Description
Application Scenarios
In nuclear power plant control rod position monitoring systems and turbine supervisory systems, I/O modules must operate continuously for years without failure while maintaining diagnostic coverage above 99%. The RTP 3021/00 addresses this requirement through the RTP 3000 platform’s fault-tolerant architecture, where I/O cards support online hot-swap replacement and unlimited online downloads without process interruption . When a channel fault is detected, the system’s diagnostic voting logic filters the error before it propagates to the control output, allowing maintenance to replace the card while the plant continues operating .
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | 3021/00 |
| Manufacturer | RTP Corp. (RTP Corporation) |
| Product Category | SER 3000 I/O Card / Digital I/O Module |
| System Platform | RTP 3000 TAS (Total Automation System) |
| Safety Certification | TÜV SIL 3, Exida SIL 3, CE, KC |
| Response Time (input to output) | 12 ms (system-level) |
| SOE Resolution | 1 ms (DI and AI) |
| Diagnostic Coverage (SFF) | >99% |
| Hot-Swap Capability | Yes (online replacement supported) |
| Online Configuration Download | Unlimited (no periodic shutdown required) |
| Mounting | 19-inch rack chassis (any available slot) |
| Environmental Certification | TÜV, Exida, CE, KC |
| Typical Applications | Nuclear I&C, turbine control, critical process SIS |
Technical Principles and Innovative Values
Innovation Point 1 — Hybrid Fault-Tolerant Architecture: The RTP 3021/00 operates within RTP’s “Hybrid Architecture” that separates diagnostic voting logic from the I/O point level. The platform supports 1oo1D, 1oo2D, 2oo3D, and 2oo4D diagnostic voting mechanisms, where a fault in a preceding stage is filtered out before it affects the output decision . This means the 3021/00 can be deployed in configurations ranging from simplex to quad-redundant without requiring special redundant I/O modules—redundancy is configured on a point-by-point basis .
Innovation Point 2 — Unlimited Online Modification: Unlike conventional TMR systems where configuration changes require process shutdown, the RTP 3021/00 supports unlimited online downloads of logic and configuration updates during operation. The system writes updates to a second memory area and switches seamlessly, ensuring the controller remains operational whether in single or redundant mode . Even operating system expansions can be performed during runtime .
Innovation Point 3 — Built-In Proof Test Diagnostics: The RTP 3000 platform’s built-in proof test diagnostics eliminate the need for periodic shutdowns at proof test intervals, a requirement that typically forces SIS systems offline for verification . The 3021/00 contributes to the system’s MTTFS (Mean Time To Fail Safe) exceeding 50,000 years and MTTF (Mean Time To Failure) exceeding 50,000 years .
Application Cases and Industry Value
Case 1 — Nuclear Power Plant Control Rod Position Monitoring: A nuclear research institute in South Korea deployed RTP 3000 systems, including SER 3000 I/O cards, for control rod position monitoring and turbine supervisory applications. The system’s self-diagnostic capabilities on CPU, power supply, I/O cards, and communication modules allow operators to identify and respond to system anomalies before they escalate. The RTP platform’s TÜV and Exida SIL 3 certifications were cited as key selection factors for the safety-critical application .
Case 2 — Turbine and Compressor High-Speed Control: RTP 3000 TAS provides integrated solutions for rotating machinery control, with special intelligent I/O cards (including 20AI/DI + 10DO hybrid control cards) capable of executing local control algorithms independent of the main controller at 1 ms control cycles. This capability is critical for turbine overspeed protection and compressor surge control, where the RTP 3021/00-series I/O cards interface with high-speed pulse and servo control cards to maintain safe operation during transient events .
