User`s manual

62 Relay Multiplexer Command Reference
Example Selecting the 4-Wire Ohms Mode
TRIG:SOUR EXT
Selects external trigger source.
SCAN:MODE FRES
Selects the 4-wire ohms scanning mode.
SCAN (@100:107)
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, RES, or FRES if the scan mode is in the NONE, VOLT, RES,
or
FRES mode, respectively.
Example Query Scan Mode
Since this example selects the
FRES (4-wire ohms) mode, the query command
returns
FRES.
SCAN:MODE FRES
Selects the 4-wire ohms scanning mode.
SCAN:MODE?
Query the scanning mode.
SCAN:PORT
[ROUTe:]SCAN:PORT <port> enables/disables the closing of the AT, BT, and AT2
tree switches during scanning.
SCAN:PORT ABUS closes the appropriate tree
switches (for Analog Bus connections). For correct operation, set the measurement
modes by the
[ROUTe:]SCAN:MODE command.
The
[ROUTe:]SCAN:PORT NONE command prevents closing the tree switches.
Parameters
Comments • Order of Command Execution: The [ROUTe:]SCAN:PORT command must
be executed before the
[ROUTe:]SCAN <channel_list> command.
• *RST Condition: [ROUTe:]SCAN:PORT NONE
Example Selecting the ABUS Port
TRIG:SOUR EXT
Selects external trigger source.
SCAN:MODE FRES
Selects the 4-wire ohms scanning mode.
SCAN:PORT ABUS
Selects the ABUS port.
SCAN (@100:107)
Sets channel list.
INIT
Starts scanning cycle.
Parameter Name Parameter Type Range of Values
<
port>
discrete ABUS|NONE