VXi VT1529A/B 사용자 설명서

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The Current Value Table is an area in memory that can contain as many as 502 

32-bit floating point values. Algorithms can copy any of their variable values 
into these CVT elements while they execute. The algorithm statements to put 
data into the CVT are:
writecvt( <expr>, <element_number> ) and
writeboth( <expr>, <element_number> ).

There is a fixed relationship between channel number and CVT element for 
reading values from channels placed in the Scan List with ROUT:SEQ:DEF. 
When mixing Scan List data acquisition with algorithm data storage, be careful 
not to overwrite Scan List generated values with algorithm generated values. 
See “ROUTe:SEQuence:DEFine” on page 323 for controlling CVT entries from 
the analog scan list.

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Elements 0 through 9 are not accessible.

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The format of values returned is set using the FORMat[:DATA] command

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Returned Value: ASCII values are returned in the form 

±1.234567E±123. 

For example 13.325 volts would be +1.3325000E+001. Each value is followed 
by a comma (,). A line feed (LF) and End-Or-Identify (EOI) follow the last value. 
The data type is a string array.

REAL 32, REAL 64, and PACK 64, values are returned in the IEEE-488.2-1987 
Definite Length Arbitrary Block Data format. This data return format is 
explained in “Arbitrary Block Program and Response Data” on page 233. 
For REAL 32, each value is 4 bytes in length (the data type is a float32 array). 
For REAL 64 and PACK 64, each value is 8 bytes in length (the data type is a 
float64 array).

After *RST/Power-on, each element in the CVT contains the IEEE-754 value 
"Not-a-number" (NaN). Elements specified in the DATA:CVT? command that have 
not been written to be an algorithm will return the value 9.91E37.

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*RST Condition: All elements of CVT contains IEEE-754 "Not a Number."

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Use VXIplug&play function: hpe1422_readCVT_Q(...)

SENS:DATA:CVT?  (@10:511)

SENS:DATA:CVT?  (@30:38)