Agilent Technologies E1345A Manual de usuario descargar pdf (Pagina 58)

Relay Multiplexer Command Reference 59

CLOSe?

[ROUTe:]CLOSe? <channel_list> returns the current state of the channel(s)

queried. The channel_list is in the form (@ccnn). The command returns

1 if the

channel is closed or returns

0 if the channel is open.

Comments • Query is Software Readback: The [ROUTe:]CLOSe? command returns the

current software state of the channel specified. It does not account for relay

hardware failures.

Example Query Multiplexer Channel Closure

CLOS (@100,215)

100 closes channel 00 of multiplexer #1;

215 closes channel 15 of multiplexer #2.

CLOS? (@215)

Query channel 215

OPEN

[ROUTe:]OPEN <channel_list> opens the multiplexer channels specified in the

channel_list. The channel_list is in the form (@ccnn), (@ccnn,ccnn), or

(@ccnn:ccnn) where cc = card number (00–99) and nn = channel number (00–15).

Parameters

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);

-- a group 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.

• Opening the AT, BT, AT2, and RT Tree Switches:

Use channel numbers 90, 91, 92, and 93 to open the AT, BT, AT2, and RT Tree

Switches, respectively.

• Related Commands: [ROUTe:]CLOSe, [ROUTe:]OPEN?

• *RST Condition: All multiplexer channels are open.

Example Opening Multiplexer Channels

This example opens channel 00 of a card number 1 multiplexer module and

channel 15 of a card number 2 multiplexer module in a single switchbox.

OPEN (@100,215)

100 opens channel 00 of multiplexer #1;

215 opens channel 15 of multiplexer #2.

Parameter Name Parameter Type Range of Values

channel_list>

numeric cc00–cc15

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 92 93

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Agilent Technologies E1345A Manual de usuario Pagina 58

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