ABB PFBO161 3BSE000460R1 PLC I/O Interface Module

Product Description

The PFBO161 (3BSE000460R1) is a compact PLC I/O and control interface module engineered by ABB for use within its modular automation and distributed control platforms.
This module is designed to manage deterministic digital I/O processing while maintaining stable serial communication in environments that demand fast response times and high operational reliability.

Built around a 32-bit processing core, the PFBO161 supports local digital I/O expansion and coordinated data exchange across distributed control architectures. Its mechanical robustness and wide operating temperature range make it suitable for both cabinet-mounted control panels and harsh industrial installations. The module is commonly deployed as an interface or field-level I/O component within larger control systems where space efficiency and signal integrity are critical.

Key Functional Characteristics

The PFBO161 (3BSE000460R1) delivers deterministic I/O handling with predictable scan cycles, enabling precise control of field devices. Its architecture allows scalable I/O configurations, making it adaptable to both small machine control tasks and larger distributed systems. The integrated RS-485 interface supports reliable serial communication over long distances with strong noise immunity.

Technical Specifications

General

• Model: PFBO161

• Part Number: 3BSE000460R1

• Manufacturer: ABB

• Origin: Sweden

• Module Category: PLC I/O & Control Interface

Electrical Characteristics

• Rated Supply Voltage: 24 V DC

• Maximum Current Consumption: 1 A

• Isolation: Industrial-grade signal isolation (typical for ABB PLC I/O modules)

I/O Capacity

• Onboard Digital Inputs: 8 channels

• Onboard Digital Outputs: 8 channels

• Expandable I/O Capacity: Up to 128 points via system configuration

• Output Type: Transistor-based digital outputs (typical)

Processing & Memory

• CPU Architecture: 32-bit microprocessor

• User Program Memory: Up to 16 MB

• Control Logic Support: Ladder Diagram (LD)

Communication

• Interface Type: RS-485

• Communication Role: Field-level I/O or control interface within distributed systems

Environmental Ratings

• Operating Temperature: −20 °C to +60 °C

• Storage Temperature: −40 °C to +85 °C

• Protection Rating: IP65

Mechanical Data

• Dimensions: 140 × 110 × 40 mm

• Weight: 0.5 kg

Typical Application Scenarios

The PFBO161 is widely applied in factory automation systems, energy management installations, machine-level control panels, and distributed control environments requiring stable digital signal processing. It is particularly suitable for use as a field I/O or interface module within larger ABB-based control architectures where reliability and compact design are essential.

FAQ

Q: Can the PFBO161 be used in distributed control systems?
A: Yes. The module is designed to operate as part of distributed control architectures, supporting scalable I/O expansion and stable serial communication.

Q: What programming method is supported?
A: The module supports Ladder Diagram programming, making it suitable for standard PLC control logic implementation.

Q: Is the module suitable for harsh industrial environments?
A: Yes. With an IP65 protection rating and wide temperature tolerance, it is well suited for demanding industrial conditions.