Description
-
BrandYOKOGAWA
-
ModelCP471-00
-
Product NameCENTUM VP Processor Module
-
Dimensions198 mm × 145 mm × 32.8 mm
-
Weight0.7 kg
-
Place of OriginJapan
-
HS Code85371011
-
Operating Temperature0 ℃ to +60 ℃
-
Storage Temperature-40 ℃ to +85 ℃
-
Power Supply0.6 A
-
Warranty12 month
-
Statusoriginal
CP471-00 YOKOGAWA Technical Specifications and Features
The CP471-00 is a processor module designed for Yokogawa CENTUM VP DCS Field Control Station (FCS), serving as the standard basic model without explosion-proof specifications. It is equipped with Yokogawa proprietary system LSI chips to provide reliable and stable process control for continuous industrial production.
Compatibility: It is applicable to AFV30, AFV40, A2FV50 and A2FV70 series field control units. It works with CENTUM VP R5.01 and newer software releases. Online replacement of CP461 is supported once the system is upgraded to R6.05.
Redundancy support: Dual redundant architecture is available. A pair of CP471 modules can be fitted into duplex FCS racks to achieve bumpless automatic failover and avoid production disruption.
Weight: Around 700g.
Mounting: Rack-mounted design matching the FCS backplane; hot swapping is permitted under redundant operation.
Control function: It executes continuous control logic, sequence control, arithmetic calculation and alarm handling. Supported control types include PID, cascade control, ratio control and batch control.
Communication interface: Integrated dedicated control bus ports for local I/O module communication; it links to the V net control network to exchange data with operator stations and engineering stations.
Diagnosis function: Built-in comprehensive self-diagnosis monitors CPU, memory, bus circuits and power supply. Fault status and alarm messages can be transmitted to HMI for maintenance notification.
Environmental rating: Standard industrial grade for ordinary control cabinet environments. The CP471-00 does not feature ISA G3 anti-corrosion coating; the CP471-01 variant provides this G3 coating option.
Long-term supply advantage: It uses Yokogawa custom LSI rather than off-the-shelf general-purpose chips, lowering the risk of component obsolescence and ensuring sustainable spare part supply.
Applicable I/O: Compatible with both conventional I/O modules and Network-IO modules on the CENTUM VP platform.
Application orientation: Commonly used in oil & gas, chemical, power, metallurgy and other process industries to implement critical control loop management.
Redundancy Support of CP471-00 YOKOGAWA
The CP471-00 adopts Yokogawa mature Pair & Spare dual-redundant architecture for CENTUM VP FCS (Field Control Station). Two matching CP471-00 modules are installed in a duplex FCS rack, operating as the active unit and standby unit separately.
Both modules run the same control application at the same time and synchronously execute consistent control logic, PID computation, sequence programs and alarm handling. Real-time process values, control parameters, setpoints and internal runtime status are continuously synchronized between the active and standby CP through dedicated redundancy links. Under normal working conditions, the standby module keeps tracking all operating status without sending out control commands.
Onboard diagnostic circuits continuously monitor the CPU, memory, bus interface, power supply and communication status of both CP boards. If the active module suffers a detectable fault including CPU breakdown, memory fault, bus failure or power anomaly, the system will activate automatic bumpless failover immediately. Control authority transfers to the standby module, and control outputs stay stable without impacting field regulating valves, motors and other field equipment; the production process keeps running without interruption during switching.
Redundancy configuration rules: A redundant group must be composed of two CP471-00 modules. It is not permitted to mix CP471-00 and CP461 within the same redundant pair. The CENTUM VP software shall be R5.01 or above; relevant patches are mandatory for versions prior to R6.05.
Online maintenance is available under redundant mode. Faulty CP471-00 modules can be hot-swapped while the FCS stays online. The active CP takes charge of the whole control loop continuously. Once replacement completes, the new module will automatically synchronize all control data and return to standby mode.
This CP redundancy scheme works in coordination with redundant V net/IP and ESB bus. Dual communication links connecting CP modules, I/O modules and operator stations together with CPU redundancy build a fully fault-tolerant control subsystem.
Manual switchover can be triggered via the engineering station or operator station. Users may initiate handover between active and standby CP for scheduled maintenance and function validation.
FAQ for YOKOGAWA CP471-00 CENTUM VP Processor Module
Q1: What is Yokogawa CP471-00?
A: Yokogawa CP471-00 is a processor module for the CENTUM VP DCS Field Control Station (FCS). It executes real-time control logic, data processing and communication tasks for process automation systems.
Q2: Which CENTUM VP version does CP471-00 support?
A: CP471-00 works with CENTUM VP R5.01 and later versions, compatible with AFV30, AFV40, A2FV50, A2FV70 series FCS units.
Q3: Does CP471-00 support dual redundant configuration?
A: Yes. Two CP471 modules can be installed in duplex FCS for dual redundancy, supporting automatic failover to avoid control interruption for critical process plants.
Q4: Can CP471-00 replace CP461 directly?
A: It cannot be swapped directly online. System configuration upgrade and engineering verification are required, and a planned shutdown is needed for migration.
Q5: What industries commonly use Yokogawa CP471-00?
A: It is widely used in chemical, petrochemical, oil & gas, power generation, pharmaceutical, pulp and paper, and water treatment plants running Yokogawa CENTUM VP DCS.
Q6: Is hot swapping available for CP471-00?
A: CP471-00 does not support hot swap. Module replacement needs system shutdown and should be operated by qualified DCS technicians.
.jpg)
.jpg)
