CONVERSION DEVICE, PERIPHERAL DEVICE, AND PROGRAMMABLE CONTROLLER

摘要

In order to allow a waveform to be output as fast as possible and the output waveform to be debugged, a D/A conversion device (100) includes: a waveform data sequence storage area (142) that stores a waveform data sequence formed of a plurality of digital values; a waveform output control data storage area (144) into which operation mode specifying data and update request data are written; a digital value output section (133) that sequentially reads and outputs digital values while sequentially updating the data reading address in the waveform data sequence storage area (142) at predetermined output intervals when the operation mode specifying data indicates an automatic control mode, and that reads and outputs digital values while updating the data reading address at the timing when the update request data is written when the operation mode specifying data indicates a step execution mode or an output address changing mode; and a D/A conversion section (120) that converts the digital values output from the digital value output section (133) to analog values.