6517B-900-01 Rev. A / Jun 2008
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5-5
Model 6517B Electrometer User’s Manual
Section 5: Remote Operation
Common commands
Common commands are common to all IEEE-488 devices on the bus. The following information
summarizes the common commands that are used most often. For complete details, refer to
Section 11 of the Reference Manual.
*CLS
(clear status)
Clears all event registers and Error Queue. After clearing an event register, you can monitor the
register for a bit to set, indicating that an event (such as the buffer becoming full) has occurred.
*RCL <NRf>
(recall)
Returns the instrument to the instrument setup saved at the specified memory location. Example:
To recall the setup saved at memory location 0, send
*RCL 0
.
*RST
(reset)
Returns the instrument to the *RST defaults and places the instrument in the idle state (ARM
indicator off).
*SAV <NRf>
(save)
Saves the instrument setup to the specified memory location (0 to 9). Example: To save the setup
to memory location 0, send
*SAV 0
.
*TRG
(trigger)
When a trigger model control source is set for BUS, event detection is satisfied by sending this bus
trigger. For example, if instrument operation is waiting at the measure (trigger) layer control source
and it is programmed for BUS events,
*TRG
will provide the required event, resulting in a device
action (measurement).
*WAI
(wait to continue)
This delay is used to allow the
*TRG
or an initiate command (
:INIT
or
:INIT:CONT ON
) to finish
before processing any further commands. An
INITiate
command is not considered finished until
instrument operation returns to the idle state.
SCPI commands
In the Model 6517B, you are given access to control settings that are hidden on other instruments.
Because the instrument has more control points available, it requires more commands than its
counterparts to perform comparable tasks. To accommodate this, the instrument incorporates the
SCPI command set.
This introduction to the SCPI command set has three goals:
•
Describe the syntax of SCPI commands. Included are descriptions of short forms and
default nodes, which help reduce the amount of data sent to the instrument.
•
Provide some simple programs to perform commonly used tasks.
•
Describe the SCPI commands used in the example programs so you can modify the
programs to suit your needs.
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