Original ABB DSPU131 3BSE000355R1 digital slave processing unit, interface board for ABB Advant / Freelance DCS system, industrial automation spare part for process control cabinet replacement.

Product Overview

The ABB DSPU131 3BSE000355R1 is a digital slave processing unit and AT‑bus interface board for ABB Advant and Freelance DCS control systems. It handles data transmission and signal interaction between host controller and field I/O modules, ensures reliable bus communication for process automation. Widely used in chemical, power, pulp‑paper industries for equipment maintenance, module replacement and spare‑part stocking.

Key Features

• Professional AT‑bus interface for Advant system data communication
• Stable slave‑side signal processing for field I/O devices
• Industrial‑grade anti‑interference design for harsh workshop environment
• Rack‑mount plug‑in structure for easy installation and maintenance

• Status LED indicators for quick fault inspection and diagnosis

• 
  

Technical Specifications

• Brand: ABB
• Model: DSPU131
• Part No: 3BSE000355R1
• Product Type: Digital Slave Processing Unit / Interface Board
• Bus Type: AT‑bus
• Compatible System: ABB Advant, Freelance DCS System

• Mounting: Rack plug‑in module

• 
  

Compatibility

Compatible with ABB Advant and Freelance DCS platforms, applicable for control cabinet retrofit, old interface board replacement and spare‑parts inventory for process industrial sites.