ABB 3BSE088189R1 Communication Module

• • • • • • • • ABB 3BSE088189R1 Communication Module (AC 800M / S800 I/O System – SD854 Power Supply Class Module)

              • Product Description

                The ABB 3BSE088189R1 (Type: SD854) is a power supply / system module used in ABB AC 800M and S800 I/O systems. Although it is sometimes described as a “communication module” in listings, its correct function is a system power and backplane support module, which helps enable stable controller-to-I/O communication inside ABB automation systems.

                It is widely used in ABB 800xA / AC 800M distributed control systems (DCS).

                ---

                Key Specifications

                • Brand: ABB
                • Part Number: 3BSE088189R1
                • Type Designation: SD854
                • System: AC 800M / S800 I/O system
                • Type: Power supply module (system module)
                • Input Voltage: 100–240 V AC / 110–150 V DC
                • Output: 24–28 V DC regulated system power
                • Current Rating: Up to ~20A class system supply
                • Mounting: DIN rail / system rack integration
                • Function: System power distribution + backplane support

                ---

                What it actually does

                This module does not directly process signals like a PLC CPU or I/O module. Instead it:

                • Provides stable power to AC 800M / S800 system modules
                • Supports communication stability between CPU and I/O modules
                • Supplies backplane voltage for system operation
                • Ensures reliable operation of distributed control architecture

                 

                ---

                System Role (Simple)

                Main AC/DC supply
                → SD854 (3BSE088189R1)
                → powers backplane + modules
                → AC800M controller + S800 I/O communicate normally

                Without it, the system rack cannot operate correctly.

                ---

                Key Features

                • High-reliability industrial power module
                • Designed for ABB AC 800M / S800 architecture
                • Stable 24–28V DC system output
                • Supports distributed control system operation
                • Robust design for continuous industrial use
                • Plug-in rack/system integration design

                ---

                Typical Applications

                • ABB 800xA distributed control systems
                • AC 800M controller systems
                • S800 I/O automation racks
                • Power plants
                • Oil & gas process control
                • Chemical and refinery automation
                • Industrial process industries

                ---

                Advantages

                • Ensures stable system communication and operation
                • Centralized power distribution for automation racks
                • High reliability in mission-critical systems
                • Reduces system instability caused by power fluctuation
                • Designed specifically for ABB DCS ecosystem

                ---

                Important Notes

                • Not PLC CPU ❌
                • Not I/O module ❌
                • Not field communication module (Profibus/Ethernet) ❌
                • It is a system power supply module for ABB DCS racks ✔

                ---

                Precautions

                • Must be used only in compatible ABB AC 800M / S800 systems
                • Incorrect installation can cause system shutdown
                • High current system → ensure proper cooling and grounding
                • Not interchangeable with generic 24V power supplies
                • System configuration must match ABB engineering design 

The structure and details of the product：