HF2211 Serial Server Device User Manual
http://www.iotworkshop.com - 37 -
Figure 43. UART Modbus Function
3.11. Cli Command
Cli command is used for setting module configure parameters. Detailed command function and setting
is in next chapter, Cli command can be set through UART port or Telnet function (Appendix C), The
waiting time of below picture means use timeout time. If it exceed default 300s when no Cli command
is input, it will exit Cli command mode. When the HF2211 receive continuous UART data of “+++”, it
will enter into Cli command. ( The device working in transparent transmission mode by default) May
also set the device working in Cli command mode by default or disable this function .
Figure 44. Cli Command Setting
3.12. UART Flow Control and RS485 Function
HF2211 support software and hardware UART flow control. If use hardware follow control, must use
RS232 interface. If use software follow control, then It allowed the device output UART data after
receive single UART 0x11 data(Default: value can be modified). It will stop output UART data after
receive single UART 0x13 data(Default: value can be modified).
Figure 45. UART Flow Control
To Next Page
Loading...