ABB CI547 3BNP004429R1 MB300 Slave‑Processor Communication Board

Technical Specifications

Model: CI547

Part Number: 3BNP004429R1

Brand: ABB

Product Type: Communication board with integrated slave processor

On‑board Chip: Dedicated slave communication processor

Bus Interface: MB300 Masterbus

Physical Connector: D‑Sub 25‑pin

Backplane Supply: Rack backplane power supply

Net Weight: 0.165 kg

Mounting: Rack‑slot installation

Compatible System: Advant Master, PM150 CPU

Operating Temperature: ‑20℃ ~ +70℃

Protection Class: IP20

Core Function: Undertake MB300 bus data processing, reduce computing burden of main PM150 processor

Product Details

The CI547 3BNP004429R1 is a Slave‑processor Comms Board developed for ABB Advant Master DCS platform, it acts as critical MB300 Bus Offload Unit cooperating with PM150 main CPU. It takes over heavy‑duty MB300 bus data parsing and transmission tasks, so that the central processor can focus on core control logic calculation.

Equipped with independent slave processor chip, the module processes MB300 bus telegram locally instead of forwarding all bus load to PM150. The 25‑pin D‑Sub external connector is used for MB300 bus cable connection, realizing high‑speed data interaction between main controller and various SC‑series sub‑module carrier boards. This hardware‑based offloading design improves system real‑time performance under heavy network load.

Front‑panel LED indicators display bus traffic, link status and slave‑processor fault information. Built‑in hardware diagnosis circuit monitors communication timeout and internal hardware anomaly, fault alarms can be reported to DCS host through rack backplane. Maintenance staff can quickly locate bus‑related abnormal points during on‑site inspection and troubleshooting.

Adopting standard rack‑slot mechanical structure, it is directly inserted into Advant Master controller cabinet. Widely deployed in thermal power, pulp‑paper and petrochemical legacy Advant DCS projects. It is essential communication hardware for MB300 bus network optimization, system real‑time performance upgrading and defective communication board replacement for old‑generation Advant automation systems.