YOKOGAWA FA-M3 F3XP02-0H High-Speed Counter Module

Technical Dossier

Product Details And Specifications

YOKOGAWA FA-M3 Series Technical Notes

The YOKOGAWA FA-M3 programmable controller platform is one of the most widely deployed DCS/PLC hybrid architectures in global heavy industry. Installed across petrochemical complexes, nuclear power auxiliary systems, oil refineries, and continuous-process manufacturing facilities, the FA-M3 system is recognized for its deterministic scan-cycle performance, high-density I/O backplane architecture, and long-term vendor support lifecycle. The F3XP02-0H is a high-speed counter module within this platform, designed for pulse-input applications requiring precise frequency measurement, position counting, and encoder interface in demanding industrial environments.

The Evolution of FA-M3 Architecture

The FA-M3 platform was introduced by YOKOGAWA in the mid-1990s as a modular, rack-based controller system bridging the gap between traditional DCS field controllers and standalone PLCs. Early generations used the F3SP series CPU modules with proprietary backplane bus communication at fixed scan rates. As industrial requirements evolved, YOKOGAWA expanded the I/O module catalog to include specialized function modules — including high-speed counter, motion control, and serial communication variants — while maintaining backward compatibility across backplane generations.

The F3XP-series counter modules represent the specialized pulse-processing branch of the FA-M3 I/O catalog. The F3XP02-0H specifically supports two-channel high-speed counting with differential line-driver input compatibility (RS-422 equivalent), making it suitable for incremental rotary encoder feedback in rotating machinery monitoring. Later revisions introduced extended count range (32-bit), improved noise immunity, and compatibility with the F3BU-series base units used in the current FA-M3V generation. The platform has entered a mature/sustaining lifecycle phase; YOKOGAWA continues to supply spare modules and provide firmware support, but new system designs are increasingly directed toward the STARDOM FCN/FCJ or ProSafe-RS platforms.

FA-M3 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked modules within the YOKOGAWA FA-M3 platform. Each entry reflects a distinct functional role within the system architecture.

High-Speed Counter & Pulse Input Modules

• F3XP02-0H: 2-ch high-speed counter, differential input, 32-bit, RS-422 compatible
• F3XP04-0H: 4-ch high-speed counter module, differential line-driver input
• F3XP01-0N: Single-channel high-speed counter, open-collector input type

Digital Input (DI) Modules

• F3XD32-3H: 32-ch DC digital input, 24 VDC, sink/source compatible
• F3XD16-3H: 16-ch DC digital input, 24 VDC, high-density format
• F3XD08-3H: 8-ch DC digital input, isolated, 24 VDC
• F3XD32-3N: 32-ch DC digital input, NPN sink type, 24 VDC

Digital Output (DO) Modules

• F3YD32-3H: 32-ch transistor output, source type, 24 VDC / 0.1 A per point
• F3YD16-3H: 16-ch transistor output, 24 VDC, high-current variant
• F3YR08-0N: 8-ch relay output module, 250 VAC / 2 A per contact

Analog Input (AI) Modules

• F3AD04-0N: 4-ch analog input, 4–20 mA / 0–10 V, 12-bit resolution
• F3AD08-0N: 8-ch analog input, 4–20 mA, 12-bit, high-density
• F3AD04-1N: 4-ch analog input with high-resolution 16-bit conversion

Analog Output (AO) Modules

• F3DA04-0N: 4-ch analog output, 4–20 mA, 12-bit resolution
• F3DA08-0N: 8-ch analog output, 4–20 mA / 0–10 V selectable

CPU Modules

• F3SP28-3N: Standard CPU, 32K-step program memory, Ethernet-ready
• F3SP38-6N: High-performance CPU, 120K-step, dual Ethernet ports
• F3SP59-4S: Safety CPU module, SIL2-certified, FA-M3 safety platform

Communication & Network Modules

• F3LE01-5T: 10/100BASE-TX Ethernet communication module
• F3LP02-0N: PROFIBUS-DP slave communication adapter
• F3LC11-1F: FL-net (OPCN-2) network module for factory LAN

Power Supply Modules

• F3PU20-0S: 24 VDC input power supply module, 20 W output
• F3PU10-0S: 100–240 VAC input power supply, 10 W, standard base unit