Specifies the current wire/transceiver mode. For RS485 hardware, this property is valid only with the RS485 serial driver developed by National Instruments. For RS232 hardware, the values RS232/DCE and RS232/Auto are valid only with RS232 serial drivers developed by National Instruments and documented to support this feature with the corresponding National Instruments hardware. When this feature is not supported, RS232/DTE is the only valid value.

注释

下表列出了该属性的特性。

短名称 Wire Mode
数据类型 ci16.png
权限 读取/写入
可用于运行引擎 是
可用于实时操作系统 是
Unknown -1
RS485/Wire4 0
RS485/Wire2-EchoDTR 1
RS485/Wire2-CtrlDTR 2
RS485/Wire2-Auto 3
RS232/DTE 128
RS232/DCE 129
RS232/Auto 130