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CP451-11 S2

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Yokogawa CP451-11 S2 is an FCS processor module for AFV10S and AFV10D stations, with a service-controlled Vnet/IP firmware baseline.
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Technical specifications for CP451-11 S2

  • Manufacturer:
    Yokogawa
  • Part Number:
    CP451-11 S2
  • Product Family:
    Centum CS-Centum VP
  • Product Type:
    CENTUM Processor Module
  • Stock:
    1
  • Compatible FCS Hardware:
    AFV10S and AFV10D
  • Affected Vnet/IP Firmware:
    F1 R31 or earlier
  • Corrected Vnet/IP Firmware:
    F1 R33 or later
  • Firmware Update Method:
    Yokogawa service personnel
  • Weight:
    0.7 kg
  • Estimated shipping dimensions:
    3.2x14.4x19.8cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Singapore
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals FCS Processing Vnet/IP Security Firmware Service Applications

Features:

  • FCS processing: The CP451 family provides processor hardware for AFV10S and AFV10D stations.
  • Firmware-controlled risk: Vnet/IP revision determines whether the published CP451 vulnerability applies.
  • Service-managed update: Yokogawa service personnel perform the firmware update to the corrected baseline.
The page connects the exact -11 Style S2 hardware identity with the operating and maintenance decisions that affect a field control station.

Firmware F1 R33 or later closes the published CP451 network-stack issue that affects F1 R31 or earlier.

A pre-service processor and network baseline gives commissioning a practical reference for redundancy, communication and alarm acceptance.

Apter Power supports Yokogawa CP451-11 S2 CENTUM Processor Module sourcing with station, firmware and maintenance-record review.
Yokogawa CP451-11 S2 CENTUM Processor Module Manuals,Datasheets,Link Important Notice: Confirm the complete model, configuration and host-system records before replacement.
  • Station hardware: The CP451 processor family is used with AFV10S and AFV10D field control stations.
  • Processor identity: Suffix -11 and Style S2 keep the module tied to its documented station build.
  • Redundancy context: A processor event can trigger switchover or affect the standby module in duplexed stations.
  • Operating baseline: Processor role, alarms and network health should be recorded before planned service.
  • Affected range: CP451 Vnet/IP firmware F1 R31 or earlier is within the published vulnerable range.
  • Corrected range: Yokogawa identifies F1 R33 or later as the corrected firmware baseline.
  • Potential impact: The issue can stop a module, disturb duplex operation or reduce Vnet/IP communication.
  • Decision point: The installed firmware revision determines whether corrective service is required.
  • Service boundary: Yokogawa service personnel perform the CP451 Vnet/IP firmware update.
  • Outage planning: Identify the current revision and station redundancy before scheduling the work.
  • Post-update check: Review processor status, Vnet/IP communication and new alarms after service.
  • Record control: Retain the final firmware revision with the exact CP451-11 S2 station record.
  • AFV10S stations: Provides processor hardware for the single-redundant AFV10S field control station family.
  • AFV10D stations: Provides processor hardware for the dual-redundant AFV10D field control station family.
  • CENTUM maintenance: Supports processor replacement and firmware-risk management in documented installations.
  • Reliability planning: Links processor redundancy and Vnet/IP health to the station maintenance plan.
Description
CP451-11 S2 is a Yokogawa field control station processor module used with AFV10S and AFV10D hardware. The full suffix -11 and Style S2 identity keeps the installed processor build tied to the correct station record.

The Vnet/IP firmware level is an operational consideration for CP451-11 S2. Yokogawa identifies F1 R31 or earlier as affected by a network-stack vulnerability and provides F1 R33 or later as the corrected baseline for the CP451 family.

Because firmware updating for CP451-11 S2 is performed by Yokogawa service personnel, maintenance planning should capture the current revision before the outage. Post-service acceptance should include processor status, station redundancy where configured, Vnet/IP communication and the absence of new control-system alarms.
Alternative Names
CP45111S2 CP451-11-S2 CP451 11 S2 CP451-11 Style S2 CP451 11 Style 2 Yokogawa CP451 11 S2 CP45I-11 S2 CP451-II S2
Technical notes
CP451-11 S2 belongs to the CP451 family affected when Vnet/IP firmware F1 R31 or earlier is installed; Yokogawa corrects the issue in F1 R33 or later. The update is a Yokogawa service activity, so the current firmware should be identified before outage planning and the station checked after service.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which field control stations use CP451-11 S2 as a processor module?
The CP451 processor family is used with Yokogawa AFV10S and AFV10D field control stations. The exact -11 and Style S2 build should remain tied to the installed station record.
What firmware condition requires attention on CP451-11 S2?
Vnet/IP firmware F1 R31 or earlier is within the affected CP451 range identified by Yokogawa. The corrected baseline is F1 R33 or later, so the installed revision should be established before maintenance planning.
Can site personnel update the Vnet/IP firmware on CP451-11 S2 themselves?
Yokogawa states that the CP451 Vnet/IP firmware is updated by its service personnel rather than by the customer. The site should coordinate the revision check, outage scope and post-update acceptance in advance.
What operational symptoms can the affected firmware create on CP451-11 S2?
Yokogawa describes possible processor-module stoppage, control switchover or standby-module failure in a duplexed station, and reduced Vnet/IP communication. These conditions make firmware status relevant to both reliability and network diagnosis.
What should be recorded before servicing CP451-11 S2 in a duplexed station?
Capture the active and standby processor status, installed firmware, station identity, current alarms and Vnet/IP health. This baseline helps distinguish a planned switchover from a new processor or communication problem after service.
What acceptance checks are useful after CP451-11 S2 firmware service or replacement?
Confirm the intended processor role, healthy redundancy where configured, stable Vnet/IP communication and no new station alarms. Retain the final firmware revision and exact module identity in the station maintenance record.

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