User's Manual

E1442A Command Reference 67Chapter 3

Example Closing Form C Switch Channels

This example closes channel 00 of card number 1 Form C switch module

and channel 15 of card number 2 Form C switch module in a single

switchbox.

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100 closes channel 00 of Form C

switch #1. 215 closes channel 15

of Form C switch #2.

[ROUTe:]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 in the NO state (C connected to NO)

or returns 0 if the channel is in the NC state (C connected to NC). If a list

of channels is queried, a comma-delineated list of 0 or 1 values is

returned in the same order of the channel list.

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

the current state of the hardware controlling the specified channel. It

does not account for a failed switch element or a relay closed by direct

Example Query Form C Switch Channel Closure

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100 closes channel 00 of Form C

switch #1. 215 closes channel 15

of Form C switch #2.

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Query channel 215

[ROUTe:]OPEN

[ROUTe:]OPEN <channel_list> de-energizes the relays for the channels

specified in the channel_list connecting the Common (C) terminal to the

Normally Closed (NC) terminal. The channel_list is in the form (@ccnn),

(@ccnn,ccnn), or (@ccnn:ccnn) where cc = card number (00-99) and nn

= channel number (00-63).

Parameters

Comments Using Upper Range 99 in the Channel List: Specifying the last channel as

99 (for example, (@100:199) automatically opens all channels on the

card number specified by cc.

Name Type Range of Values Default Value

<channel_list> numeric

cc00 - cc63

N/A