Chroma 61501, Руководство пользователя

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Programmable AC Source 61501/61502/61503/61504 User’s Manual
8-6
are sent, data out of range error will be produced. Reversing the order, or sending the
commands in one program message can avoid such kind of error. For the above example,
the program message
VOLTage : AC 220 ; VOLTage : RANGe HIGH<PMT>
can be sent without error.
8.6 The Commands of the AC Source
This subsection is going to talk about the syntax and parameters for all commands of the AC
source. The examples given for each command are generic.
Syntax Forms Definitions of syntax are in long form headers, whereas only short
form headers appear in examples.
Parameters Most commands require parameter.
Return Parameters All queries return a parameter.
Models If the commands are merely applied to specific models, these
models will be listed in the Model only entry. If there is no Model
only entry, the command will be applied to all models.
8.6.1 Common Command Dictionary
Common commands begin with a “ * ” , and consist of three letters and/or one “ ? ” (query).
Common commands and queries are listed alphabetically.
*CLS Clear
status
This command clears the following registers
(1) Questionable Status Event
(2) Status Byte
(3) Error Queue
*ESE<n>
Standard event status enabled
This command programs the Standard Event register bits. If one or more
of the enabled events of the Standard Event register is set, the ESB of Status
Byte Register is set too.
Bit Configuration of Standard Event Status Enabled Register
Bit Position 7 6 5 4 3 2 1 0
Bit Name PON - - - CME EXE DDE QYE - - - OPC
CME = Command error DDE = Device-dependent error
EXE = Execution error
OPC = Operation complete
PON = Power-on QYE = Query error
*ESE?
Return standard event status enabled