Description
🔹 Product Overview
The Yokogawa NFCP100-S00 S3 is a CPU Module used in the STARDOM FCN-100 autonomous controller platform. It serves as the main processing unit for industrial control applications and supports sequence control, analog control, logic processing, communication, and distributed automation functions.
The NFCP100 CPU module is designed for Yokogawa Field Control Node systems where reliable operation and modular system architecture are required. The FCN platform supports standalone control as well as communication with other controllers and supervisory systems.
The CPU module includes ECC-protected memory, diagnostic functions, dual Ethernet interfaces, a serial communication port, battery-backed memory, and support for duplex CPU configurations. Yokogawa documentation identifies the NFCP100-S0□ family as using an MMX-Pentium 166 MHz processor with 128 MB main memory and 1 MB battery-backed static RAM.

🔹 Main Features
⚙️ Yokogawa STARDOM FCN-100 CPU module
⚙️ Model designation NFCP100-S00
⚙️ Style S3 hardware version
⚙️ MMX-Pentium 166 MHz processor
⚙️ 128 MB main memory with ECC
⚙️ 1 MB battery-backed static RAM with ECC
⚙️ Dual Ethernet communication ports
⚙️ RS-232-C serial communication port
⚙️ SB bus interface
⚙️ Watchdog timer and diagnostic functions
⚙️ Temperature monitoring
⚙️ CPU status indication LEDs
⚙️ LAN communication status LEDs
⚙️ Reset and shutdown switches
⚙️ Battery-backed memory retention
⚙️ Duplex CPU configuration support
⚙️ Designed for modular autonomous control systems
🔹 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Yokogawa |
| Model | NFCP100-S00 |
| Style | S3 |
| Product Name | CPU Module |
| Product Type | Autonomous Controller CPU |
| Series | STARDOM FCN-100 |
| Controller Type | Field Control Node CPU |
| Processor | MMX-Pentium 166 MHz |
| Main Memory | 128 MB with ECC |
| Static RAM | 1 MB with ECC |
| Memory Backup | Lithium Battery Backup |
| System Card | 1 Slot |
| Serial Port | RS-232-C × 1 |
| Serial Connector | D-sub 9-pin Male |
| Serial Mode | Full Duplex / Asynchronous |
| Serial Speed | 0.3 to 115.2 kbps |
| Ethernet Ports | 2 |
| Ethernet Speed | 10/100 Mbps |
| Ethernet Standards | 100BASE-TX / 10BASE-T |
| Ethernet Connector | RJ45 |
| I/O Interface | Duplex SB Bus |
| Diagnostic Functions | Watchdog Timer / Temperature Monitoring |
| Battery | 2700 mAh Lithium Battery |
| CPU Status LEDs | 3 |
| LAN Status LEDs | 2 |
| Operating Controls | Reset / Shutdown |
| Supply Voltage | 5 VDC ±5% |
| Maximum Current Consumption | 1800 mA |
| CPU Redundancy | Duplex Configuration Supported |
| Dimensions | Approx. 65.8 × 132 × 145.7 mm |
| Occupied Slots | 2 |
| Weight | Approx. 0.7 kg |
| Country of Origin | Japan |
| Product Condition | New Surplus / New Open Box |
The NFCP100-S0□ hardware specifications, including processor, memory, communication interfaces, 5 VDC supply requirement, dimensions, and weight, are documented for the FCN CPU module family.
🔹 CPU and Memory Function
The NFCP100-S00 operates as the central processing module of the FCN-100 controller.
The CPU executes configured control applications and manages communication with connected I/O modules and network devices.
Its ECC-protected main memory is designed to improve data integrity during industrial operation. The module also includes battery-backed static RAM for retaining specified information when system power is removed.
Typical control functions can include:
⚙️ Sequence control
⚙️ Logic control
⚙️ Analog process control
⚙️ Interlocking
⚙️ Equipment monitoring
⚙️ Data processing
⚙️ Distributed automation
⚙️ Communication with supervisory systems
🔹 Ethernet Communication
🌐 The NFCP100-S00 provides two Ethernet interfaces.
The Ethernet ports support 10BASE-T and 100BASE-TX communication through RJ45 modular connectors.
The dual network interface design supports industrial control-system communication and can be used as part of redundant or distributed network architectures, depending on the complete system configuration.
The FCN platform is designed for both standalone control and interconnected control applications.
🔹 Serial Communication
🔌 The module includes one RS-232-C serial communication port with a 9-pin D-sub male connector.
Supported communication speeds include:
⚙️ 0.3 kbps
⚙️ 1.2 kbps
⚙️ 2.4 kbps
⚙️ 4.8 kbps
⚙️ 9.6 kbps
⚙️ 14.4 kbps
⚙️ 19.2 kbps
⚙️ 28.8 kbps
⚙️ 38.4 kbps
⚙️ 57.6 kbps
⚙️ 115.2 kbps
The serial port cannot be used when CPU modules are configured for duplex operation.
🔹 Redundancy and Availability
The STARDOM FCN-100 platform supports duplex CPU configurations.
In a redundant arrangement, two compatible CPU modules can be configured to improve system availability. Yokogawa documentation also describes duplexing capability for other important FCN hardware components, including the power supply module, local SB bus, and control network.
When replacing a CPU in a redundant system, the CPU model and software revision should be checked carefully. Yokogawa migration guidance specifies matching CPU model and basic software revision between the control-side and standby-side CPUs.
🔹 Diagnostics and Status Monitoring
The NFCP100-S00 includes several monitoring functions for industrial system maintenance.
⚙️ CPU self-diagnostics
⚙️ Watchdog timer
⚙️ Temperature monitoring
⚙️ CPU status LEDs
⚙️ LAN communication LEDs
The front-panel indicators allow maintenance personnel to check basic CPU and communication status without immediately connecting engineering software.
🔹 Typical Applications
🏭 Process automation
🏭 Oil and gas facilities
🏭 Compressor control
🏭 Turbine auxiliary control
🏭 Power generation systems
🏭 Water and wastewater automation
🏭 Remote industrial control
🏭 Distributed PLC systems
🏭 Sequence control
🏭 Analog process control
🏭 Industrial utility systems
The NFCP100 platform has also been used in demanding control applications such as compressor surge prevention and turbine-related control systems.
🔹 Installation Notes
Before installing or replacing the NFCP100-S00 S3:
- Confirm the complete model number on the nameplate.
- Verify that the installed module is NFCP100-S00.
- Check the hardware Style identification.
- Record the existing controller configuration.
- Verify CPU redundancy status.
- Back up the application and controller configuration.
- Check Ethernet cable connections.
- Record serial communication settings if used.
- Follow the approved system shutdown procedure.
- Use appropriate ESD precautions.
- Install the module in the correct FCN base position.
- Verify CPU and network status after startup.
- Confirm communication with connected I/O modules.
- Test the control application before returning the system to service.
🔹 Maintenance Tips
🛠 Record the complete CPU model and Style before replacement.
🛠 Maintain a backup of the controller application.
🛠 Check CPU diagnostic LEDs regularly.
🛠 Inspect Ethernet connectors and communication cables.
🛠 Check the controller battery condition.
🛠 Monitor cabinet temperature.
🛠 Verify the SB bus connection.
🛠 Check both CPUs in a duplex configuration.
🛠 Confirm software compatibility before installing a replacement CPU.
🛠 Use ESD-safe handling procedures.
A communication or control problem may originate from the power supply, base module, SB bus, network, or I/O modules rather than the CPU itself.
🔹 Common Questions
❓ Q: What is the Yokogawa NFCP100-S00 S3?
A: It is a CPU Module used in Yokogawa STARDOM FCN-100 autonomous controller systems.
❓ Q: What processor does the NFCP100 use?
A: The NFCP100-S0□ CPU family uses an MMX-Pentium processor operating at 166 MHz.
❓ Q: How much main memory does it have?
A: The CPU module has 128 MB of ECC-protected main memory.
❓ Q: Does it support Ethernet communication?
A: Yes. It provides two Ethernet ports supporting 10BASE-T and 100BASE-TX communication.
❓ Q: Does it have serial communication?
A: Yes. It provides one RS-232-C serial communication port.
❓ Q: Can the CPU operate in a redundant configuration?
A: Yes. The FCN architecture supports duplex CPU configurations.
❓ Q: Can the serial port be used in duplex CPU operation?
A: No. The serial port cannot be used when CPU modules are configured in redundancy.
❓ Q: What power supply does the CPU require?
A: The NFCP100-S0□ CPU module requires a 5 VDC supply with a ±5% tolerance and has a maximum current consumption of 1800 mA.
❓ Q: Can any NFCP100 module directly replace an NFCP100-S00 S3?
A: Not automatically. The complete model, Style version, CPU configuration, application software, and redundancy arrangement should be checked before replacement.
❓ Q: What should be backed up before replacing the CPU?
A: The controller application, system configuration, communication settings, and relevant engineering data should be backed up before replacement.
🔹 Related Yokogawa Models
1️⃣ NFCP100-S00 S1 – STARDOM FCN CPU Module
2️⃣ NFCP100-S00 S2 – STARDOM FCN CPU Module
3️⃣ NFCP100-S00 S3 – STARDOM FCN CPU Module
4️⃣ NFCP501 – STARDOM FCN CPU Module
5️⃣ NFCP502 – STARDOM FCN CPU Module
6️⃣ NFPW444 – FCN Power Supply Module
7️⃣ NFAI143-H00 – Analog Input Module
8️⃣ NFAI835-H00 – Analog Input Module
9️⃣ NGP813-S10 – Frequency Input Module
🔟 NFAI841-S00 – Analog Input Module
🔹 Product Summary
The Yokogawa NFCP100-S00 S3 | STARDOM FCN-100 CPU Module is designed as the central processing unit for modular autonomous industrial control systems.
With an MMX-Pentium 166 MHz processor, ECC-protected memory, battery-backed RAM, dual Ethernet ports, RS-232-C communication, diagnostic monitoring, and duplex CPU capability, the NFCP100 platform is suitable for industrial control applications requiring reliable processing and communication.
Before replacement, verify the complete model number, Style version, system configuration, software compatibility, redundancy arrangement, and existing controller application.
