2 Introduction to Programming
40 Keysight Models 6811C, 6812C, and 6813C Programming Guide
Including common commands
You can combine common commands with system commands in the same
message. Treat the common command as a message unit by separating it with a
semicolon (the message unit separator). Common commands do not affect the
active header path; you may insert them anywhere in the message.
VOLTage:TRIGger 7.5;INITialize;*TRG
OUTPut OFF;*RCL 2;OUTPut ON
Using queries
Observe the following precautions with queries:
– Set up the proper number of variables for the returned data.
– Read back all the results of a query before sending another command to the
ac source. Otherwise a Query Interrupted error will occur and the unreturned
data will be lost.
The “Enhanced Tree Walking Implementation” given in Appendix A of the IEEE
488.2 Standard is not implemented in the ac source.