FOXBORO RH924UQ Redundant Controller module

FOXBORO RH924UQ Redundant Controller module

FOXBORO RH924UQ: This redundant controller module is one of the core components of the FOXBORO I/A Series distributed control system (DCS).

It has a powerful process control capability, supports dual-machine hot standby operation, power supply voltage: 24V DC, protection grade:

IP20, operating temperature: 0°C to 50°C.

It is widely applied in key industrial fields such as power, chemical engineering, and metallurgy to ensure high system availability and control continuity.

Main features and advantages

Let’s first talk about its redundancy capability.

This is no simple backup. FOXBORO RH924UQ supports true Hot Standby, with extremely short primary and backup switching times, usually completed within milliseconds, ensuring the continuity of the control process.

This is crucial for applications that do not allow interruption, such as steam turbine control and reactor temperature regulation.

The module integrates status monitoring and self-diagnosis functions internally, which can report the hardware health status in real time, helping Maintenance personnel identify potential problems in advance and achieve Predictive Maintenance.

Let’s take a look at its integration.

As part of the I/A Series system, FOXBORO RH924UQ is seamlessly integrated with FOXBORO’s FBM (Fieldbus Module) series I/O modules, FHM (Highway Module) communication modules, etc.

It achieves high-speed data exchange through FOXBORO’s proprietary Universal Control Network(UCN) and Input/Output Network(I/O Network), with stable communication rate and low latency.

This highly integrated design greatly simplifies the system configuration and debugging work.

Moreover, it supports online replacement (plug and unplug while powered on), allowing module replacement or upgrade to be completed without shutting down the system, which greatly enhances the maintainability of the system.