Specifications

SCAN:MODE [ROUTe:]SCAN:MODE <mode> sets the multiplexer channels defined by
the
[ROUTe:]SCAN <channel_list> command for None, Volts, or 2-wire
Ohms measurements. Strain measurements with a relay or FET switchbox
and an external multimeter require the
SCAN:MODE VOLT mode.
Parameters
Parameter Name Parameter Type Range of Values
mode
Discrete NONE | VOLT | RES
Comments • Order of Command Execution: The [ROUTe:]SCAN:MODE
command must be executed before the [ROUTe:]SCAN <channel_list>
and
[ROUTe:]CLOSe <channel_list> commands.
• NONE and VOLT Mode Description: Channel list is set up for
voltage measurements. This mode is required for strain
measurements.
• RES Mode Description: Channel list is set up for 2-wire ohms
measurements. When making 2-wire measurements using the relay
strain gage multiplexer, the bridge selection jumper must be set to
the "FULL" bridge position.
• *RST Condition: ROUT:SCAN:MODE NONE
Example Selecting the Voltage Mode
This example scans four channels for DC voltage measurements.
TRIG:SOUR EXT Selects external trigger source.
SCAN:MODE VOLT Selects the voltage scanning mode.
SCAN (@100:102,115) Sets channel list.
INIT Starts scanning cycle.
SCAN:MODE? [ROUTe:]SCAN:MODE? returns the current state of the scan mode. The
command returns
NONE, VOLT, or RES if the scan mode is in the NONE,
VOLT, or RES mode, respectively.
Example Query Scan Mode
Since this example selects the
VOLT mode, the query command returns
VOLT.
SCAN:MODE VOLT Selects the voltage scanning mode.
SCAN:MODE? Query the scanning mode.
Chapter 5 Strain Gage Multiplexer Command Reference 85
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