ABB SC520 3BSE003816R1 Intelligent Sub‑Module Carrier Board

Technical Specifications

Model: SC520

Part Number: 3BSE003816R1

Brand: ABB

Product Type: Intelligent sub‑module carrier board with local CPU

Supported Sub‑Bus: MB300 / MB300E

5V Load Current: 1.5 A

24V Consumption: 6 mA

Typical Power Dissipation: 0.8 W

Backplane Interface: Advant Master internal rack bus

Operating Temperature: ‑20℃ ~ +70℃

Protection Class: IP20

Mounting: Rack slot installation

Core Function: Host sub‑modules and execute local distributed logic processing

Product Details

The SC520 3BSE003816R1 is a local‑CPU carrier board developed for ABB Advant Master DCS system. As dedicated MB300 bus management hardware, it acts as intermediate carrier between main controller and various plug‑in sub‑modules, undertaking local logic calculation and sub‑module resource scheduling work.

This board carries multiple sub‑module slots, which can be fitted with different signal acquisition and communication daughter boards according to project requirements. The integrated on‑board processor runs partial control logic locally, offloading computing pressure from the main controller. The MB300 bus built‑in on the carrier realizes high‑speed data exchange between each sub‑module, improving real‑time response of distributed control loops on site.

Status LED indicators on front panel display carrier running status, bus traffic and sub‑module fault clues. Maintenance personnel can quickly judge slot abnormal state during routine inspection. It possesses complete hardware monitoring function, and will report sub‑module communication failure or power abnormality to upper‑level DCS through backplane bus, shortening on‑site fault diagnosis cycle.

It adopts standard rack‑mount mechanical structure and fits Advant Master rack slots directly. Widely deployed in thermal power, pulp‑paper and chemical industries which are equipped with legacy Advant DCS installations. It is practical hardware for local control capacity expansion, sub‑module function upgrading and aging carrier board replacement for old‑generation Advant automation systems.