ROUTe:OPEN:PAIR
Syntax
ROUTe:OPEN:PAIR (@<ch_list>)
ROUTe:OPEN:PAIR? (@<ch_list>)
Description
This command performs a 2-wire open of the specified channel and its paired channel. The query form of the command returns '1' if both channels in the pair are opened.
Used With:
34934A High-Density Matrix Module
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<ch_list> |
Numeric |
One or more channels in the form defined in the section 34934A Channel Addressing. Only the channels corresponding to the high (H) terminals of the matrix are specified. |
This is a required parameter |
Remarks
This command is valid for the 4x32, 4x64, and 8x32 configurations. For these configurations, the matrix high channels (H terminals) are paired with their corresponding matrix low channels (L terminals).
Both channels in the pair are opened after the command completes, regardless of the initial state of the individual channels.
An error occurs (card does not support requested operation) if the command is executed while the module is in the 4x128, 8x64, or 16x32 configuration as these modes do not contain high/low channel pairs.
To open/query 1-wire channels of all matrix configurations, use the ROUTe:OPEN and ROUTe:OPEN? commands.
Channel numbering - the channel addressing scheme used by the 34934A is dependent upon the matrix configuration. See 34934A Channel Addressing for more information.
Return Format
The query command returns "1" if both channels of the pair are open, or "0" if either or both channels of the pair are closed. If the paired channels are in different states, an error is generated in addition to the "0" returned. The states of multiple channels queried are separated by commas.
Examples
The following command opens channel 1520 and its paired channel 1584 on row 3 in slot 1. The module is configured as a dual 4x64 matrix. Note that only the channel of the high matrix (MH) is specified.
ROUT:OPEN:PAIR (@1520)
The following command opens channels 2610 and 2611 and their paired channels 2642 and 2643 on row 6 in slot 2. The module is configured as a 8x32 matrix. Note that only the channels of the high matrix (MH) are specified.
ROUT:OPEN:PAIR (@2610, 2611)
The following query reads the state of the channels opened in the above examples (1 = open; 0 = either or both channels in pair is closed). Only the channels in the upper matrix are specified.
ROUT:OPEN:PAIR? (@1520)
Typical Response: 1
ROUT:OPEN:PAIR? (@2610, 2611)
Typical Response: 1,1