RF Multiplexer Command Reference 41
Chapter 4
Example
Closing RF Multiplexer Channels
This example closes channels 100 and 202 of a two-card switchbox (card
numbers 01 and 02).
CLOS (@101,202)
!101 connects channel 01 to
!COM00 on card #1 and 202
!connects channel 02 to COM00
!on card #2.
[ROUTe:]CLOSe?
[ROUTe:]CLOSe?
<channel_list>
returns the current state of the channel(s)
queried.
channel_list
has the form (@
ccmmnn
) (see [ROUTe:]CLOSe for
definition). The command returns 1 if channel(s) are closed or returns 0 if
channel(s) are open.
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 01 and 02 of a two-module switchbox (card
number 01, module 00 and 01) and queries channel closure. Since the
channels are programmed to be closed, 1,1 is returned.
CLOS (@10001,10102)
!Connect channel 01 to COM00 on
!the RF Multiplexer module (00)
!and channel 02 to COM00 on the
!Expander module (01).
CLOS? (@10001,10102)
!Query module 00 - channel 01
!and module 01 - channel 02
!closure state.
[ROUTe:]OPEN?
[ROUTe:]OPEN?
<channel_list>
returns the current state of the channel(s)
queried.
channel_list
has the form (@
ccmmnn
) (see [ROUTe:]CLOSe for
definition). The command returns 1 if channel(s) are open or returns 0 if
channel(s) are closed.
Comments
Query is Software Readback:
The ROUTe:OPEN? command returns the
current software state of the channels 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.
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