User manual

80 Relay Multiplexer Command Reference Chapter 3
Comment Defining Scan List: When ROUTe:SCAN is executed, the channel list is
checked for valid card, terminal, bank, and channel numbers. An error is
generated for an invalid channel list.
64 Channel Limit: Individual channel numbers are limited to 64 due to the
maximum length of command in the current driver.
Scanning Channels: To scan:
• a single channel, use ROUT:SCAN (@ssbc) or (@ss0hbc)
• multiple channels, use ROUT:SCAN (@ssbc,ssbc,...) or
(@ss0hbc,ss0hbc,...)
• sequential channels, use ROUT:SCAN (@ssbc:ssbc) or
(@ss0hbc:ss0hbc)
• groups of sequential channels, use ROUT:SCAN (@ssbc:ssbc,
ssbc:ssbc) or <(@ss0hbc:ss0hbc, ss0hbc:ss0hbc)
• or any combination of the above
NOTE Channel numbers can be in the channel_list in any random order.
Scanning Operation: When a valid channel list is defined,
INITiate[:IMMediate] begins the scan and closes the first channel in the
channel_list. Successive triggers from the source specified by
TRIGger:SOURce advance the scan through the channel list.
Stopping Scan: See the ABORt command.
Related Commands: OUTPut, TRIGger
*RST Condition: All channels open.
Example Scanning Using External Devices
See "Scanning Channels" in Chapter 2 for examples of scanning
programs using external instruments.
[ROUTe:]SCAN:MODE
[ROUTe:]SCAN:MODE <mode> sets the multiplexer channels defined by
the [ROUTe:]SCAN <channel_list> command for none, volts, two-wire
ohms, or four-wire ohms measurements.
Parameters
Name Type Range of Values Default
<mode> discrete NONE I VOLT I RES I FRES NONE