Keithley 2750, User Manual, Page: 85 / 452

2-30 Close/Open Switching Module Channels Model 2750 Multimeter/Switch System User’s Manual
ROUTe:CLOSe?
ROUTe:MULTiple:CLOSe?
ROUTe:MULTiple:CLOSe:STATe? <clist>
These query commands are used to determine closed switching module channels.
ROUT:CLOS?
is used to return a list of closed measurement channels including the paired
channel for 4-wire measurements. It will not return non-measurement channels. For
details, see
Table 2-1 and related reference information.
ROUT:MULT:CLOS?
is used to return all closed channels (measurement and
non-measurement). For details, see Table 2-2 and related reference information.
ROUT:MULT:CLOS:STAT?
is used to return the state (open or closed) of each specified
channel. A “0” is returned for an open channel, and a “1” is returned for a closed channel.
For details, see
Table 2-2 and related reference information.
SYSTem:CARD commands
There is a series of SYSTem:CARD commands that can be used to acquire the following
information about a switching module installed in the Model 2750:
• Return the serial number and firmware revision.
• Determine the maximum allowable voltage.
• Determine if the module supports multiplexer or isolated channels.
• Determine if the module has built-in temperature sensors for internal cold junction,
thermocouple temperature measurements.
• Determine which channels are used for volts/2-wire measurements and which are
used for amps.
• Determine which channels are used for analog or digital output.
• Determine the totalizer channel (Model 7706 only).
The SYSTem:CARD commands are covered in Table 15-7 .
2750-900-01.book Page 30 Wednesday, August 3, 2011 7:56 AM