Chapter 3 Analog Output Module AH04DA/AH08DA (3) If some parameters are altered, users can click SV PV . The new setting values are written into the CPU module and the I/O module. If users want to read the present values in the I/O module, they can click Refresh . The present values in the I/O module are sent to ISPSoft, and are monitored. 3.4.5 Importing/Exporting a Parameter File (1) After Export is clicked, the parameters will be saved as a CSV file (.csv). 3-25