YOKOGAWA NFCP100-S00 Retrofit-Ready FCS CPU for CENTUM VP Control Systems
The YOKOGAWA NFCP100-S00 is a Field Control Station (FCS) CPU module engineered for the CENTUM VP Distributed Control System platform. Designed to serve as a direct retrofit replacement for aging or discontinued FCS processors in legacy CENTUM CS 3000 and early CENTUM VP installations, this module enables plant operators to restore full control capability with minimal engineering rework. Whether you are managing an unplanned failure, executing a planned system modernization, or expanding an existing control architecture, the NFCP100-S00 delivers the processing performance, protocol compatibility, and physical form factor required for a smooth transition.
Upgrade Compatibility Table
| Parameter | Details |
|---|---|
| Compatible Platform | YOKOGAWA CENTUM VP, CENTUM CS 3000 (with engineering review) |
| Communication Protocol | Vnet/IP (V net over Ethernet, IEC 61784 compliant) |
| Backplane Interface | CENTUM VP standard FCS node unit backplane slot |
| Installation Type | Direct slot replacement — no mechanical modification required |
| Replacement Target | NFCP100, NFCP100-S10, legacy SFCS CPU variants |
| Program Compatibility | Existing FCS application logic retained; re-download required after swap |
| HMI Compatibility | Compatible with CENTUM VP HIS (Human Interface Station) and existing operator graphics |
| Commissioning Requirement | Module address assignment, Vnet/IP node configuration, and FCS download via Engineering Workstation (EWS) |
| Firmware | Confirm target firmware revision matches site CENTUM VP software version |
| Warranty | 12 months from date of shipment — covers manufacturing defects and functional failure |
Retrofit Planning for Existing Automation Systems
A successful NFCP100-S00 retrofit begins well before the module arrives on site. Engineers should first audit the existing FCS node unit to confirm the installed CENTUM VP software revision, the current FCS application version stored on the Engineering Workstation (EWS), and the Vnet/IP network topology including switch port assignments and IP address allocation. The NFCP100-S00 occupies the standard CPU slot within the FCS node unit; adjacent modules such as the NFCP100 power supply module, the NFCP100 I/O bus interface, and installed NFDV141 or NFDV151 analog input modules remain in place and do not require removal during the CPU swap.
Terminal wiring connected to field I/O modules — including NFAI143 analog input, NFAO141 analog output, NFDI141 digital input, and NFDO141 digital output modules — is unaffected by the CPU replacement, provided the I/O module addresses and channel assignments remain unchanged. Engineers should document all existing module slot addresses using the CENTUM VP System View utility prior to shutdown to ensure the replacement CPU is configured with identical node and domain parameters.
For sites migrating from CENTUM CS 3000 to CENTUM VP, the NFCP100-S00 may serve as the target CPU in a phased migration strategy. In this scenario, the existing SFCS or KFCS2 CPU is decommissioned, the FCS application is converted using the CENTUM VP migration tool, and the NFCP100-S00 is commissioned as the new FCS processor. The Vnet/IP communication card — typically the NFCP100 integrated Vnet/IP interface — must be configured with the correct domain number, station number, and IP address before the FCS download is initiated from the EWS. The CENTUM VP HIS operator stations and associated faceplates require no modification when the FCS application logic is preserved during migration.
For installations requiring expanded I/O capacity, the NFCP100-S00 supports connection of additional FCS node units via the Vnet/IP network, allowing engineers to add NFDV-series or NFAI-series I/O expansion units without modifying the primary control cabinet wiring. This capability is particularly valuable in retrofit projects where the original control cabinet has reached its physical I/O density limit.
Downtime Control During System Migration
Minimizing unplanned downtime is the primary operational concern in any FCS CPU replacement. The recommended approach is to pre-stage the NFCP100-S00 by loading the current FCS application from the EWS onto the replacement module in a bench environment before the scheduled maintenance window. This pre-loading step — supported by CENTUM VP’s offline FCS download function — allows the module to be verified for correct program execution, Vnet/IP connectivity, and I/O module recognition before it enters the live plant environment.
During the actual swap, the sequence is: initiate a controlled FCS shutdown from the HIS, confirm all field outputs are in their safe state, remove the failed or retired CPU module, insert the NFCP100-S00, restore power to the FCS node unit, and initiate an online FCS download from the EWS. In most CENTUM VP installations, this sequence can be completed within a two-to-four hour maintenance window, depending on the complexity of the FCS application and the number of I/O points under control. The existing Vnet/IP network infrastructure — including managed Ethernet switches, fiber optic links, and redundant network paths — remains fully operational throughout the swap, preserving communication continuity between the HIS, EWS, and any connected CENTUM VP domain controllers.
All NFCP100-S00 units supplied by SMARTNEXMSK are subject to pre-shipment functional testing, including power-on verification, Vnet/IP interface check, and memory integrity validation. This testing protocol reduces the risk of commissioning delays caused by latent hardware defects and supports the 12-month warranty coverage provided with every unit.
Retrofit Support FAQ
Q1: Is the NFCP100-S00 a direct drop-in replacement for the NFCP100 and NFCP100-S10?
A: The NFCP100-S00 is physically and functionally compatible with the standard CENTUM VP FCS CPU slot. It replaces the NFCP100 and NFCP100-S10 in most installations. Engineers should confirm the installed CENTUM VP software version and FCS application revision to ensure firmware compatibility before installation. No backplane or cabinet modification is required for a like-for-like CPU swap.
Q2: What commissioning steps are required after installing the NFCP100-S00?
A: After physical installation, the engineer must assign the correct Vnet/IP node parameters (domain number, station number, IP address) using the CENTUM VP System Generation function on the EWS, then perform an FCS download to transfer the application logic to the new CPU. I/O module addresses should be verified in CENTUM VP System View before initiating the download. A loop check on critical analog and digital I/O channels is recommended before returning the FCS to automatic control.
Q3: Can the NFCP100-S00 be used in a CENTUM CS 3000 to CENTUM VP migration project?
A: Yes, with engineering review. The NFCP100-S00 is a CENTUM VP native module and requires the FCS application to be converted to CENTUM VP format using YOKOGAWA’s migration tools before download. Existing CENTUM CS 3000 I/O modules may require replacement with CENTUM VP compatible equivalents depending on the specific I/O module types installed. SMARTNEXMSK can advise on compatible I/O module substitutions as part of the retrofit planning process.
Q4: What does the 12-month warranty cover, and what is the return process?
A: The 12-month warranty covers manufacturing defects and functional failure under normal operating conditions. It does not cover damage caused by incorrect installation, overvoltage, or environmental conditions outside the module’s rated specifications. To initiate a warranty claim, contact SMARTNEXMSK with the unit serial number, purchase date, and a description of the observed fault. Replacement units are dispatched upon receipt and inspection of the returned module.
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