VXI VT1422A - Manual (Page 327)

VT1422A Command Reference 325 Chapter 7
ROUTe
•
Notice that since there are only 502 CVT elements available for up to 512
possible remote channel specifiers, these last 10 channels (15722-15731) must
not be sent to the CVT or an error will be generated. Since the default data
destination is to BOTH the FIFO and CVT (Data Destination 3), any reference
in ROUT:SEQ:DEF to the last 10 remote channels must force the data
destination to FIFO only.
•
*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_cmd(...)
Usage
Define mix of Remote and on-board channels. First 128 Remote channels
default to FIFO and CVT, next 64 Remote channels are directed to FIFO only
and last eight On-board channels default to FIFO and CVT.
ROUT:SEQ:DEF (@10000:10931,2(11600:11731),124:131)
ROUTe:SEQuence:DEFine?
ROUTe:SEQuence:DEFine? <type> returns the sequence of channels defined in
the scan list.
Parameters
Comments •
The channel list contents and sequence are determined primarily by channel
references in the ROUT:SEQ:DEF command and in any algorithms currently
defined. The SENS:REF:CHANNELS and SENS:CHAN:SETTLING
commands also effect the scan list contents.
•
The <type> parameter selects which channel list will be queried:
"AIN" selects the Analog Input channel list (this is the Scan List).
"AOUT" selects the Analog Output channel list.
"DIN" selects the Digital Input channel list.
"DOUT" selects the Digital Output channel list.
"DEST" does not requesting the contents of a channel list type, rather it requests
the Data Destination number for each channel in the "AIN" channel list.
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
type (string) AIN | AOUT | DEST | DIN | DOUT none