F3SP28-3S Yokogawa FA-M3 Series Datasheet & Technical Manual

Yokogawa F3SP28-3S FA-M3 Sequence CPU Module

Yokogawa F3SP28-3S FA-M3 Sequence CPU Module

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Yokogawa F3SP28-3S Sequence CPU Module The Yokogawa F3SP28-3S, also cataloged as the F3SP28 Sequence CPU Module, serves as the primary...

رمز المنتج: F3SP28-3S

Manufacturer: Yokogawa
Product No.: F3SP28-3S
Product Type: CPU Processors
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Yokogawa F3SP28-3S Sequence CPU Module

The Yokogawa F3SP28-3S, also cataloged as the F3SP28 Sequence CPU Module, serves as the primary F3SP28 Sequence CPU Module utilized to execute sequence and logic control programs across FA-M3 PLC series platforms. The unit processes digital and analog control instructions utilizing a repetitive operation method based on a stored program system. It manages high-density logic execution and system task coordination by directly interfacing with peripheral input/output architectures mounted onto the shared system backplane.

Hardware Specifications

Parameter	Specification
Model	F3SP28-3S
Brand	Yokogawa
Platform	FA-M3 PLC Series
Origin	Japan
Weight	300 g
Dimensions	110 x 50 x 30 mm
Operating Temp	-20 to +60 deg C
Power Consumption	Powered via backplane (24 V DC system voltage)
CPU Processing Speed	1.5 MIPS
Memory Capacity	8 MB
I/O Refresh Method	Refresh method / direct I/O instruction execution
Number of I/O Points	Up to 2048 points supported (4096 points maximum hardware addressing limit)
Program Block Capacity	1024 program blocks maximum
Programming Languages	Structured ladder language, mnemonic language, structured text, function block diagram
Cooling System	Natural convection
Operating Humidity	5 to 95% RH (non-condensing)

Distributed System Architecture and Backplane Communication

The processing unit relies on dedicated backplane bus communication velocity allocations to synchronize data structures across attached remote and local modules without processing bottlenecks. Internal registry configuration scales efficiently to handle broad I/O density scaling demands, allowing the processor to maintain consistent cycle times even under peak instruction loads. The hardware design preserves firmware flash compatibility parameters across the FA-M3 lifecycle, enabling deterministic field network updates while maintaining logic memory execution states across power interruption cycles.

Frequently Asked Questions

Q: Does this sequence CPU support direct online editing of the active program logic blocks?

A: Online program modifications are constrained by the memory allocation structure of the FA-M3 platform; the memory registers must be written using the direct I/O instruction set or through compatible programming interfaces that prevent execution timing drops.

Q: How does the unit maintain its memory mapping during a complete system power interruption?

A: The stored program logic and system configuration data are retained via the internal non-volatile memory structure, while real-time registers utilize backplane hardware backup paths to protect critical process states.

Q: Can the CPU module be hot-swapped while the base slot backplane is actively powered?

A: No. Removing or inserting the CPU module while the backplane power supply is live can induce voltage transients that damage the internal logic bus pins and corrupt active register tables.

Field Installation Guidelines

Base Unit Slot Insertion: Align the module top and bottom guides carefully with the target base unit slot before applying horizontal force to prevent bending the high-density backplane connector pins.
Grounding Matrix Continuity: Ensure the FA-M3 base unit chassis is bonded directly to a low-impedance industrial instrument ground to suppress high-frequency noise from interfering with the internal CPU bus line.
Convection Clearance Allocation: Maintain a minimum clear boundary space of 50 mm above and below the module housing to facilitate natural convection cooling currents within the cabinet enclosure.
Firmware Verification Routine: Confirm that the firmware compatibility revisions match the existing peripheral I/O modules installed on the rack before executing system startup logic routines.

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