Foxboro P0923NB-OB Control Processor & Output Module

Overview

The P0923NB‑OB by Foxboro is a high-performance control processor and output module engineered for the Foxboro I/A Series DCS. Combining real-time control execution, data acquisition, and industrial communication interfaces, it delivers reliable operation in demanding industrial conditions. The module is optimized for fault-tolerant configurations with redundant 24 VDC power, supporting continuous analog, discrete, sequential, and batch control strategies.

Technical Specifications

General Information

Functional Capabilities

• Executes continuous, logic, sequential, and batch control

• Real-time data acquisition for critical process monitoring

• Supports dual-module fault-tolerant operation

• Integrates with I/A Series FBM modules

• Designed for high-vibration and high-temperature environments

Processor & Memory

Electrical Specifications

• Input Voltage: 24 VDC (redundant power supported)

• Power Consumption: ≤ 8.5 W (typical)

Output Characteristics

• Output Types: Analog and digital signals

• Signal Options: 4–20 mA, 0–10 V

• Maximum Output Current: 20 mA per point

• Galvanic Isolation: Channel-to-channel isolation for enhanced safety

Communication Protocols

• Modbus

• Ethernet

• HDLC Fieldbus

Environmental Ratings

• Operating Temperature: 0°C to +60°C

• Humidity: 5–95% RH, non-condensing

Physical & Installation

• Mounting: DIN rail or modular baseplate

• Module Design: Compact, industrial-grade construction

Key Features

• High-performance control processor for Foxboro I/A Series DCS

• Supports analog and digital output strategies

• Fault-tolerant with redundant 24 VDC power

• Integrated Modbus, Ethernet, and HDLC communication

• Galvanic isolation for safe and stable operation

• Designed for harsh industrial conditions

• Ideal for real-time, mission-critical process control

Applications

Perfect for chemical processing, power generation, oil & gas, water treatment, and advanced manufacturing environments where reliable and continuous control is essential.

FAQ

Q: Can the module handle high-vibration industrial environments?
A: Yes, the P0923NB‑OB is designed for high-vibration and high-temperature applications.

Q: Does it support redundant power and fault-tolerant configurations?
A: Yes, the module supports dual-module fault-tolerant setups with redundant 24 VDC power.