Specifies the flow control method used for both transmitting and receiving data. Valid values include: (0) Flow None, (1) Flow XON/XOFF, (2) Flow RTS/CTS, (3) Flow XON/XOFF and RTS/CTS, (4) Flow DTR/DSR, (5) Flow XON/XOFF and DTR/DSR. Certain values or combinations of values may not be supported by all serial ports and/or operating systems.

注释

下表列出了该属性的特性。

短名称 Flow Cntrl
数据类型 cu16.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
None 0
XON/XOFF 1
RTS/CTS 2
XON/XOFF & RTS/CTS 3
DTR/DSR 4
XON/XOFF & DTR/DSR 5