Series Overview
The FA-M3 series is Yokogawa's "Range free Multi controllers". The basic modules covered in the document are the core hardware used to build the system, including the base module (carrying various functional modules), power module (power supply core), sequence CPU module (control core), and ROM storage module (program/data storage). The modules need to be matched according to specifications to jointly support high-speed sequence control, data processing, and network communication requirements in industrial scenarios.
Base Modules
1. Core functions and classification
As a module installation carrier, it provides slots for carrying CPU modules, I/O modules, power modules, etc. There is no distinction between master/slave units, and it is divided into 6 types of models according to the number of slots, suitable for system expansion needs of different scales.
2. Key technical specifications
Model, total number of slots, available I/O slots (single CPU), current consumption (5V DC), weight, applicable power module
F3BU04-0N、4、3、50mA、150g、F3PU10-0S、F3PU16-0S
F3BU06-0N、6、5、50mA、210g、F3PU10-0S、F3PU16-0S
F3BU05-0D, 5, 4, 50mA, 210g, F3PU20-0S, F3PU26-0S, etc
F3BU09-0N, 9, 8, 50mA, 340g, F3PU20-0S, F3PU26-0S, etc
F3BU13-0N, 13, 12, 50mA, 470g, F3PU20-0S, F3PU26-0S, etc
F3BU16-0N, 16, 15, 50mA, 550g, F3PU20-0S, F3PU26-0S, etc
3. Environmental and installation requirements
Environmental conditions: working temperature 0-55 ℃, storage temperature -20-75 ℃; Working humidity 10-90% RH (non condensing); Avoid corrosive/flammable gases and large amounts of dust.
Installation restriction: F3BU16-0N cannot be installed on DIN rails; The signal ground is connected to the base metal chassis; It is necessary to ensure that the total current consumption of all modules does not exceed the capacity of the supporting power module.
Size: Different models have different widths (such as F3BU04-0N with a width of 147mm and F3BU16-0N with a width of 527mm), with a uniform height of around 100mm and a depth of approximately 83.2mm (excluding protrusions).

Power Supply Modules
1. Core functions and classification
To provide stable power supply for the FA-M3 series base modules and the modules they are equipped with, each base needs to be equipped with one power module, which is divided into AC type (100-240V AC) and DC type (24V DC) according to the input voltage, and further subdivided into models according to the scale of the adapted base.
2. Key technical specifications
Model, input voltage, rated output (5V DC), power consumption, size (W × H × D, mm), weight compatible base module
F3PU10-0S, 100-240V AC, 2.0A 35VA, 28.9 × 100 × 83.2, 190g, F3BU04-0N, F3BU06-0N
F3PU20-0S, 100-240V AC, 4.3A, 85VA, 58 × 100 × 83.2, 320g, F3BU05-0D, F3BU09-0N, etc
F3PU30-0S, 100-240V AC, 6.0A, 100VA, 58 × 100 × 126.1, 380g, F3BU05-0D, F3BU09-0N, etc
F3PU16-0S, 24V DC, 2.0A, 15.4W, 28.9 × 100 × 83.2, 190g, F3BU04-0N, F3BU06-0N
F3PU26-0S, 24V DC, 4.3A, 33.1W, 58 × 100 × 83.2, 320g, F3BU05-0D, F3BU09-0N, etc
F3PU36-0S, 24V DC, 6.0A, 46.2W, 58 × 100 × 126.1, 410g, F3BU05-0D, F3BU09-0N, etc
3. Core performance characteristics
Voltage fluctuation adaptation: AC type supports 85-264V AC, DC type supports 15.6-31.2V DC.
Anti interference and protection: insulation resistance ≥ 5M Ω (500V DC), withstand voltage 1500V AC (1 minute); Anti pulse noise 1500Vp-p (1 μ s pulse width).
Fault alarm: Equipped with FAIL signal contact output (24V DC/0.3A), the contact status can be configured during normal operation (such as FAIL1 short circuit, FAIL2 disconnected).
Instantaneous power outage tolerance: AC standard mode 20ms, rapid detection mode 10ms; DC standard mode 20ms, rapid detection mode 2ms.

Sequence CPU Modules
1. Classification and core positioning
It is divided into basic type (F3SP22-0S, no network function) and network enhanced type (F3SP71-4S, F3SP76-7S, built-in Ethernet and other network functions), both of which are control cores of the FA-M3 series, responsible for executing ladder diagram programs, I/O control, and system diagnosis.
2. Comparison of key specifications of various models
Model Core Features Program Capacity Processing Speed (Basic Instructions) Maximum I/O Points Communication Interface Current Consumption (5V DC)
F3SP22-0S basic sequence control, no network function 30K steps * 0.045-0.18 μ s/instruction 4096 point programming toolchain interface (115Kbps) 450mA
F3SP71-4S has built-in network function, with a medium capacity of 60K steps and 0.00375 μ s/instruction 4096 points USB 2.0, 10/100BASE-TX 460mA
F3SP76-7S has built-in network function, large capacity of 260K steps 0.00375 μ s/instruction 8192 points (including remote) USB 2.0, 10/100BASE-TX 460mA
Note: F3SP22-0S requires WideField3 R4.05 and above versions to support 30K steps, while older versions only support 10K steps.
3. Core functional features
(1) General functions
Programming and Instruction: Supports object ladder diagrams and mnemonic languages; There are 37-40 basic instructions and 324-445 application instructions (including analog I/O, data operations, etc.).
I/O response and scanning: The sensor control function supports dual scanning (main scan+sub scan), with an I/O response of up to 200 μ s; The constant scanning time can be adjusted from 1ms to 190ms.
Diagnosis and maintenance: Self check memory/CPU/I/O errors, with 64 error log records; Support debugging functions such as forced set/reset and online editing; Circuit annotations and tag names can be stored to improve maintenance efficiency.
(2) Network enhanced exclusive features (F3SP71-4S/F3SP76-7S)
Network Protocol: Supports TCP/IP, UDP/IP socket, FTP client/server, Modbus/TCP slave, advanced link services, and remote programming.
Storage Expansion: Built in 4MB RAM disk, supports SD memory card (maximum 32GB, FAT16/32 format, compatible with PC reading); Support the "virtual directory" function, which can read and write device data or programs through FTP.
Security and Logging: User authentication and permission management to prevent accidental operations; Record all CPU operations in the operation log for easy traceability; Network filters restrict communication access.
Hardware interface: Front mounted MODE rotary switch (for non PC maintenance, such as program loading), SD card slot, MiniB USB port, and 10/100BASE-TX Ethernet port.
4. Indicator lights and fault diagnosis
All CPU modules distinguish fault levels through front LED:
RDY (green): Off indicates hardware failure (such as CPU/memory error, unable to run);
RUN (green): Constant light indicates that the program is running, flashing indicates that it is stopping;
ALM (yellow): Always on indicates minor errors (such as communication abnormalities, the program can continue to run);
ERR (red): Always on indicates a serious error (such as program error, I/O module failure, program cannot run).
The network enhanced version also has SD (storage card status), EXE (intelligent access status), and US1/US2 (user-defined) indicator lights.

ROM storage modules (ROM packs)
1. Core functions and positioning
Provide program and data storage for F3SP22-0S CPU module (network enhanced CPU uses SD card, incompatible with ROM module), which can store program control information, configuration data, timer/counter preset values, and annotation information.
2. Key specifications
Model compatible CPU, storage capacity (F3SP22-0S), data register storage, size (mm)
RK33-0N F3SP22-0S, 56K steps (actual program limit is 30K steps), 1024 words, 43 × 19 × 17.5
RK73-0N F3SP22-0S, 120K steps (actual program limit is 30K steps), 1024 words, 43 × 19 × 17.5
3. Usage restrictions
Only compatible with F3SP22-0S, not suitable for network CPUs such as F3SP66-4S and F3SP71-4S;
Data needs to be written using the FA-M3 programming tool (WideField3), which supports program solidification to prevent tampering.
Key points for module adaptation and installation
1. Adaptation relationship
Base - Power supply: 4/6 slot base (F3BU04/06) with F3PU10/16 series; 5/9/13/16 slot base (F3BU05/09/13/16) with F3PU20/26/30/36 series.
Base CPU: All bases can be equipped with F3SP22-0S/F3SP71-4S/F3SP76-7S, which can be used as an "additional CPU" when installed in slots 2-4.
CPU - Storage: F3SP22-0S with RK33/73 ROM module; F3SP71/76 with SD card (32GB max).
2. Installation and environmental requirements
Uniform size: All modules have a height of 100mm, with width differentiated by model (such as CPU/small power module 28.9mm, large power module 58mm), and a depth of approximately 83.2mm (excluding protrusions).
Environmental consistency: All modules work at a temperature of 0-55 ℃, store at a temperature of -20-75 ℃, and have a humidity of 10-90% RH (non condensing). They should be kept away from corrosive gases and dust.
Programming tool compatibility: Both require the use of FA-M3 programming tool WideField3 (SF630-MCW R2.01 and above versions) for configuration and debugging.

Email:wang@kongjiangauto.com