FX3U-4AD-ADP 4-Channel Analog Input Adapter for FX3U | Mitsubishi Electric

The Original New Mitsubishi Electric FX3U-4AD-ADP is a 4-channel analog input expansion adapter for the MELSEC-F FX3U series PLC system. It connects directly to the left side of the CPU module and provides four independent analog input channels, each configurable for voltage (0–10 V DC) or current (4–20 mA DC) signals. Designed for seamless integration into compact control panels, the adapter requires no dedicated programming instructions and automatically writes converted values to the CPU's special registers. With 12-bit resolution for voltage inputs and 11-bit for current inputs, it delivers precise analog signal acquisition for machine automation, process monitoring, and OEM equipment applications.

Core Engineering Highlights:
4 analog input channels (voltage or current, individually configurable) | 0–10 V DC voltage input (194 kΩ input resistance) | 4–20 mA DC current input (250 Ω input resistance) | 12-bit resolution (voltage) / 11-bit resolution (current) | 2.5 mV voltage resolution / 10 μA current resolution | ±0.5% accuracy at 25±5°C | 0 occupied I/O points | 17.6 mm width | DIN rail mounting

Key Features:

• Original New Mitsubishi Electric FX3U-4AD-ADP adapter

• 4 analog input channels, each independently configurable for voltage or current

• Voltage input range: 0–10 V DC (input resistance 194 kΩ)

• Current input range: 4–20 mA DC (input resistance 250 Ω)

• 12-bit binary resolution for voltage inputs (0–4000 counts, 2.5 mV/count)

• 11-bit binary resolution for current inputs (0–1600 counts, 10 μA/count)

• No dedicated instructions required – converted values written to special registers (SD6200–SD6239)

• Occupies 0 I/O points (does not consume CPU I/O allocation)

• Power supply: 5 V DC from CPU module / 24 V DC external (40 mA)

• Photocoupler isolation between analog inputs and PLC internal circuits

• DC/DC converter isolation for power supply (no channel-to-channel isolation)

• LED indicators for module status and channel activity

• DIN rail (35 mm) or panel mounting

• Compact 17.6 mm width for high-density installation

Applications:

• Analog signal acquisition from pressure, flow, level, and temperature sensors

• Machine automation and industrial data acquisition

• Packaging machinery and material handling systems

• OEM equipment requiring analog input expansion

• Process monitoring and control in compact control panels

• 4–20 mA transmitter signal acquisition

Technical Specifications:

System Compatibility:

• Compatible with Mitsubishi Electric MELSEC-F series PLCs including: FX3S, FX3G, FX3GE, FX3GC, FX3U, and FX3UC. Drive model and firmware compatibility should be verified before installation.

• Mounts on the left side of the CPU module via the expansion connector

• For FX3UC CPU modules, a conversion adapter (FX2NC-CNV-IF) may be required

• Up to 4 special adapters (analog input, analog output, temperature input) can be connected to a single CPU module

• Data is transferred without dedicated instructions — analog values are automatically written to special registers (SD6200–SD6239) corresponding to each channel

• Compatible with GX Works2 / GX Developer programming software

Related Products:

• FX3U-4DA-ADP – 4-channel analog output adapter (complementary)

• FX3U-4AD-PT-ADP – 4-channel Pt100 temperature input adapter

• FX3U-4AD-TC-ADP – 4-channel thermocouple input adapter

• FX3U-3A-ADP – 2 analog inputs + 1 analog output combination adapter

• FX3U-4AD – 4-channel analog input module (higher resolution, 16-bit)

• FX3U-4DA – 4-channel analog output module (higher resolution, 16-bit)

• FX2NC-CNV-IF – Conversion adapter for FX3UC CPU connection

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Mitsubishi Electric and MELSEC are trademarks of Mitsubishi Electric Corporation.