XML DA Sample Servers
Two sample XML DA servers are installed on our web server and can be accessed from any OPC XML compliant client application at the following URLs:
If these URLs are visited with a browser then only a list of the supported methods is displayed.
An XML DA client is required to execute the server methods.
If you don't have an XML DA client then download the free Advosol XML DA test client as a OnceClick Smart Client.
A subscription refresh poll may block for an unintended long time if the clocks of the server computer and/or the client computer are not well adjusted. The XML-DA standard defines the Hold time as an absolute time that has to match the server clock. The Advosol XML-DA test client has a relative (to the client computer clock) Hold time specification in the user interface. To prevent blocks, a negative relative time, e.g. -1800 seconds should be specified in the Hold time box.