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2-20 Close/Open Switching Module Channels Model 2701 User’s Manual

Remote programming — Multiple channel control commands

The commands to close and open the system channel are listed in Table 2-2.

Reference:

a. ROUTe:MULTiple:CLOSe <clist>

This command functions like the front panel CLOSE key (MULTI menu

option) to close channels. When you send this command to close the channels

speciﬁed in the <clist>, only those listed channels will close. Channels not

speciﬁed are not affected, and channel pairing is disabled.

NOTE Channels closed by ROUT:MULT:CLOS are not displayed.

The ROUT:MULT:CLOS command cannot be used to perform

thermocouple temperature measurements using the internal or

external reference junction. The simulated reference junction will

instead be used and the integrity of the temperature reading will be

questionable (“ERR” annunciator on). See “Temperature

measurements,” page 3-33, for details.

NOTE *OPC or *OPC? should be used with :ROUT:MULT:CLOS if the

<clist> is large. Details on *OPC and *OPC? are provided in

Section 12.

Table 2-2

Multiple channel control commands

Commands Description Ref

ROUTe:MULTiple:CLOSe <clist> Specify one or more channels to close. a

ROUTe:MULTiple:OPEN <clist> Open channels specified in list. Unlisted

channels not affected.

ROUTe:OPEN:ALL Open all channels. c

ROUTe:MULTiple:CLOSe? Returns a <clist> of all closed channels. d

ROUTe:MULTiple:CLOSe:STATe?

<clist>

Query closed channels in specified list

(1 = closed).

Channel list parameter:

<clist> = (@SCH)

where: S = Mainframe slot number (1 or 2)

CH = Switching module channel number (must be 2 digits)

Examples: (@101) = Slot 1, Channel 1

(@101, 203) = Slot 1, Channel 1 and Slot 2, Channel 3

(@101:110) = Slot 1, Channels 1 through 10

Keithley 2701 User Manual

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