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Analog Output in Mitsubishi FX3U PLC



Mitsubishi FX3U PLC has the analog output of voltage (0-10V) or current (4-20mA). It features a 12-bit resolution (0 to 4095). That 12-bit resolution means that this digital value is converted by the analog output module into a physical voltage or current signal based on the configuration.

The PLC converts digital data with 12-bit resolution into physical voltage through a process called Digital to Analog Conversion. In short form, it is called DAC.

In this case, the Register contact AI/AO (M8011) is used as a trigger to activate the WR3A instruction.

WR3A uses to write the data to an analog output channel on an FX3U analog module. It is used to write analog values to an analog output channel connected to the FX3U PLC.

Reference : Instrumentationtools


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