising communication speed or stability.
- Acts as a terminal/amplifier for the S100 bus, supporting up to 16 network nodes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | DSBC173A (3BSE005883R1) |
| Product Type | S100 I/O Bus Extender / Communication Module |
| Power Supply | 24V DC (±10%) |
| Data Transfer Rate | Up to 1 Mbps |
| Supported Nodes | Max. 16 nodes per network segment |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | 5%–95% non-condensing |
| Dimensions (H × W × D) | 270 mm × 245 mm × 20 mm (10.6″ × 9.6″ × 0.8″) |
| Weight | Approx. 0.3 kg (0.66 lb) |
| Mounting | Standard DIN rail / Panel mount |
| Compatibility | ABB S100 I/O system, AC500/AC800M PLC, DCS systems |
| Protocols | S100 Bus, MODBUS, CANopen, DeviceNet (via gateway) |
Typical Applications
The DSBC173A is widely deployed in process automation and discrete manufacturing sectors requiring high-reliability bus communication:
- Power Generation: Thermal power plants, hydroelectric plants, and substations.
- Petrochemical & Oil/Gas: Refineries, chemical plants, and offshore platforms.
- Metallurgy & Mining: Steel mills, aluminum smelters, and mineral processing plants.
- Water Treatment: Municipal wastewater, desalination, and industrial water systems.
- Heavy Machinery & Automotive: Assembly lines, robotic cells, and CNC machine tools.
- Pharmaceuticals & Food/Beverage: Cleanroom automation and batch processing lines.
Similar Series Products (ABB S100 I/O Bus Family)
- DSBC174A – S100 Bus Repeater (with optical isolation for longer distances and higher noise immunity).
- DSBC172A – S100 Bus Terminal Module (passive termination for short-distance bus segments).
- DSAI130 – Analog Input Module (S100 I/O series, 8-channel 4–20 mA input).
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