MICREX-SX Series SPH Controllers with integrated control, monitoring, and operation features

One Platform, Positioned Across Performance Tiers

Fuji Electric's own product map places each CPU by program memory size and role:

• SPH2200 – 48 Kstep, monitoring/sequence control (entry point).
• SPH3300 – 48–256 Kstep, monitoring/motion control.
• SPH5000M / SPH5000EC – 96–512 Kstep, ultra high-speed motion control.
• SPH5000H – 512 Kstep, highly reliable duplex system.
• SPH200 (legacy reference point) – 8–16 Kstep, sequence control only.

This lets a systems integrator pick the CPU that matches the job without over- or under-specifying — the same programming environment and much of the same instruction set carries across every tier.

Integration of Control, Information, and Communication

• Upgraded data processing, mass memory storage, and built-in Ethernet let SPH controllers monitor production systems and devices and record operation history and errors, in addition to standard FA control — extending the controller's role into IT-based remote monitoring, maintenance support, and preventive maintenance.
• CPU and power supply redundancy are available for applications with higher reliability requirements.

Open Network Oriented — No Single-Vendor Lock-In

• Hardware and software conform to the IEC 61131 international standard for programmable controllers.
• Compatible with Ethernet, EtherCAT, BACnet MS/TP (Japan domestic market only), FL-net, DeviceNet, and PROFIBUS-DP — meaning SPH controllers connect into building management, factory automation, and motion networks without needing a proprietary gateway in most cases.
• Also complies with maritime classification societies NK (Japan's Nippon Kaiji Kyokai) and LR (UK's Lloyd's Register), relevant for marine and offshore control applications.

SX Bus and E-SX Bus, Scaling From Small Machines to Large Facilities

• SX bus: 512-word direct-connection I/O capacity, 128 words/ms refresh performance, 25 Mbps transmission, up to 254 connected modules across 25 m (up to 25.6 km with optical converters).
• E-SX bus (SPH5000M/H): 4,096-word direct I/O capacity (8× the SX bus), 2,048 words/ms refresh (16× the SX bus), 100 Mbps transmission over 100 m station-to-station / 1 km total (4× the SX bus) — built for larger, more complex facilities, and includes loopback and signal bypass functions so communication continues even if a wire breaks or a device loses power.
• Free topology via T-branches allows distributed placement of HMIs, inverters, and servo systems without forcing a rigid daisy-chain layout.

Ultra-High-Speed, Tact-Synchronized I/O

• Program scan as fast as 1 ms, with basic instruction (LD) execution as fast as 4 ns on SPH5000M/EC.
• Tact cycle configurable as short as 0.25 ms (SPH5000M), 0.5 ms (SPH300), or 1 ms (SPH2000/SPH2200/SPH3300) — matched to how tightly the application needs I/O refresh timing.
• E-SX bus synchronizes data output timing both within a single bus and between multiple E-SX bus channels, keeping multiple inverter/servo channels in step to within ±1 μs.

Multi-CPU Architecture for Load Distribution

• SPH2200/SPH3300/SPH5000M/SPH5000EC support multi-CPU configurations — up to 3 CPUs for SPH5000M/EC, up to 8 CPUs for SPH2200/SPH3300 — distributing the processing load across CPUs for large or complex application programs while I/O refresh control continues automatically.

Built-In Motion System (No Separate Motion Module Required)

• SPH5000EC: large-scale, high-speed/high-accuracy motion — 32-axis control at 1 ms on a single CPU, or 96-axis control at 1 ms across a 3-CPU system; SX bus and EtherCAT compatible; up to 64 connected axes on a single EtherCAT system with a maximum of 238 slaves.
• SPH3300 / SPH2200: small- and medium-scale (economical) motion — 32-axis control at 2 ms, SX bus compatible.
• Minimum command communication cycle: 0.5 ms on EtherCAT, 1 ms on SX bus.
• "Two in One" design runs sequence control and motion control on a single CPU, avoiding the cost of a dedicated motion module and letting both be programmed in one tool (SX-Programmer Expert / D300win).
• Ten built-in motion-specific function blocks (FBs) — covering positioning, interpolation, and synchronous operation — are reusable across projects, which Fuji Electric's own development-hour comparisons show meaningfully cuts combination testing, debugging, and software/system design time versus a from-scratch build.
• Servo amplifiers connect directly over Ethernet cable and SX bus cable (modular connector), reducing point-to-point I/O wiring, and can be monitored and configured through the servo loader from the same PC connection used for the CPU.

Highly Reliable Duplex System (SPH5000H)

• Supports redundant CPU, duplexed control network, duplexed I/O network, and loop network for control systems where continuous operation is critical (e.g., infrastructure equipment).
• The active and backup systems store the same program, keeping data values equalized; on a CPU fault, control may briefly pause for fault detection and changeover, but the system avoids a full shutdown.
• 1:1 warm-standby redundancy is also available on SPH300/SPH2000, with configurations of up to 4 CPU sets.

Logging, Waveform, and SX Monitor Functions

• Collects and saves CPU module data at any desired timing without affecting scan time, storing to a user ROM card.
• Waveform monitor displays the collected data on a time axis; SX monitor plays back the actual user program logic around a trigger event (pre-trigger, at-trigger, post-trigger), making it possible to see exactly what the program was doing when a fault occurred — something that was previously very difficult to reconstruct after the fact.

Migration Path From Legacy Fuji Controllers

• A built-in model transition function migrates an existing PLC project to SPH2200/SPH3300 in four steps (select Model Transition → confirm project name → select resources to migrate → execute), without manually rebuilding system definitions or resource settings.
• SPH2200 and SPH3300 are Fuji Electric's officially recommended replacement models for the SPH3000(D), SPH2000, and SPH300 series.

Two Programming Tool Philosophies

• Development-efficiency-oriented (Expert/D300win): full support for IL, LD, FBD, ST, and SFC representations; structured, POU/worksheet-based design for multi-engineer collaboration; built-in simulation without needing the physical unit; strong documentation tools (drawing numbers, dates, company logos, comments).
• Operability-oriented tools: full keyboard operation for on-site maintenance staff, resume function that returns to the last-edited/monitored position on startup, device editor with collation function, and reuse of program/comment resources from Fuji's older MICREX-F and FLEX-PC series.

Applications

• Small/medium machine builders – SPH2200/SPH3300 combine sequence and motion on one economical CPU for packaging, printing, and converting equipment.
• Large, high-speed/high-precision motion systems – SPH5000EC/M for applications needing up to 96-axis synchronized control or EtherCAT-based wiring-saving servo networks.
• Infrastructure and critical-continuity plants – SPH5000H's duplex CPU, network, and I/O redundancy for facilities where downtime isn't an option.
• Plant-wide monitoring and preventive maintenance – built-in Ethernet, data logging, and history recording extend SPH beyond FA control into IT-facing monitoring and maintenance support.
• Retrofits of SPH3000(D)/SPH2000/SPH300 systems – model transition tooling and documented replacement mappings support a straight upgrade path.