pipx40_psuGetInfo
|
Function |
pipx40_psuGetInfo (ByVal vi As Long, ByVal subUnit As Long, ByRef typeNum As Long, ByRef voltage As Double, ByRef current As Double, ByRef precision As Long, ByRef capabilities As Long) As Long | |
|
ViStatus |
pipx40_psuGetInfo (ViSession vi, ViUInt32 subUnit, ViPUInt32 typeNum, ViPReal64 voltage, ViPReal64 current, ViPUInt32 precision, ViPUInt32 capabilities); |
|
Parameter |
I/O |
Description |
|
vi |
in |
Instrument handle |
|
subUnit |
in |
Numeric variable indicating the sub-unit for which information is to be obtained |
|
typeNum |
out |
pointer to variable to receive type code |
|
voltage |
out |
pointer to variable to receive voltage rating |
|
current |
out |
pointer to variable to receive current rating |
|
precision |
out |
pointer to variable to receive precision (the number of bits resolution - for programmable supplies only) |
|
capabilities |
out |
pointer to variable to receive capability flags - see below |
Return Value
0 = Successful operation. Negative values are error codes and positive values are warnings. To get a description of the error, pass the error code to pipx40_error_message.
Description
Obtains a type description of a power supply sub-unit, as numeric values.
Power supply sub-unit type codes are:
|
Driver constant |
typeNum value |
Description |
|
pipx40_TYPE_PSUDC |
9 |
Power supply, DC |
The capabilities value is the sum of a number of individual bit-flags, as follows:
|
Driver constant |
bit value - hexadecimal |
Description |
|
pipx40_PSU_CAP_CURRENT_MODE_SENSE |
00000010 |
Can sense if operating in current-limited mode |
|
pipx40_PSU_CAP_PROG_CURRENT |
00000008 |
Output current is programmable |
|
pipx40_PSU_CAP_PROG_VOLTAGE |
00000004 |
Output voltage is programmable |
|
pipx40_PSU_CAP_OUTPUT_SENSE |
00000002 |
Has logic-level sensing of output active state |
|
pipx40_PSU_CAP_OUTPUT_CONTROL |
00000001 |
Has output on/off control |
Certain driver functions are only usable with power supply sub-units having appropriate capabilities - examples being: