2)
Line order
Check and make sure the RS23S serial line connect firmly and well, and
make sure serial data line is connected correctly as below:
If the RS232 serial does not work by following above connection, please
try to change the order of TXD line and RXD line.
3)
Check baud rate
If need to check the baud rate at last time, firstly, set the baud rate to
115200 on your serial port test tool before power on . Then power on,
when the RS232 serial of product connects to serial port test tool the
software will read out the baud rate at once.
e.g: software show information "Baud rate: 9600" means 9600 is the
current baud rate.
4)
Set baud rate
For example: the current baud rate is 9600, but the baud rate of control
equipment is 19200, so the baud rate should be set as 9600.
At this time, in serial port tool, choose baud rate "9600", then input
command "set: 19200" in character format and send it out.
GND line
RXD line
TXD line
GRT
