©
National Instruments Corporation
7
NI 6711/6713/6731/6733 Calibration Procedure
5.
Call
AO_Configure
to configure the device for the appropriate device
number, channel, and output polarity (the NI 6711/6713/6731/6733
devices support only bipolar output range). Use channel 0 as the
channel to verify. Read the remaining settings from the specification
table for the device.
6.
Call
AO_VWrite
to update the AO channel with the appropriate
voltage. The voltage value is in the specification table.
7.
Compare the resulting value shown by the DMM to the upper and
lower limits on the specification table. If the value falls between these
limits, the device has passed the test.
8.
Repeat steps 3 through 5 until you have tested all values.
9.
Disconnect the DMM from DAC0OUT, and reconnect it to the next
channel, making the connections from Table 1.
10. Repeat steps 3 through 9 until you have verified all channels.
11. Disconnect the DMM from the device.
You have now verified the AO channels of the device.
Verifying the Performance of the Counter
This procedure verifies the performance of the counter. The
NI 6711/6713/6731/6733 devices have only one timebase to verify, so you
only need to verify counter 0. Because you cannot adjust this timebase, you
can only verify the performance of counter 0. Make sure that you have read
the
Equipment and Other Test Requirements
section, and then follow this
procedure:
1.
Connect the counter positive input to GPCTR0_OUT (pin 2) and the
counter negative input to DGND (pin 35).
Note
Pin numbers are given for 68-pin I/O connectors only. If you are using a 50-pin
I/O connector, refer to the device documentation for signal connection locations.
2.
Call
GPCTR_Control
with
action
set to
ND_RESET
to place the
counter in a default state.
3.
Call
GPCTR_Set_Application
with
application
set to
ND_PULSE_TRAIN_GNR
to configure the counter for pulse-train
generation.
4.
Call
GPCTR_Change_Parameter
with
paramID
set to
ND_COUNT_1
and
paramValue
set to
2
to configure the counter to output a pulse
with an off time of 100 ns.
5.
Call
GPCTR_Change_Parameter
with
paramID
set to
ND_COUNT_2
and
paramValue
set to
2
to configure the counter to output a pulse
with an on time of 100 ns.
