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© National Instruments Corp. 7 FP-PG-522 and cFP-PG-522
A channel set to Continuous mode must be switched to Finite mode
in order to stop pulse generation. When switched to Finite mode
from Continuous mode, a channel finishes generating the current
pulse and then stops.
On Time
The On Time attribute for a channel controls the duration of the
pulses the channel generates. On Time can be any integer from
1 to 65,535. Configure the Resolution attribute for the channel to
set the units for On Time and Off Time.
Off Time
The Off Time attribute for a channel controls the amount of time
between pulses. Off Time can be any integer from 0 to 65,535. The
Resolution attribute for the channel determines the units for Off
Time and On Time.
Resolution
The Resolution attribute determines the units for On Time and
Off Time. Possible Resolution values are 1 s, 10 ms, and 100 µs.
The multiple Resolution settings enable you to generate short,
high-precision pulses on some channels and long pulses on others.
Changing Settings During Pulse Generation
If a channel is actively generating pulses in either Continuous or
Finite mode, changes to On Time, Off Time, and Resolution
settings take effect after the current pulse is finished.
Calculating On Time and Off Time
Table 3 lists the maximum On Time or Off Time for each
Resolution setting. In general, you should select the smallest
Resolution that allows the [c]FP-PG-522 to generate the necessary
pulses.
Table 3. On Time and Off Time Maximum Values
Resolution Max On or Off Time Divide By
100 µs 6.5535 s 0.0001
10 ms 655.35 s 0.01
1 s 65,535 s 1