CONFigure:DIGital:WIDTh
Syntax
CONFigure:DIGital:WIDTh <width>, (@<ch_list>)
CONFigure:DIGital:WIDTh? (@<ch_list>)
Description
This command configures the specified digital input or output channels for the desired width.
Used With:
34950A Digital I/O Module (digital input/output channels only)
34952A Multifunction Module (digital input/output channels only)
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<width> |
Discrete |
{BYTE|1|WORD|2|LWORd|4} BYTE (or "1" byte): 8
bits |
BYTE (8 bits) |
|
<ch_list>
|
Numeric
|
One or more digital input or output channels in the form (@sccc). 34950A: s101
through s104, s201 through s204 |
This is a required parameter
|
Remarks
Depending on the width specified, the channel numbering is modified as shown below. For example, if you specify the width as a 16-bit WORD on the 34950A, channels 101 and 102 are combined and addressed collectively as channel 101.
|
34950A |
Bank 2 |
Bank 1 |
||||||
|
BYTE (8 Bits): |
Ch 204 |
Ch 203 |
Ch 202 |
Ch 201 |
Ch 104 |
Ch 103 |
Ch 102 |
Ch 101 |
|
WORD (16 Bits): |
Ch 203 |
Ch 201 |
Ch 103 |
Ch 101 |
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|
LWORd (32 Bits): |
Ch 201 |
Ch 101 |
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|
|
|
|
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|
34952A |
Bank 1 |
|
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|
BYTE (8 Bits): |
Ch 4 |
Ch 3 |
Ch 2 |
Ch1 |
|
|||
|
WORD (16 Bits): |
Ch 3 |
Ch 1 |
|
|||||
|
LWORd (32 Bits): |
Ch 1 |
|
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The selected width applies to input or output operations on the specified channels. Use the CONFigure:DIGital:DIRection or SOURce:DIGital:STATe command to configure the specified channels for input or output operations.
Changing the channel width will disable buffered (memory) operations and clear memory on the specified digital channels (see [SENSe:]DIGital:MEMory:ENABle command).
The selected width is stored in volatile memory and will be set to "BYTE" when power is turned off or after a Factory Reset (*RST command).
Return Format
The query command returns the width in bytes for the specified channels: "1" for BYTE (8 bits), "2" for WORD (16 bits), or "4" for LWORd (32 bits). Multiple responses are separated by commas.
Examples
The following program segment configures the 34950A in slot 3 for two 16-bit words and then configures the channels for output operations.
CONF:DIG:WIDTH
WORD,(@3101,3103)
CONF:DIG:DIR OUTP,(@3101,3103)
The following query returns the width of channels 101 and 103 on the 34950A in slot 3.
CONF:DIG:WIDTH? (@3101,3103)
Typical Response: 2,2
The following program segment configures the 34952A in slot 5 for one 32-bit word and then configures the channel for output operations.
CONF:DIG:WIDTH
LWORD,(@5001)
CONF:DIG:DIR OUTP,(@5001)
The following query returns the width of channel 1 on the 34952A in slot 3.
CONF:DIG:WIDTH? (@5001)
Typical Response: 4