No, there's no free trial license of PI server that can be downloaded from OSIsoft site.
You will have to contact OSIsoft Account Manager for buying PI server license; if you're not sure who's the account manager, please call 86 10 5810 7288 for getting their contact.
But I see this link https://registrations.osisoft.com/s/ . It shows a free sign-up for PI devclub,Is PI devclub contains PI server?
You can reach the account manager for more details about PI Developer Club and double-check with them if PI server would be included in "PI Developer Club".
Thanks for your reponse.
I solve it.
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