3 Features and Functions
104 Keysight 34980A Mainframe User’s Guide
Rules for Using a Channel List
Many of the SCPI commands for the 34980A include a channel list parameter
which allows you to specify one or more channels.
From the remote interface, the channel number has the form (@sccc), where s is
the mainframe slot number (1 through 8) and ccc is the channel number. You can
specify a single channel, multiple channels, or a range of channels.
The following command closes channel 10 on the module in slot 3.
ROUT:CLOS (@3010)
The following command closes channels 10, 12, and 15 on the module in slot 2.
ROUT:CLOS (@2010,2012,2015)
The following command closes channels 5 through 10 (slot 1) and channel 15 (slot
2). When you specify a range of channels, any channels that are invalid will be
ignored (no error will be generated) but the first and last channel in the range
must be valid.
ROUT:CLOS (@1005:1010,2015)
The Analog Bus relays (numbered s911, s912, s913, etc.) on the multiplexer and
matrix modules are ignored if they are included in a range of channels. An error
will be generated if an Analog Bus relay is specified as the first or last channel in a
range of channels. For example, the following command closes all valid channels
between channel 30 (slot 1) and channel 5 (slot 2). In addition, this command
closes Analog Bus relay 911 on the module in slot 1 (Bank 1). Note that although
the specified range of channels includes the other Analog Bus relays, they are
ignored and are not closed by this command.
ROUT:CLOS (@1030:2005,1911)
The following command will generate an error since the Analog Bus relays cannot
be specified as the first or last channel in a range of channels (none of the
channels will be closed).
ROUT:CLOS (@1005:1911) !Generates an error
In the following command, since the optional <ch_list> parameter is omitted, the
command will be applied to the internal DMM. If the internal DMM is disabled or
is not present, an error will be generated.
INP:IMP:AUTO ON !Applies to the internal DMM
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