Mitsubishi FX-16EX Digital Input Unit Module – MELSEC FX Series
When a production line loses its ability to read field signals — limit switches go undetected, conveyor positions become unknown, safety interlocks fail to respond — the entire automated process grinds to a halt. Downtime in discrete manufacturing can cost thousands of dollars per hour, and the root cause is often a failed or missing digital input expansion module. The Mitsubishi FX-16EX is the precision-engineered solution that keeps your MELSEC FX PLC system fully aware of every field event, every millisecond.
Within the MELSEC FX expansion family, the FX-16EX occupies a critical role as a dedicated 16-point digital input unit, purpose-built to extend the I/O capacity of FX-series base units without adding unnecessary complexity. Mitsubishi Electric’s MELSEC FX platform is one of the most widely deployed compact PLC families in global industrial automation, trusted across automotive assembly, food & beverage processing, material handling, and building automation in over 150 countries. The FX-16EX is a cornerstone expansion module within this ecosystem.
Technical Specifications
- Model Number: FX-16EX
- Manufacturer: Mitsubishi Electric
- Series: MELSEC FX
- Module Type: Digital Input Expansion Unit
- Number of Input Points: 16 points
- Input Type: DC digital input (sink/source compatible)
- Mounting: DIN rail / direct panel mount
- Connection: Expansion connector to FX base unit
- Weight: Approx. 1,180 g
- Compliance: CE, UL (refer to Mitsubishi Electric official datasheet for full ratings)
Note: All specifications are based on Mitsubishi Electric official documentation. Do not rely solely on this page for engineering design — always verify with the official FX-16EX hardware manual.
Key Features & Benefits
- 16 Dedicated Digital Inputs: Expand your FX base unit’s input capacity in a single compact module, reducing panel space and wiring complexity.
- Seamless FX Ecosystem Integration: Plug-and-play expansion via the standard FX bus connector — no additional power supply or configuration required in most applications.
- High Noise Immunity: Optocoupler-isolated inputs protect the PLC CPU from field-side electrical noise, ensuring reliable signal detection in harsh industrial environments.
- Compact DIN Rail Form Factor: Designed for space-constrained control panels, the FX-16EX maintains the slim profile characteristic of the MELSEC FX family.
- Long Service Life: Built to Mitsubishi Electric’s industrial-grade quality standards, ensuring years of reliable operation in 24/7 production environments.
- Wide Application Compatibility: Compatible with a broad range of FX-series base units, making it a versatile choice for both new installations and system expansions.
Industry & Equipment Applications
- Automotive Manufacturing: Body assembly lines, welding stations, conveyor position detection
- Food & Beverage Processing: Filling machine interlocks, packaging line sensors, temperature switch monitoring
- Material Handling & Logistics: Sorter systems, palletizer limit switches, AGV docking signals
- Textile & Printing Machinery: Web break detection, register mark sensing, tension control feedback
- Building Automation & HVAC: Door/window status, flow switch monitoring, alarm input aggregation
- Water Treatment & Utilities: Pump status feedback, valve position monitoring, level switch inputs
System Integration & Compatible Parts
The FX-16EX is designed to work within the MELSEC FX expansion bus architecture. Typical compatible base units and related modules include:
- FX1S, FX1N, FX2N, FX3G, FX3U series base units (verify compatibility with your specific base unit manual)
- FX-16EYR / FX-16EYT — complementary 16-point digital output expansion modules
- FX-8EX — 8-point digital input expansion for smaller I/O requirements
- FX-32EX — 32-point digital input expansion for high-density applications
- FX-8EYR / FX-8EYT — 8-point relay/transistor output modules
- FX2N-4AD / FX3U-4AD — analog input modules for mixed I/O systems
Contact our technical team at [email protected] for system compatibility verification before ordering.
Our Quality Assurance Process
At Konmask.com, every Mitsubishi FX-16EX module we supply undergoes a rigorous multi-stage quality verification process:
- Source Verification: We source exclusively from authorized distributors and verified supply chains to minimize counterfeit risk.
- Visual & Physical Inspection: Each unit is inspected for label authenticity, housing integrity, connector condition, and correct part markings.
- Functional Pre-check: Where applicable, modules are bench-tested prior to shipment.
- Secure Packaging: Anti-static packaging with moisture protection for safe international transit.
- Documentation: Shipment includes relevant product documentation and traceability records upon request.
How to Order
- Submit an Inquiry: Use the contact form on this page or email [email protected] with your required quantity and delivery destination.
- Receive a Quotation: Our team will respond within 1 business day with pricing, lead time, and shipping options.
- Confirm & Pay: Confirm your order via proforma invoice. We accept T/T bank transfer and other B2B payment methods.
- Shipment & Tracking: Your order is dispatched with full tracking information. Typical international lead time: 3–7 business days.
- After-Sales Support: Our technical team remains available post-delivery for integration questions.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation Components — PLC modules, DCS parts, servo drives, and HMI panels from leading global brands.
- ✅ Global B2B Supply — Serving engineering firms, system integrators, and OEMs across Asia, Europe, the Middle East, and the Americas.
- ✅ Fast Inquiry Response — Dedicated sales engineers respond within 24 hours.
- ✅ Competitive Pricing — Direct sourcing relationships enable cost-effective pricing for bulk and project orders.
- ✅ Reliable Logistics — Partnerships with DHL, FedEx, and UPS for secure, trackable international delivery.
- ✅ Technical Expertise — Our team includes experienced automation engineers who can advise on compatibility and system design.
Frequently Asked Questions
Q: Is the FX-16EX compatible with the FX3U base unit?
A: The FX-16EX is primarily designed for earlier FX series base units. Compatibility with FX3U depends on the specific configuration. We recommend consulting the Mitsubishi Electric FX3U hardware manual or contacting our technical team for confirmation.
Q: What is the difference between FX-16EX and FX-16EYR?
A: The FX-16EX is a 16-point digital input expansion module, while the FX-16EYR is a 16-point digital output expansion module with relay contacts. They are complementary modules within the same FX expansion family.
Q: Can I connect multiple FX-16EX modules to one base unit?
A: Yes, multiple expansion modules can be connected in series via the FX expansion bus, subject to the maximum I/O point limit of your specific base unit. Refer to your base unit’s hardware manual for the exact expansion limit.
Q: Do you supply new or refurbished units?
A: Konmask.com supplies both new-in-box and professionally refurbished units depending on availability. The condition is clearly stated in your quotation. Contact us to specify your preference.
Q: How long does international shipping take?
A: Standard international express delivery (DHL/FedEx) typically takes 3–7 business days depending on destination. We also offer economy shipping options for non-urgent orders.
Q: Can you provide a certificate of conformity or test report?
A: Yes, documentation including inspection reports and certificates of conformity can be provided upon request for qualifying orders.
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