You could get a free copy of the DigiVis 500 program , I want to design a scada system cpu pm582
There are no license-free copies of DigiVis 500.
In 100-day test period is known as the "Demo Mode" mode, the DigiVis 500 software has no restrictions and you have complete access to the available functions. Once your product is registered only the functions corresponding to the license acquired will remain accessible.
So you can get start with designing your automation system. Later you can purchase the license.