14: TSP command reference 2470 High Voltage SourceMeter Instrument
14-162 2470-901-01 Rev. A / May 2019
Also see
smu.source.func (on page 14-160)
smu.source.output (on page 14-164)
smu.source.protect.level (on page 14-164)
smu.source.offmode
This attribute defines the state of the source when the output is turned off.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Restore configuration
Instrument reset
Power cycle
Source configuration list
Configuration script
Source configuration list
smu.OFFMODE_NORMAL
Usage
sourceOffMode = smu.source.offmode
smu.source.offmode = sourceOffMode
The output-off setting; set to one of the following values (see the Details below for
specifics regarding each option):
 smu.OFFMODE_NORMAL
 smu.OFFMODE_ZERO
 smu.OFFMODE_HIGHZ

Details
When the 2470 is set to the normal output-off state, the following settings are made when the source
is turned off:
• The measurement sense is set to 2-wire
• The voltage source is selected and set to 0 V
• The current limit is set to 10% of the full scale of the present measurement function autorange
value
• If source readback is off, Output Off is displayed in the home screen Source area
• If source readback is on, the actual measurement is displayed in the home screen Source area
• If measurement is set to resistance, dashes (--.----) are shown in the home screen Source area
• The Source button on the home screen shows the value that will be sourced when the output is
turned on again
When the high-impedance output-off state is selected and the output is turned off:
• The measurement sense is set to 2-wire
• The output relay opens, disconnecting the instrument as a load
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