CHOICE parameter often are implemented by the device's remote control protocol as numeric constants (0 for BPSK, 1 for QPSK) or they are abbreviated in a way which is hard to remember. The user interface of the software shall in contrast display self-explaining names for such settings.
The driver language lets you define translation tables which do such conversions while the driver performs a PRINT, INPUT, READ or WRITE statement. As the driver knows, in which direction a table translation must be done, you can use the same table to translate values when they are written to and when they are read from the device.
The TABLE statement described in following chapter is used to define translation tables.