American Magnetics 420 Power Supply Programmer - Manual (Page 96)

78 Rev. 7
Remote Interface Reference
IEEE-488 Configuration
4.4.2 Device Clear
The Device Clear is a low-level IEEE-488 bus message which you can use
to return the instrument to a responsive state if communication appears to
stall. The status registers and the error queue are left unchanged when a
Device Clear message is received. Device Clear performs the following
actions:
‡ The Model 420’s serial and IEEE-488 output buffers are cleared.
‡ The Model 420 is prepared to accept a new command.
Note
For the serial interface, a Device Clear can be initiated by sending
the
< Ctrl-C > (ASCII code 03) character.
4.4.3 Trigger Command
The trigger command is a low-level IEEE-488 bus message which you can
use to initiate the trigger functions provided by the Model 420. The trigger
functions supported by the Model 420 are documented in paragraph 4.5.8
on page 90. When a trigger command is received by the Model 420, the
appropriate data is loaded into the output buffer(s) as selected by the
*ETE
< value > setting. The data provided is sampled within 25 milliseconds of
the receipt of the trigger command.
Note
The serial interface can also initiate a trigger function by using the
*TRG command.