Invensys Foxboro CM902WQ Control Processor Module – Product Description

Description / Overview

The Foxboro CM902WQ is a high-performance control processor module designed for the I/A Series Distributed Control System (DCS). It serves as the central CPU for executing complex control strategies, coordinating distributed subsystems, and managing real-time communication with field devices. Moreover, its rugged design ensures continuous, reliable operation in demanding industrial environments.

Technical Data / Specifications

• Model: CM902WQ

• Type: Control Processor Module

• System Compatibility: Foxboro I/A Series DCS

• Functions: Executes control strategies, manages communication, coordinates subsystems

• Processor Configuration: Single processor; dual for fault-tolerant setups

• Memory: 16 MB SDRAM, 32 MB Flash

• Input Voltage: 24 VDC (supports redundant supply)

• Power Consumption: ~8.5 W per module

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

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

• Humidity Range: 5% – 95% non-condensing

• Mounting Options: Rack or cabinet installation

• Protection Class: Industrial enclosure, NEMA / IEC rated

• Country of Origin: USA

FAQ

Q1: What is the main function of the CM902WQ module?
A1: It executes control strategies, coordinates subsystems, and manages DCS communication.

Q2: Can it operate in fault-tolerant mode?
A2: Yes, it supports dual processors and redundant power for mission-critical reliability.

Q3: What industries use this module?
A3: Oil & gas, chemical plants, power generation, pulp & paper, and water treatment.

Q4: How is it mounted?
A4: The module can be installed in racks or cabinets depending on system configuration.

Q5: What is the operating temperature range?
A5: 0 °C to +60 °C (32 °F to 140 °F) with full industrial reliability.