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3.3.3.3
usb_tc08_get_single
short usb_tc08_get_single
(
short handle,
float * temp,
short * overflow_flags,
short units
)
You must set up the channels before calling this function. You must not have put the
unit into Streaming mode with usb_tc08_run, as this will cause
usb_tc08_get_single to fail. The function will convert all readings on demand. For
more details and an example see the Get Single mode section.
Arguments
handle
Specifies the USB TC-08 unit.
temp
Pointer to an array of length [9]. There are 9
channels on the USB TC-08 (8 + cold junction) and
the readings are always placed in the array
subscript corresponding to the channel number.
Channels which are not enabled are filled with
QNaN values.
overflow_flags
Pointer to a variable containing a set of bit flags
that are set high when an overflow occurs on a
particular channel. An overflow occurs when the
input signal is higher than the measuring range of
the USB TC-08.
The lowest significant bit (bit 0) represents channel
0 (the cold juction channel) and bit 8 represents
channel 8 (the last thermocouple channel). Bitwise
comparisons should be performed to determine the
overflow state of each channel.
units
Specifies the temperature units for returned data:
0: USBTC08_UNITS_CENTIGRADE
1: USBTC08_UNITS_FAHRENHEIT
2: USBTC08_UNITS_KELVIN
3: USBTC08_UNITS_RANKINE
Returns
0
An error occurred, use usb_tc08_get_last_error to
get the code.
1
The function succeeded.