VISA read和write函数VISA: (Hex 0xBFFF0015) 完成操作前超时已过期

参考:

1.Why Do I Receive Timeout Error -1073807339 on VISA Read or Write? - National Instruments http://digital.ni.com/public.nsf/allkb/874B379E24C0A0D686256FCF007A6EA0?OpenDocument

2.http://forums.ni.com/t5/NI-LabVIEW-CVI-数据采集等产品讨论区/利用visa与USB接口程控电源通信读电压时出现超时错误/td-p/1056680