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USB-1616HS-2 User's Guide Functional Details
39
Figure 26. Analog inputs with setpoints update on True and False
In the channel 5 example, the setpoint placed on analog Channel 5 updated DAC1 with 0.0 V. The update
occurred when channel 5's input was less than the setpoint (limit A). When the value of channel 5's input was
above setpoint limit A, the condition of <A was false and DAC1 was then updated with -1.0 V.
You can program control outputs programmed on each setpoint, and use the detection for channel 4 to update
the FIRSTPORTC digital output port with one value (70 h in the example) when the analog input voltage is
within the shaded region and a different value when the analog input voltage is outside the shaded region (30 h
in the example).
Detection on an analog input, timer output updates
Update Mode: Update on True and False
Criteria Used: Inside window
Figure 27 shows how a setpoint can be used to update a timer output. Channel 3 is an analog input channel. A
setpoint is applied using update on True and False, with a criteria of inside-the-window, where the signal value
is inside the window when simultaneously less than Limit A but greater than Limit B.
Whenever the channel 3 analog input voltage is inside the setpoint window (condition True), Timer0 is updated
with one value; and whenever the channel 3 analog input voltage is outside the setpoint window (condition
False) timer0 will be updated with a second output value.