Description

Yokogawa NFCP502-S05 Style S2 CPU Module

The Yokogawa NFCP502-S05 Style S2, also cataloged as the NFCP502 CPU Module, operates as a dedicated hardware component for regulatory and sequence control execution within the STARDOM FCN-500 Autonomous Controller system. It provides direct Ethernet-based network communication and deterministic task execution for control logic applications.

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa NFCP502-S05 Style S2
Origin	Japan
Weight	1.5 kg
Dimensions	Standard FCN-500 module footprint
OperatingTemp	0 degC to 55 degC
PowerConsumption	Typical 10 W (dependent on I/O load)
Processor	Atom E3815 1.46 GHz
MainMemory	256 MB ECC
StaticRAM	2 MB ECC, battery-backed
SecondaryMemory	1 GB on-board flash
ExternalMedia	SDHC 4 to 32 GB, Class 10
SerialPort	1 RS-232-C port (D-sub 9 pins, male)
CommunicationMethod	Full/Half duplex, asynchronous
BaudRate	0.3 to 115.2 kbps selectable
EthernetPorts	4 × RJ-45, 10/100/1000 Mbps
I/OInterface	SB bus (duplex)
ControlTasks	Max 16 concurrent, 16 priority levels
Humidity	5% to 95% RH, non-condensing
VibrationResistance	0.15 mm P-P (5–58 Hz), 1 G (58–150 Hz)
ShockResistance	15 G, 11 ms (power off, X/Y/Z)
CorrosiveGasResistance	ANSI/ISA S71.04 Class G2
Altitude	≤ 2000 m

Process Control Technical Features

The NFCP502-S05 Style S2 supports channel-to-channel isolation across Ethernet ports and I/O buses to prevent cross-interference. Each analog loop can interface with 4-20 mA HART signals, and FOUNDATION Fieldbus/Profibus PA connectivity is fully supported for distributed control system integration. Cold junction compensation (CJc) is applied to ensure temperature measurement consistency across all input channels.

Frequently Asked Questions

Q: What is the maximum hot-swap delay for dual-redundant CPUs?
A: Failover between redundant CPUs is ≤100 ms under normal operating conditions.

Q: Can the module operate with all Ethernet ports active simultaneously?
A: Yes. Ports 1 and 2 support redundant control networks; Ports 3 and 4 handle peripheral traffic independently.

Q: Are SD cards hot-swappable?
A: SDHC cards can be inserted or removed while the module is powered down; active insertion during runtime is not supported.

Field Installation Guidelines

• Mount the CPU module in the FCN-500 rack with proper alignment to the backplane connectors.
• Ensure all Ethernet ports are properly shielded and grounded. Use twisted pair cabling with shield termination at one end to minimize EMI.
• Maintain minimum spacing from heat-generating modules to preserve natural convection airflow.
• Avoid routing high-current or high-voltage conductors near control signal cables.
• Verify the orientation of the RS-232-C connector and secure locking screws to prevent mechanical stress.
• Observe ESD precautions when handling memory cards or exposed connectors.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems