我改用Basic Serial Write and Read.vi(LabVIEW內的範例)去測試,Bytes就恆為需求的13 Bytes輸出,且查詢1073676294後,發現這是一個正常現象,就諸如"The number of bytes transferred is equal to the requested input count. More data might be available."的說明,因為我要求VISA Read回傳13 Bytes資料,VISA Read確實回傳,如果開啟Block Diagram Pannel的那個燈泡,執行程式做檢查,會發現範例Basic Serial Write and Read.vi,也是這樣的錯誤信息1073676294輸出