Chris Hird

OK Thanks

OK I found the reference and called using: parameterList[2] = new ProgramParameter(2, 50); Still nothing returned from the service program call.

From what I can see the following should work. parameterList[2] = new ProgramParameter(PASS_BY_REFERENCE, 50); That is according to the class definition? But I get an error stating 'PASS_BY_REFERENCE' is not defined?

Hi John, The C Program call works? It is the ServiceProgramCall that does not? I am calling both in the same manner except what is used by the Java Class? I will try to change the ServiceProgramCall to pass by reference (not sure how to do that at the moment as we are pretty new to using JTOpen) Chris..

replace files

ServiceProgramCall