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CLOSe? [ROUTe:]CLOSe? <channel_list> returns the current state of the channel(s)
queried. The channel_list is in the form (@ccnn) (see
[ROUTe:]CLOSe for
definition). The command returns 1 for channel(s) closed or returns 0 for
channel(s) opened.
Comments • Query is Software Readback: The [ROUTe:]CLOSe? command
returns the current software state of the channel(s) specified. It does
not account for relay hardware failures. A maximum of 127
channels at a time can be queried for a multi-module switchbox.
Example Query Channel Closure
This example closes channels 100 and 213 of a two-module switchbox and
queries channel closure. Since the channels are programmed to be closed,
1,1 is returned as a string.
CLOS (@100,213) ! Close channels 100 and 213
CLOS? (@100,213) ! Query channels 100 and 213 state
OPEN [ROUTe:]OPEN <channel_list> opens the RF multiplexer channels
specified by channel_list. The channel_list has the form (@ccnn) where
cc = card number (00-99) and nn = channel number (00-03 and 10-13).
Parameters
Parameter Name Parameter Type Range of Values
<channel_list> numeric cc00-cc03, cc10-cc13
Comments • Opening Channels: To open:
– a single channel, use [ROUTe:]OPEN (@ccnn)
–
for multiple channels, use [ROUTe:]OPEN (@ccnn,ccnn)
–
sequential channels, use [ROUTe:]OPEN (@ccnn:ccnn)
–
groups of sequential channels, use
[ROUTe:]OPEN (@ccnn:ccnn,ccnn:ccnn)
–
or any combination.
Opening order for multiple channels with a single command is not
guaranteed.
• Related Commands: [ROUTe:]CLOSe, [ROUTe:]OPEN?
• *RST Condition: All channels open.
Example Opening Channels
This example opens channels 100 and 213 of a two-module switchbox (card
numbers 01 and 02).
OPEN (@100,213) ! Open channels 100 and 213.
100 opens channel 00 of card #1;
213 opens channel 13 of card #2
Chapter 5 HP E1366A/E1367A RF Multiplexers Command Reference 49