The text portion of each DCS message consists of a null terminated ASCII
text string composed of white-space separated tokens. The first token
in each message is the DCS command; all remaining tokens are the arguments
to the command. For example, the following is a command from a GUI client
to DCSS requesting that the motor table_vert_1 be moved to the
absolute scaled position of 10.0:
gtos_start_motor_move table_vert_1 10.0