Mitsubishi FX0N-16EX PLC Digital Input Expansion Module | Replacement, Equivalent & Selection Guide
The Mitsubishi FX0N-16EX is a 16-point DC digital input expansion module designed for the Mitsubishi MELSEC FX0N series PLC system. It extends the I/O capacity of compact FX-series controllers, making it a critical component in industrial automation, machine control, and process monitoring applications. This page provides full technical specifications, compatible replacement models, and a structured selection guide to help engineers and procurement teams make informed sourcing decisions.
Technical Specifications
- Model: FX0N-16EX
- Manufacturer: Mitsubishi Electric (MELSEC)
- Series: FX0N / FX Series
- Module Type: Digital Input Expansion Unit
- Number of Input Points: 16 points
- Input Type: DC sink/source (24 VDC)
- Input Voltage: 24 VDC (±10%)
- Input Current: Approx. 7 mA per point
- Isolation: Photocoupler isolation
- Response Time: 10 ms (default)
- Connection Method: Terminal block
- Power Consumption: 5 VDC, 90 mA (from main unit bus)
- Weight: Approx. 760 g (with packaging)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 75°C
- Humidity: 35% to 85% RH (non-condensing)
- Standards: CE, UL compliant
Compatible Replacement & Equivalent Models
When the FX0N-16EX is discontinued or unavailable, the following models offer functional equivalence or direct replacement capability. Always verify electrical and mechanical compatibility before substitution.
- FX1N-16EX — Direct functional equivalent for FX1N series; same 16-point DC input, compatible bus connector
- FX2N-16EX — Suitable for FX2N/FX2NC systems; expanded I/O addressing, same input voltage
- FX3U-16EX — Higher-performance replacement for FX3U/FX3UC systems; supports high-speed input
- FX0N-8EX — Partial replacement (8-point); use two units to match 16-point capacity
- FX5-16EX/ES — Next-generation iQ-F series equivalent; requires FX5U/FX5UC main unit
- Third-party equivalents: Confirm I/O point count, input voltage, bus protocol, and connector pinout before ordering
Why Choose the Original FX0N-16EX
- Guaranteed compatibility with FX0N series main units without firmware or wiring modification
- Factory-tested photocoupler isolation for reliable noise immunity in industrial environments
- Mitsubishi Electric quality assurance with full traceability
- Seamless integration with GX Developer / GX Works2 programming software
- Proven field reliability in millions of installed FX-series systems worldwide
Typical Applications
- Machine tool control and CNC auxiliary I/O expansion
- Conveyor and material handling systems
- Packaging and labeling machinery
- HVAC and building automation control panels
- Water treatment and pump station monitoring
- Textile and printing equipment
- Food and beverage processing lines
System Compatibility
The FX0N-16EX is compatible with the following Mitsubishi MELSEC PLC main units:
- FX0N-24MR / FX0N-40MR / FX0N-60MR
- FX0N-24MT / FX0N-40MT / FX0N-60MT
- Compatible with FX1N series with appropriate adapter (verify bus connector)
Note: Not directly compatible with FX3U, FX5U, or iQ-R series without an interface adapter.
Selection Guide
Use the following criteria to select the correct expansion module for your application:
- Step 1 — Identify your main unit: Confirm the PLC model (FX0N, FX1N, FX2N, FX3U, or FX5U)
- Step 2 — Count required I/O points: FX0N-16EX adds 16 input points; combine with FX0N-16EYR/T for mixed I/O
- Step 3 — Check power budget: Each FX0N-16EX draws 90 mA from the 5 VDC bus; verify main unit power supply capacity
- Step 4 — Verify input voltage: Confirm field devices output 24 VDC signals compatible with this module
- Step 5 — Check expansion limit: FX0N series supports up to 128 total I/O points across all expansion modules
Quality Assurance & Sourcing
At Konmask.com, all Mitsubishi FX0N-16EX units are sourced through verified industrial supply channels. Each unit undergoes:
- Visual and label authenticity inspection
- Functional power-on verification
- Packaging integrity check
- Serial number traceability documentation
We supply both new original and tested surplus stock. Condition is clearly stated on each listing. Bulk orders and long-term supply agreements are available — contact us for pricing.
How to Order
- Online: Add to cart directly on this page
- Email: support@konmask.com with your PO or BOM
- Phone/WhatsApp: +0086 19859288691
- Lead Time: In-stock items ship within 1–3 business days; sourced items 5–15 business days
- Shipping: Worldwide DHL / FedEx / EMS available
- Payment: T/T, PayPal, credit card accepted
Replacement & Compatibility FAQ
Q: Can I use FX1N-16EX to replace FX0N-16EX?
A: In most cases yes — the FX1N-16EX shares the same bus connector and input specifications. Verify your main unit firmware version and total I/O count.
Q: Is the FX0N-16EX still in production?
A: Mitsubishi Electric has transitioned the FX0N series to end-of-life status. Replacement stock and surplus units remain available through authorized distributors like Konmask.com.
Q: What is the difference between FX0N-16EX and FX0N-16EYR?
A: The FX0N-16EX is a pure input module (16 DI). The FX0N-16EYR is a pure output module (16 DO relay). They are not interchangeable.
Q: Can I mix FX0N-16EX with FX2N expansion modules?
A: No. FX0N and FX2N expansion buses are not cross-compatible. Use only FX0N-series expansion modules with FX0N main units.
Q: Do you provide a warranty?
A: Yes — new original units carry Mitsubishi’s standard warranty. Surplus/tested units carry a 90-day Konmask functional warranty.
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Contact: support@konmask.com | +0086 19859288691
