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c#comopcresponse-timeopc-da

OPCDA read time

I am polling an OPCDA server for data every second. I use the standard .NET DLL's from OPC Foundation to achieve this.

My service is located on the same server as the OPCDA server. However, my read times are often around 900-1000ms. Is this normal or something wrong in my code or server setup? I poll around 20 OPCDA tags. What is a "standard" response time of such an operation or is it impossible to say?

Solution

  • It doesn't sound normal, but it's impossible to say for certain without knowing what the source of the data is.