Use the search and browse feature to view Kepware's repository of more than 500 Knowledge Base articles. Narrow your results or type your query into the search field below.

Search Solutions Results By: View All Solutions

Kepware Knowledge Base: Solution


Slow OPC XML-DA Client Driver Communications


Last Update: 11/7/2018

With OPC XML-DA, a typical group of tag reads can take from 1 to 3 seconds. The maximum number of tags in a single request is 512. So, if the OPC XML-DA Client driver is configured to read few thousand tags, it could take several seconds to a minute to complete a single poll cycle.

Related Products
OPC XML-DA Client