Rev. 01/2020
27
The Serial Text Interface
The following section describes the structure and commands of the text interface.
Structure
Every command that is sent to the LDP-QCW must be completed with a CR (Enter). It
consists of a command word followed by one ore more parameters. If the command was
successfully executed a “00” is sent, otherwise a “01”. If there is an error pending, the
response will be “10”, otherwise “11”. If the command requires an answer parameter, this
parameter is sent before the confirmation is given.
Example:
The user would like to read out the actual setpoint current:
User input:
gcur <Enter>
Output of the LDP-CW:
150.0<CR><LF>
00<CR><LF>
Example 2:
The user would like to set a new setpoint current:
User input:
scur 100.5<Enter>
Output of the LDP-CW:
100.5<CR><LF>
00<CR><LF>
Input is done in ASCII code and is case sensitive. Every terminal can be used that supports
this standard.
