VXI VT1422A - Manual (Page 284)

282 VT1422A Command Reference Chapter 7
DIAGnostic
DIAGnostic:CUSTom:REFerence:TEMPerature
DIAGnostic:CUSTom:REFerence:TEMPerature extracts the current Reference
Temperature Register Contents, converts it to 32-bit floating point format and sends
it to the FIFO. This command is used to verify that the reference temperature is as
expected after measuring it using a custom reference temperature EU conversion table.
•
Send with VXIplug&play Function: hpe1422_cmd(...)
Usage the program must have EU table values stored in table_block
download the new reference EU table
DIAG:CUST:PIECEWISE <table_range>,<table_block>,(@<ch_list>)
designate channel as reference
SENS:FUNC:CUST:REF <range>,(@<ch_list>)
set up scan list sequence (ch 0 in this case)
Now run the algorithm that uses the custom reference conversion table
dump reference temp register to FIFO
DIAG:CUST:REF:TEMP
read the diagnostic reference temperature value
SENS:DATA:FIFO?
DIAGnostic:IEEE
DIAGnostic:IEEE <mode> enables (1) or disables (0) IEEE-754 NAN (Not A
Number) and
±INF value outputs. This command was created for the VEE platform.
Parameters
Comments •
When <mode> is set to 1, the module can return ±INF and NAN values according
to the IEEE-754 standard. When <mode> is set to 0, the module returns values
as ±9.9E37 for INF and 9.91E37 for NAN.
•
Related Commands: DIAG:IEEE?
•
*RST Condition: DIAG:IEEE 1
•
Send with VXIplug&play Function: hpe1422_cmd(...)
Usage
Set IEEE mode
DIAG:IEEE 1
INF values returned in IEEE standard
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
mode boolean (uint 16) 0 | 1 volts