ASCII String ParametersString parameters can contain virtually any set of ASCII characters. A string must begin and end withmatching quotes; either with a single quote or a double quote. You can include the quote delimiter aspart of the string by typing it twice without any characters in between. The following command uses astring parameter:CALibrate:DATE "12/12/12"Arbitrary Block Program or Response DataDefinite-length block data allows any type of device-dependent data to be programmed orreturned as a series of 8-bit binary data bytes. This is particularly useful for transferring largequantities of data or 8-bit extended ASCII codes.Device ClearDevice Clear is an IEEE-488 low-level bus message that you can use to return the instrument to aresponsive state. Different programming languages and IEEE-488 interface cards provide access tothis capability through their own unique commands. The status registers, the error queue, and allconfiguration states are left unchanged when a Device Clear message is received.Device Clear performs the following actions:l If a measurement is in progress, it is aborted.l The instrument returns to the trigger idle state.l The instrument's input and output buffers are cleared.l The instrument is prepared to accept a new command string.The ABORt command is the recommended method to terminate an instrumentoperation.Typical Command Processing TimesThe following table documents some typical, average command processing times for several types ofsetting commands and response queries. This can help you determine the impact of some commonlyused SCPI commands on total test time. All times are in milliseconds.Setting commands like VOLT only account for the IO latency + command processing, not the timefor the action to complete (like the output voltage to finish changing or output state completing turnon).Query command times apply from when the command was sent to the instrument until the response isreceived.Keysight RP7900 Series Operating and Service Guide 1735 SCPI Programming Reference
