Delta A1500 Series User Manual page 61

User Manual
A1500
AC Power Source
A1500 SERIES includes two distinctive types of command. The first one is command
described in IEEE 488.2, it is common commands for GPIB, represented by "* " at
beginning of the command. The second one is instruments self-defined commands. All
commands are not upper/ lower case sensitive.
There are some special symbols in commands：
 Colon (:)： Colon represents node for tree system, use colon to separate different
 Question mark (?)： Question mark represents this message is question, instruments
 semicolon(;)：there are two usages for semicolon：
1. First usage：back to previous node,
Example：VOLT:AC 100;LIM:AC 200
Explanation： The above instruction has two commands which are VOLT:AC 100 and
2. Second usage：first input semicolon then colon, represents command branches from
Example：VOLT:AC 100;:FETCh:CURRent:AC?
Explanation： The above instruction has two commands which are VOLT:AC 100 and
 Space( )：Space is used to separate command and number or string after it. Instrument
 Star(*)： Star represents this command is follow the standard of IEEE 488.2, it can be
used for all instruments support IEEE 488.2 command.
Example：*IDN?
Explanation：Common command to query instrument name. Instrument will
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parameter until complete command constructed. For example: VOLT:AC?
will prepare the answers for sender to read. If sender does not read
after sending questions, instrument will reserve the answer for last
question command.
Example：Computer side：VOLT:AC?
VOLT:LIM:AC 200 (;) can save one repeated string VOLT and complete
two commands in one instruction, instrument will execute commands in
sequence.
beginning.
FETCh:CURRent:AC?. Using (;:) can connect commands more than
two.
differentiate command and data by space.
Example：VOLT:AC 100
answer its series number. DE-A3000AB X,000,000 will be the
answer for this AC source.
Instrument side：150.0