Agilent Technologies E3646A, Руководство пользователя, Страница: 82 / 211

Chapter 4 Remote Interface Reference
Simplified Programming Overview
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Reading a Query Response
Only the query commands (commands that end with “ ? ”) will instruct the power
supply to send a response message. Queries return either output values or internal
instrument settings. For example, the following statements executed from your
computer will read the power supply’s error queue and print the most recent error:
dimension statement
Dimension string array (80 elements)
‘‘
SYST:ERR?
’’ Read error queue
bus enter statement
Enter error string into computer
print statement
Print error string
Selecting a Trigger Source
The power supply will accept a ‘‘bus’’ (software) trigger or an immediate internal
trigger as a trigger source. By default, the ‘‘BUS’’ trigger source is selected. If you
want the power supply to use an immediate internal trigger, you must select
‘‘
IMMediate
’’. For example, the following statements executed from your
computer will set to an output of 3 V/1 A immediately:
‘‘
VOLT:TRIG 3.0
’’ Set the triggered voltage level to 3.0 V
‘‘
CURR:TRIG 1.0
’’ Set the triggered current level to 1.0 A
‘‘
TRIG:SOUR IMM
’’ Select the immediate trigger as a source
‘‘
INIT
’’ Cause the trigger system to initiate