I am trying to use system.opc.readValue and check the quality. Here is a snippet of sample code:
qualifiedValue = system.opc.readValue('IgnitionOPCUA', opcPath) if( qualifiedValue.quality.isGood() ): # quality is good, can continue print qualifiedValue.value else: # quality is bad, need to do something else.
In essence, I want to check to make sure that the opc read succeeded before I work with the data. However, when running the above code, I get the following error:
Am I using this attribute wrong? I was trying to use it the way the user manual specifies…