Yokogawa CP451-10 Processor Module
Place of Origin:
JAPAN
Brand Name:
Yokogawa
Yokogawa CP451-10 Processor Module
Processor module for the AFV10-series Field Control Unit in Yokogawa CENTUM VP control systems. Used in single or dual-redundant processor arrangements according to the system configuration
Product Overview
Processor & control stationThe CP451 processor module provides the processing function for Yokogawa AFV10-series Field Control Units used in CENTUM VP. The field control station connects the field-control system to its configured I/O node units through ESB or ER bus interfaces.
In a dual-redundant configuration, the FCU uses two CP451 processor modules. The host unit, processor arrangement, bus interface modules and control-function software must match the installed system design.
Technical Specifications
Module & system data| CP451 processor module | |
|---|---|
| Model | CP451-10 |
| Module type | Processor module for the Field Control Unit (FCU) |
| Processor | VR5432 |
| Processor clock | 133 MHz |
| Main memory | 32 MB |
| Memory protection during power failure | Battery-backed main memory; backup time up to 72 hours |
| Battery recharge time | At least 48 hours |
| Redundant arrangement | Two CP451 processor modules in a dual-redundant FCU configuration |
| AFV10-series FCU system configuration | |
| Associated FCU models | AFV10S and AFV10D |
| Control network | Dual-redundant Vnet/IP interface |
| Connectable node units | Up to 14 node units per FCU in total; ESB Bus Node Units are limited to 9 or fewer |
| Control-function software | LFS1500 for the AFV10-series Field Control Unit |
| Node expansion | LFS1550 Application Capacity Expansion Package can increase the node-unit capacity where required |
| Power supply modules | PW481, PW482 or PW484; two modules for a dual-redundant power-supply arrangement |
| ESB bus connection | EC401 ESB Bus Coupler Modules are installed in slots 7 and 8 for a dual-redundant processor configuration. For a single ESB configuration, EC401 is installed in slot 7 and slot 8 remains empty. |
| ER bus connection | EB401 ER Bus Interface Master Module is used for connection to ER Bus Node Units. Single configuration uses an odd-numbered slot, with the slot immediately to its right left empty. |
The processor and memory figures above describe the CP451 processor specification. Power input, power consumption, mounting dimensions and weight vary by the AFV10-series FCU configuration and are not listed as CP451 module ratings.
System Configuration
FCU & node connectionsThe AFV10-series Field Control Unit operates as part of a Field Control Station. ESB Bus Node Units connect through EC401 bus coupler modules; ER Bus Node Units connect through EB401 interface modules.
For a dual-redundant processor arrangement, the CP451 pair and the relevant bus-interface arrangement must be configured together. Node expansion also depends on the applicable software package and system configuration.
Bus interface and configuration details
ESB bus: EC401 is installed in slots 7 and 8 when the processor modules use a dual-redundant configuration. For a single ESB configuration, install EC401 in slot 7 and leave slot 8 empty.
ER bus: EB401 is installed in an odd-numbered slot for a single configuration, leaving the slot immediately to its right empty.
Node expansion: LFS1500 is the control function for the AFV10-series FCU. LFS1550 can expand node-unit capacity beyond the base configuration.
Application & Failure Scenarios
Maintenance contextProcessor replacement
Relevant when a CP451 processor is diagnosed as faulty or requires planned replacement in an AFV10-series FCU.
Redundant processor maintenance
For dual-redundant installations, confirm the active and standby module status and follow the site-approved maintenance sequence before replacing a processor.
Control station disruption
A processor fault can affect field-control execution. The resulting process impact depends on the FCU configuration, redundancy state and affected control functions.
Delivery & Warranty
Supply information| Pre-dispatch checks | Part-number and visual inspection; functional testing where applicable and available for the supplied unit. |
|---|---|
| Packaging | Protective packaging, with anti-static protection where appropriate. |
| DOA / transit issue | Report promptly with the order reference, product label photo and supporting evidence for assessment. |
| Returns and warranty | Coverage and return eligibility follow the terms confirmed in the quotation or order. Incorrect installation, misuse and unauthorized modification may be excluded. |
Request a CP451-10 Quotation
Contact Miya Zheng for model identification and sourcing inquiries.
Include the complete model marking and system details so the requested version can be identified accurately.
RFQ Information
Please provide Part Number, Quantity, Destination, Required Date, and Machine/System Model.
Frequently Asked Questions
CP451-101. Which field control units use the CP451 processor?
2. What are the processor and memory specifications?
3. How long is the main-memory battery backup?
4. How many CP451 modules are required for a dual-redundant configuration?
5. What should be confirmed before replacing a CP451-10?
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