Schneider Electric RH924WA | SCD5200 CPU Module RTU Station Processor

Product Description

Overview

The RH924WA by Schneider Electric is a high-performance CPU module designed for the SCD5200 Station Computing Device within Foxboro I/A Series and EcoStruxure DCS environments. Serving as the core processing unit, it manages real-time data acquisition, executes complex logic functions, and enables seamless communication between field devices and supervisory control systems. Built for reliability in harsh industrial environments, the module supports multiple communication standards and provides high availability for mission-critical operations.

Key Features

• Dual-core 32-bit embedded processor for intensive computation and multi-protocol handling

• Redundant configuration support for uninterrupted operation

• Native support for IEC 61850, DNP3, Modbus, and IEC 60870-5 protocols

• Integrated cybersecurity to protect critical substation data

• Hot-swappable in redundant setups for zero-downtime maintenance

Technical Specifications

Hardware

• Module Type: CPU / Station Processor for SCD5200

• Processor: High-performance 32-bit embedded dual-core

• Memory:

• RAM: High-capacity SDRAM for application and volatile data

• Flash: Non-volatile storage for firmware, configuration, and event logs

• Real-Time Clock (RTC): Battery-backed, high-precision, supports NTP/IRIG-B synchronization

Communications

• Ethernet: 2 × 10/100 Mbps RJ45, supports redundancy and link teaming

• Serial: RS-232 / RS-485 for legacy device integration

• Protocols:

• IEC 61850 (MMS & GOOSE messaging)

• DNP3 (Serial/IP)

• Modbus RTU/TCP

• IEC 60870-5-101/103/104

Performance

• SOE: 1 ms timestamp resolution for precise event recording

• Logic Programming: Compatible with ISaGRAF or IEC 61131-3 environments

• Database Capacity: Handles thousands of physical and calculated points

Environmental & Physical

• Operating Temperature: -40°C to +70°C

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 5% to 95% (non-condensing)

• Mounting: SCD5200 backplane or chassis

Application Scenarios

• Electrical substations: Station controller for IEDs and grid automation

• Oil & gas pipelines: Remote monitoring and control

• Water treatment facilities: Distributed pump station management

• Smart grid systems: Data concentrator for high-speed telemetry

Maintenance & Compatibility

• Hot-swappable in redundant configurations

• Front-panel diagnostic LEDs for CPU status, communication activity, and system errors

• Configurable via Foxboro Configurator software

• Verify hardware revision for compatibility with backplane and firmware

Fiber Optic Network Adapter Option

The RH924WA Fiber Optic Network Adapter supports FCP280 for high-speed data transfer in SAN and enterprise networks. Ensure firmware is up to date, network components support FCP280, and cable specifications meet maximum distance requirements.

FAQ

Q: Can the RH924WA module handle legacy serial devices?
A: Yes, it provides RS-232 and RS-485 ports for legacy equipment integration.

Q: Is the module hot-swappable?
A: Yes, in redundant configurations, it can be replaced without system downtime.

Q: What programming environments are supported?
A: ISaGRAF and other IEC 61131-3 compliant environments.