Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 290)

4.6-12 Daq API Command Reference
908594
Programmer’s Manual
Option Type and Value Definitions -- DaqOptionType
WBK16 Options
Option Type
(optionType)
Description Option Value
(optionValue)
Description
DcovWbk16ApplyFull Selects Full Bridge
DcovWbk16ApplyHalfQtrPos
Selects Half-Bridge/
Quarter-Bridge
DcotWbk16Bridge
Selects the type of bridge
configuration.
For diagrams and related
text, refer to the
WaveBook User’s
Manual (p/n 481-0901).
DcovWbk16ApplyNone normal reading, no shunt
DcovWbk16Apply120
Apply 120 ohm shunt – B
Shunts are not pre-installed.
DcovWbk16Apply350
Apply 350 ohm shunt – D
Shunts are not pre-installed.
DcovWbk16Apply1K
Apply 1 K ohm shunt – F
Shunts are not pre-installed.
DcotWbk16ShuntCal
Used to select the shunt
value for internal shunt-
calibration resistors. The
shunt resistors are not pre-
installed.
In regard to shunt setup,
refer to the WaveBook
User’s Manual
(p/n 481-0901).
DcovWbk16AutoZero apply short (0 ohm)
DcotWbk16InDiag Sets input diagnostics. DcovWbk16ReadNone
Sets diagnostics for reading
input signals.
DcotWbk16OffsetDac
Sets the Dac Offset
relative to input.
0.0 to 4095.0 See Note 2.
See Note 2 at end of
WBK16 Table.
DcovWbk16Normal Normal signal polarity.
DcovWbk16Inverted Inverts signal polarity. DcotWbk16Inv
Used to select normal
signal polarity, or to
invert the polarity, if
desired.
DcovWbk16FltBypass Bypasses the filter
DcovWbk16Flt10Hz Enables 10 Hz filter
DcovWbk16Flt1Khz Enables 1 K Hz filter
DcotWbk16FilterType
Used to bypass the single-
pole low-pass filter
(LPF), or set it to one of
two cut-off frequencies:
10 Hz to reduce high
frequency noise; or
1K Hz for anti-aliasing &
slight noise rejection
while maintaining
moderate bandwidth.
DcovWbk16CoupleDC Selects DC Coupling
DcovWbk16CoupleAC Selects AC Coupling
DcotWbk16Couple
Sets the input coupling.
Use AC coupling to reject
unwanted DC offsets.
Use DC coupling when
both AC and DC
components are to be
presented to the
comparator as input.
DcovWbk16Bypassed Bypasses SSH function
DcotWbk16Sample
Used to bypass or to
enable the WBK16’s
Simultaneous Sample and
Hold (SSH) function.
DcovWbk16Ssh
Enables the SSH function
(for WBK16 only)
DcovWbk16Exc0_0 Selects 0.0 V
DcovWbk16Exc0_5 Selects 0.5 V
DcovWbk16Exc1_0 Selects 1.0 V
DcovWbk16Exc2_0 Selects 2.0 V
DcovWbk16Exc5_0 Selects 5.0 V
DcotWbk16ExcDac
Used to select the
calibrated excitation DAC
values for WBK16.
DcovWbk16Exc10_0 Selects 10.0 V
DcovWbk16X1 Sets IAG gain to: x 1
DcovWbk16X10 Sets IAG gain to: x 10
DcovWbk16X100 Sets IAG gain to: x 100
DcovWbk16X1000 Sets IAG gain to: x 1000
DcotWbk16IAG
Provides gain definitions
for the WBK16 IAG
(Instrumentation
Amplifier Gain).
See Note 1 regarding
Voltage Out & Total
Gain.