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
Example Query Channel Closure
This example closes channels 100 and 213 of a
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
Parameters
| Parameter Name | Parameter Type | Range of Values |
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| <channel_list> | numeric | |
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Comments | ∙ Opening Channels: To open: |
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–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
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 |