Yokogawa CP333D CENTUM Processor Card
A processor card for legacy Yokogawa CENTUM field control stations.
Product Profile
Yokogawa CP333D is a processor card used in legacy CENTUM CS field control station hardware. It executes the station control program and participates in the FCS hardware-status and redundancy architecture.
The processor-card style, associated station hardware and installed system release must be captured before sourcing because CP333D revisions and companion assemblies are configuration-controlled.
Technical Data
System Role
Executes the resident control functions for the field control station.
Hardware and software readiness are shown separately by the HRDY and RDY indicators.
CTRL identifies the controlling side in a redundant station arrangement.
COPY indicates processor data transfer during the documented redundancy procedure.
Compatibility
- Match the complete CP333D style and station hardware configuration; CP333D and CP334D must not be treated as the same processor.
- Preserve the approved project backup and station configuration before processor maintenance.
- Use Yokogawa-specified anti-static handling and protect the battery-backed memory procedure.
- A processor exchange must follow the documented controller-side transfer and readiness checks.
Applications
- Maintenance of installed CENTUM CS field control stations.
- Processor-card replacement in a station with matching style and system documentation.
- Legacy control-system spare planning where the station configuration remains unchanged.
- Repair evaluation supported by front-lamp state, alarm history and station records.
FAQ
Q01What should be included in a CP333D enquiry?
Send the processor style, all faceplate and side labels, station model, installed system release, redundancy arrangement and the current alarm record.
Q02Can CP333D be replaced with CP334D because both are processor cards?
No direct substitution should be assumed. The two processor models have different documented memory and system boundaries.
Q03What do the CP333D front indicators add to a fault report?
HRDY, RDY, CTRL and COPY states help separate hardware readiness, program readiness, control ownership and copy activity before the card is removed.
Q04Why must a CP333D project backup be verified before exchange?
The processor participates in station control execution. A current, tested backup and approved restoration path reduce the risk of losing or mismatching the station configuration.
Q05Can CP333D be removed without an ESD and redundancy plan?
No. The maintenance procedure must protect the electronics, confirm the safe controller side and preserve the running process according to the site plan.
