ROUTe:CHANnel:DELay
Syntax
ROUTe:CHANnel:DELay {<seconds>|MIN|MAX|DEF}, (@<ch_list>)
ROUTe:CHANnel:DELay? [{MIN|MAX}, ] (@<ch_list>)
Description
This command adds a delay between multiplexer channels in the scan list (useful for high-impedance or high-capacitance circuits). The delay is inserted between the relay closure and the actual measurement on each channel, in addition to any delay that will implicitly occur due to relay settling time. The programmed channel delay overrides the default channel delay that the instrument automatically adds to each channel.
Used With:
34921A through 34925A Multiplexer Modules
34950A Digital I/O Module (digital input and counter channels only)
34952A Multifunction Module (digital input and totalizer channels only)
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<seconds> |
Numeric |
0 to 60 seconds, with 1 ms resolution. MIN = 0 seconds, MAX = 60 seconds |
|
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc). |
This is a required parameter |
Remarks
You can select a unique delay for each channel on the module. The default channel delay is automatic; the instrument determines the delay based on function, range, integration time, and ac filter setting.
The channel delay is valid only while scanning. If no channels have been assigned to the scan list (see ROUTe:SCAN command), the specified channel delay is ignored (no error is generated).
To ensure you are getting the most accurate measurements possible, use care when setting the channel delay less than the default value (Automatic). The default channel delay is designed to optimize parameters, such as settling time, for the most accurate measurements.
The CONFigure and MEASure? commands set the channel delay to Automatic.
The instrument sets the channel delay to Automatic after a Factory Reset ( *RST command).
Return Format
The query command returns the delay in seconds in the form "+1.00000000E+00" for each channel specified. Multiple responses are separated by commas.
Examples
The following command adds a 2-second channel delay to channels 3 and 13 in slot 1.
ROUT:CHAN:DEL 2,(@1003,1013)
The following query returns the channel delay selected on channels 3 and 13 in slot 1.
ROUT:CHAN:DEL? (@1003,1013)
Typical Response: +2.00000000E+00,+2.00000000E+00