Description
Product Overview
The CP471-01 is a high-performance field control processor module for Yokogawa CENTUM VP DCS platform. It serves as the core CPU of the Field Control Unit (FCU / FCS), executing continuous control logic, sequence control, data acquisition and ESB bus communication. It is the successor of CP461 and supports hot-swap in duplex redundant configuration for oil & gas, chemical, power and pulp & paper processes.
Technical Specifications
| Item | Parameter |
|---|---|
| Manufacturer | Yokogawa |
| Part Number | CP471-01 |
| Product Type | DCS Processor / CPU Module |
| Applicable System | CENTUM VP R6.01 or later; recommended R6.05+ |
| Memory | 2 GB RAM, 512 MB Flash |
| Communication | ESB Bus (requires EC401 coupler S3 or newer) |
| Redundancy | Dual redundant duplex configuration, hot failover |
| Mounting | FCU rack slot |
| Dimensions | 170 mm × 105 mm × 32 mm |
| Weight | 1.0 kg |
| Operating Temperature | 0°C ~ +55°C |
| Environmental Rating | ISA G3 industrial grade |
Key Features
- Yokogawa proprietary system LSI processor, stable long-term supply, less risk of component obsolescence.
- Supports online hot replacement for redundant FCS without plant shutdown.
- Executes PID, cascade, batch and interlock control; manages I/O scanning and alarm processing.
- Built-in self-diagnostics, status LEDs and fault reporting for rapid troubleshooting.
- Backward compatible to replace CP461 after proper system firmware upgrade.
- Rugged construction for continuous operation in heavy industrial control rooms.
Installation & Testing Notes
- Strict ESD protection required during handling and replacement.
- Install in paired slots for duplex redundancy; match compatible EC401 ESB bus coupler.
- Confirm CENTUM VP software version and apply required patches before module upgrade.
- After insertion, verify power, link status LEDs, download control configuration and perform online redundancy switchover test.
- Inspect edge connector for oxidation, bent pins or physical damage before spare deployment.
FAQ
Q: What system is CP471-01 used for? A: It is the FCU processor for Yokogawa CENTUM VP DCS, used in process control stations.
Q: Does it support hot swap? A: Yes, in dual-redundant FCS configuration, online hot replacement is available.
Q: Can it directly replace CP461? A: Yes, but the CENTUM VP system software must be upgraded to R6.05 or higher first.
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