CPM1A-DA021 is a digital-to-analog converter module for the OMRON CPM1A series programmable logic controllers (PLCs). It used to convert digital signals from the PLC into analog output signals. The CPM1A-DA021 module has 2 analog output channels, each capable of generating a 0-10V or 4-20mA analog output signal. It provides precise analog control in applications where analog signals are required, such as controlling analog actuators or regulating analog process variables.