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Command Syntax
Option 01 VXI Interface Module User Manual
3–7
As the <channel_list> syntax diagram shows, channels on more than one relay
module may be specified in a <channel_list>. The next example specifies
channels on three different relay modules.
<channel_list> Channels Specified
(@m1(1!1), m2(4!6),
m6(3!13!2))
Channel 1 of section 1 on the VX4320, Channel 4 of section 6
of the VX4330, and the channel on the VX4380 that connects
row 3 to column 13 in section 2.
As mentioned above, the module names used in <channel_list>s may be
specified with a [ROUTe:]MODule[:DEFine] command. The command
route:module:Define rfmux, 1
changes the module name assigned to the VX4320 to “rfmux”. The following
<channel_list> can then be used to specify channels on the VX4320.
(@rfmux(3!1,2!2))
specifies channel 3 in section 1 and channel 2 in section 2 of the VX4320.
The order in which channels are specified is important in the [ROUTe:] CLOSE?
<channel_list> and [ROUTe:]OPEN? <channel_list> queries. The states of the
channels are returned in the same order that the channels are specified in the
<channel_list>.
The order in which channels are specified is also important in the [ROUTe:]
SCAN <channel_list> command. This determines the order in which the relays
will be closed each time a trigger event is detected.
The order in which channels are specified in a <channel_list> is important in the
[ROUTe:]CLOSe <channel_list> command when channels in the same section of
a VX4320 or a VX4330 are specified. A VX4320 can close only one channel in a
section. If a [ROUTe:]CLOSE <channel_list> command specifies more than one
relay in a section of a VX4320, the last channel in the <channel_list> will be
closed.
For example, the command
close (@m2(1!1,2!1))
will close channel 2 of section 1 of the VX4320.
A VX4330 can close only one channel in a group of joined sections that have
been specified in a [ROUTe:]CLOSe:MODe SCAN,<module_name>,<sec-
tion_list> command. If more than one channel in such a group of sections is