Yokogawa Electric Corporation F3SP28-3S Sequence CPU Module

The Yokogawa F3SP28-3S Sequence CPU Module delivers high-speed sequencing and I/O management within FA-M3 PLC systems, enabling precise control of manufacturing lines, process control, and machine automation. It delivers about 1.5 MIPS of CPU performance, supports ~30K program steps, and houses roughly 8 MB of memory with a maximum of 4096 I/O points, all powered from 24 VDC and operable from -20°C to 60°C. Programming options include ladder logic, structured text, and mnemonic, with a stored-program, repetitive operation control method suitable for complex automation tasks. Commonly deployed in assembly lines, packaging machinery, and material handling systems where FA-M3 architecture is used for real-time sequencing and coordination; it serves maintenance teams, OEMs, and system integrators in replacements of legacy controllers or retrofit upgrades to sustain production uptime. Common replacements include Yokogawa F3SP38-6S, F3SP53-4S, and F3SP71-4S.