Model 2701 User’s Manual Common Commands 12-7
G *TRG — trigger Send bus trigger to Model 2701
Use the *TRG command to issue a trigger to Model 2701. Use the *TRG command as an
event to control operation. Model 2701 reacts to this trigger if BUS is the programmed
arm control source. The control source is programmed from the TRIGger subsystem.
NOTE Details on triggering are provided in Section 8.
Programming example — The following command sequence configures Model 2701 to
be controlled by bus triggers. The last line, which sends a bus trigger, triggers one
measurement. Each subsequent bus trigger will also trigger a single measurement.
NOTE The following example can be run from the KE2700 Instrument Driver using the
example named “BusTrg” in Table G-1 of Appendix G.
*RST ' Restore RST defaults.
TRIG:SOUR BUS ' Select BUS control source.
TRIG:COUN INF ' Set trigger layer count to infinity.
INIT ' Take 2701 out of idle.
*TRG ' Trigger one measurement.
H *TST? — self-test query Run self test and read result
Use this query command to perform a checksum test on ROM. The command places the
coded result (0 or 1) in the output queue. The coded result is sent from the output queue to
the computer.
A returned value of zero (0) indicates that the test passed and a value of one (1) indicates
that the test failed.
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