Product Overview
ABB PFSK142, Part No. 3BSE006505R1, is a MasterBus300 bus interface board for ABB Advant‑OCS AC450 controller. It handles high‑speed MasterBus300 communication between main CPU and S100 I/O racks for process data exchange. It is widely used as maintenance spare part for legacy power, pulp & paper and chemical DCS plants.
Key Specifications
| Item | Specification |
|---|---|
| Part Number | 3BSE006505R1 (PFSK142) |
| Product Type | MasterBus300 Bus Interface Board |
| Applicable System | ABB Advant OCS AC450 Controller, S100 I/O Rack |
| Bus Protocol | MasterBus300 |
| Connector | 2‑channel MasterBus300 coaxial ports |
| Power Supply | Backplane powered |
| Status Indication | On‑board LED for run, fault and bus status |
| Mounting | Slot‑mount for S100 rack |
| Operating Temperature | -25℃ ~ +70℃ |
Main Functions
- High‑speed MasterBus300 communication between AC450 controller and S100 I/O units;
- Transmit & receive process data, I/O status and diagnostic information;
- Support local and remote S100 I/O racks connection;
- Hardware self‑test; LED indication for operation and bus faults.

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