User manual

82 Relay Multiplexer Command Reference Chapter 3
[ROUTe:]SCAN:MODE?
[ROUTe:]SCAN:MODE? returns the current state of the scan mode.
Comments Values Returned. The command returns NONE, VOLT, RES, or FRES if
the scan mode is in the none, volts, two-wire ohms, or four-wire ohms
measurement mode, respectively.
Example Query the Scanning Mode
This example selects the four-wire ohms measurement mode (FRES) on
card #1 of a single-module switchbox, then queries the measurement
state. Because four-wire ohms mode is selected, the query command
returns "FRES".
SCAN:MODE FRES
!Select four-wire ohms scanning mode
SCAN:MODE?
!Query the scanning mode
[ROUTe:]SCAN:PORT
[ROUTe:]SCAN:PORT <port> enables or disables the closing of the
analog bus connection control relays 0992, 0993, and 0996 during
scanning. SCAN:PORT ABUS closes the appropriate control relay for
analog bus connections. The ROUTe:SCAN:PORT NONE command
prevents closing the control relays.
Parameters
Comments Order of Command Execution: Measurement modes are selected by the
[ROUTe:]FUNCtion and [ROUTe:]SCAN:MODE commands. Then the
[ROUTe:]SCAN:PORT command, followed by the [ROUTe:]SCAN
<channel_list> command.
Analog Bus Connection: The SCAN:PORT ABUS command only
connects/disconnects the analog bus during scans. To connect/
disconnect the analog bus when not scanning channels, it is necessary
to switch the appropriate control relays (0992, 0993, and 0996). See the
[ROUTe:]CLOSe or [ROUTe:]OPEN for more information.
*RST Condition: [ROUTe:]SCAN:PORT NONE
Name Type Range of Values Default
<port> discrete ABUS | NONE NONE