lawview 對 PLC UDP 連線

您好 各位大大


小弟在做對 三菱PLC 用UDP通訊時發生下面問題:
Error 1 occurred at UDP Write in TESTPLC_RW.vi

Possible reason(s):

LabVIEW:  An input parameter is invalid. For example if the input is a path, the path might contain a character not allowed by the OS such as ? or @.
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NI-488:  Command requires GPIB Controller to be Controller-In-Charge.

下面是小弟的PLC設定與程式部分
程式碼部分:
 

這邊與PLC通訊給的值
IP:192.168.1.254
PLC port:1500(5376)
time out:2000

還請各位大大幫忙教導一下