Foxboro 1025120B Fieldbus Module

Product Description

The Foxboro 1025120B is a precision Fieldbus Module (FBM) engineered for Foxboro I/A Series distributed control systems (DCS). It is specifically designed to acquire analog signals from field transmitters and sensors, delivering accurate data to the control processor for reliable process monitoring and control.

Its modular, compact design allows straightforward installation in control cabinets, while its rugged construction ensures dependable operation in demanding industrial environments. The 1025120B supports multiple analog input channels, 16-bit resolution, and standard 4–20 mA signal loops, providing high accuracy for critical process variables. Redundant power support and over-voltage/short-circuit protection enhance fault tolerance and system reliability.

Technical Specifications

• Model: 1025120B

• Product Type: Fieldbus Module (Analog Input)

• Manufacturer: Foxboro (USA)

• Series: I/A Series DCS

Input & Signal Handling

• Function: Analog input acquisition from field instruments

• Input Channels: Typically 8–16 channels depending on configuration

• Signal Range: 4–20 mA standard industrial current loop

• Resolution: 16-bit high precision

• Accuracy: ±0.1% of span

Power & Environmental

• Supply Voltage: 24 VDC (supports redundant supply)

• Operating Temperature: 0°C to +60°C (32°F to +140°F)

• Protection: Over-voltage and short-circuit protection

Mechanical Dimensions

• Size: 114 × 61 × 23 mm

• Weight: 0.5 kg

• Integration: Fully compatible with Foxboro I/A Series controllers and PAC systems

Key Features

• High-precision analog input measurement for critical process control

• Compact modular form factor for cabinet installation

• Seamless integration with Foxboro I/A Series DCS

• Robust construction suitable for harsh industrial conditions

• Redundant power support for enhanced fault tolerance

Typical Applications

• Chemical plants: Monitoring flow, pressure, and temperature transmitters

• Oil & gas facilities: Supervising pipeline sensors and refinery instruments

• Power generation: Turbine and boiler instrumentation

• Pharmaceuticals: Ensuring precise production condition monitoring

• Water treatment: Measuring conductivity, pH, and other water quality parameters

FAQ

Q: How many analog inputs can the 1025120B handle?
A: It typically supports 8–16 analog input channels, depending on module configuration.

Q: What is the signal range and resolution?
A: Supports standard 4–20 mA loops with 16-bit high-precision resolution.

Q: Is the module fault-tolerant?
A: Yes, it supports redundant 24 VDC power and has over-voltage and short-circuit protection.