Can I get data from SOAP webservice?

NO

SOAP protocol is currently not supported in Elements Connect. 

Depending on your need, you may be able to get data from the URL datasource but this is not SOAP per se and may be inappropriate. Please note that any additional authentication mechanisms which may be required by SOAP (like Windows NTP Authentication) is not supported (we only support oauth2 and http basic authentication).

We do not plan to implement SOAP support in any foreseeable future.