Remote-To-Local Transition - Keithley SourceMeter 2400 User Manual

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2400 Series SourceMeter User's Manual

Remote-to-local transition

When changing from remote to local operation, the following actions occur.
• The SourceMeter stops performing source-measure operations and returns to the
idle state (ARM annunciator off).
• All sweep operations are aborted.
• All user-defined display messages are cancelled.
• The display is turned on (if it was previously turned off).
• Source autoranging is disabled.
• Concurrent measurements are enabled.
• If resistance was enabled, source readback is enabled.
• The display is set to the default toggle state.
• Readings are continuously taken (if OUTPUT is on).
Selecting an interface
The SourceMeter supports two built-in remote interfaces:
• GPIB (General Purpose Interface Bus)
• RS-232 interface
You can use only one interface at a time. The factory interface selection is the GPIB bus.
You can select the interface only from the front panel. The interface selection is stored in
non-volatile memory; it does not change when power has been off or after a remote inter-
face reset.
The GPIB bus is the IEEE-488 interface. You must select a unique address for the Source-
Meter. The address is displayed when the instrument is turned on. At the factory, the
address is set to 24.
The RS-232 interface is a serial interface. Programmable aspects of this interface include
the following (factory default settings are shown in parentheses):
• Baud rate (9600)
• Data bits (8)
• Parity (none)
• Terminator (CR)
• Flow control (none)
An interface is selected and configured from the COMMUNICATIONS option of the
Main Menu (Section
interfaces, see "Primary address," page
page 14-18.
NOTE
When changing interface selections, the SourceMeter performs a power-on
reset. To check and/or change options of the selected interface, you must re-
enter the menu structure.
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1, "Main menu"). For details on the programmable aspects of the
14-6, and "RS-232 interface operation,"
Remote Operations 14-3