FX2N-4DA is an analog output module in Mitsubishi's FX2N series, providing four channels of digital-to-analog conversion. This block allows the programmable controller (PLC) to output precise analog signals for controlling processes that require variable output levels.

Key Features

    Output Channels: 4 analog outputs capable of delivering either voltage (-10V to +10V) or current (0 to 20mA or 4 to 20mA), independently configurable for each channel.
    Resolution: 12-bit resolution, with increments of 5mV for voltage and 20μA for current.
    Power Consumption: Draws 30mA from the 5V DC rail and requires an additional 24V DC supply.
    Buffer Memory: Uses 32 buffer memory locations for communication and data storage, facilitating setup of parameters, mode settings, and output adjustments.

Connection and Compatibility

    Supported Controllers: Can be directly connected to FX0N, FX1N, FX2N, FX2NC, and FX3U series PLCs.
    I/O Allocation: Occupies 8 I/O points, which can be sourced from either input or output allocations on the PLC.

Programming and Configuration

    Buffer Memory Allocation: Specific buffer memories (BFMs) are designated for different functions:
        BFM #0: Controls output mode for each channel (voltage or current).
        BFM #1 - #4: Stores analog output data for channels 1 through 4.
        BFM #5: Holds output data in STOP mode.
    Adjustable Offset and Gain: Channels can be calibrated using BFMs to set offset and gain values, providing flexibility for specific process requirements.

Operational Notes

    Conversion Rate: Processes data at 2.1 ms per 4 channels, ensuring rapid response in applications.
    Isolation: Includes photo-coupler isolation for digital and analog circuits, enhancing signal integrity and reducing interference from other circuits.

Installation and Usage Tips

    Wiring Precautions: Use shielded twisted-pair cables for analog outputs to prevent noise, and ensure grounding for stable performance.
    Calibration: Periodic calibration is advised to maintain accuracy. Offset and gain adjustments can be programmed through the PLC.
    Environmental Conditions: Keep within recommended temperature and humidity levels, as fluctuations can impact signal stability.

>> Mitsubishi FX2N-4DA User manual (pdf)

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