1 Data can be received in ignition server tags data base from WESM server using our RMS module over secure PUBNUB services thru the APIs provided by WESM server
2 No you don’t need VPN for that.
3 no you don’t need to open the 8088 port for that
It is important to know what sort of data you meed to get from WESM server and at what scan rate ?What is the data structure? Can you explain the usecase scenario ?