Yokogawa F3SP38-6N FA-M3 Sequence CPU Module
The Yokogawa F3SP38-6N, also cataloged as the F3SP38 Sequence CPU Module, operates as a dedicated hardware component for high-speed control logic execution and real-time I/O management within FA-M3 PLC platforms. The module executes user program loops using stored-program repetitive operations, providing direct physical processing over field inputs and system communication backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F3SP38-6N / F3SP38 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.125 kg |
| Dimensions | 28.9 mm x 100.0 mm x 83.2 mm |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | Power supplied via FA-M3 backplane bus |
| Instruction Set | 32 basic, 312 application instructions |
| Control Mode | Stored program, repetitive operation |
| Mounting | FA-M3 base unit rack / DIN rail panel mount |
| Humidity Range | 10 to 90% RH (non-condensing) |
Channel-to-Channel Isolation and DCS Integration
The sequence CPU architecture isolates control execution tasks from field-level electrical interference, protecting processing logic across multi-channel I/O racks. When integrated alongside CENTUM VP DCS platforms, the processor handles high-density digital signal processing while preventing ground loop propagation across the internal backplane bus. Advanced noise suppression circuits ensure stable sequence execution even during high-frequency signal switching.
Frequently Asked Questions
Q: How does the F3SP38-6N display CPU activity and fault diagnostics?
A: Front panel LED indicators provide real-time visual status for power, CPU activity, program execution state, and system health errors.
Q: Can the F3SP38-6N module be hot-swapped while the FA-M3 base unit is powered?
A: No. Power to the FA-M3 base unit must be disconnected before removing or inserting the CPU module to prevent damage to the backplane communication pins.
Q: What instruction set capability does the module support for control logic?
A: The processor supports 32 basic instructions and 312 application instructions for complex sequencing and data processing routines.
Field Installation Guidelines
Mount the CPU module directly onto the designated slot of the FA-M3 base rack, ensuring the top and bottom retention mechanism latches securely into position. Connect the main ground terminal of the base rack to the cabinet protective earth bar using a short, low-impedance copper conductor. Maintain minimum clearance above and below the module rack to permit unimpeded air convection across the casing vents.
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