Everyone a great god, and I am opcserver client development, PLC is used to read and write, using the vb language (vs2012), when using asynchronous writes to a mistake, and statements as: MyGroup. AsyncWrite (1, tempserverhandles, Pumpstates ErrorNr, transactionID, cancelID),
Error message "" System. The Runtime. InteropServices. SafeArrayTypeMismatchException" type of untreated abnormalities in opc. Exe, in other information: the specified array is not belong to the type of need, "


Really don't know what reason!

Strives for the great god give directions, thank you very much,

CodePudding user response:

Array Pumpstates=new object [] {1};