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326 VT1422A Command Reference Chapter 7
ROUTe
• Returned Value: Data type is an int16 array). Use ROUT:SEQ:POINTS? to
determine how many values will be returned in the array. Can also be returned
as type string, see later comment regarding VXIplug&play function.
When the <type> parameter is "AIN," "AOUT," "DIN," or "DOUT," each value
returned represents a channel number.
When the <type> parameter is "DEST", each value returned is the data
destination code for a channel in the "AIN" list. The destination codes are:
1 = Reading will be sent to CVT only
2 = Reading will be sent to FIFO only
3 = Reading will be sent to CVT and FIFO
0 = Reading will be taken but not recorded (neither CVT or FIFO)
-1 = Channel is referenced in algorithm. Algorithm specifies destination.
• *RST Condition: To supply the necessary time delay before Digital inputs are
read, the analog input (AIN) scan list contains two entries for channel 0
(100).This minimum delay is maintained by replacing these default channels as
others are defined by algorithms or ROUT:SEQ:DEF. The three other lists
contain no channels.
• Send with VXIplug&play Function: hpe1422_cmdString_q(...) to return a
string which is a comma-separated-list of values
Usage ROUT:SEQ:DEF? AIN
query for analog input (Scan List)
sequence
ROUTe:SEQuence:POINts?
ROUTe:SEQuence:POINts? <type> returns the number of channels defined in the
selected channel list types.
Parameters
Comments
• The channel list contents and sequence are determined by channel references in
the algorithms currently defined.
• The <type> parameter selects which channel list will be queried:
"AIN" selects the Analog Input list.
"AOUT" selects the Analog Output list.
"DIN" selects the Digital Input list.
"DOUT" selects the Digital Output list.
Note: "DEST" is not one of the choices because it is not a channel list type.
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
type (string) AIN | AOUT | DIN | DOUT none