Campbell Scientific CS135 Lidar Ceilometer User Manual

Page 28

CS135 Ceilometer

The following settings are used:

RS232/422/485 interface (default)

USB

service

port

RS232 Full Duplex

Baud: rate 115200

Baud rate: 115200

Data bits: 8

Data

bits:

Parity:

none

Parity:

none

Stop

bits:

Stop bits: 1

Flow control: none

Ensure that if the baud rate of the unit has been adjusted and then the
corresponding bits per second value are entered in the port settings of the terminal
emulator. The CS135 should now be ready to accept commands.

Note: commands will always output all parameters on a new line after a CR LF &
then the CS135 prompt ‘CS135>’. If you only want to see parameter values
without changing them then enter the command without parameters. If a particular
parameter did not need changing then the parameter can be replaced with a
comma (,). Back space will abort the command.

5.1.3 Terminal mode command examples

The following text shows an example of setting up the CS135 serial port. This
example would set the serial port to RS232 full duplex at 115200bps, 8 data bits,
no parity and if it was in RS485 mode then a 100mS turn around delay.

You could also type the following to obtain the same results as the RS485 turn
around delay is not needed:

If all you wish to do is change the data baud rate and nothing else you can replace
the first number, the mode parameter, with a ‘,’ as shown below.

Alternatively if you just wished to change the parity to 8-bits no parity then type
the following:

You do not need to replace the remaining parameters with ‘,’ you only need to
replace the ones up to the parameter you wish to edit.

Remember to leave a space character between the command and the
parameters as shown in the examples.

NOTE

serial 0 10 0 100

serial 0 10 0

serial , 10

serial , , 0