Omega OMB-DAQBOARD-3000 Manuale Utente

In the example [upper portion of the preceding figure], the setpoint placed on analog Channel 5 updated 
DAC1 with 0.0V.  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 minus1.0V.  

Control outputs can be programmed on each setpoint.  Detection for Channel 4 could be used to update the 
P2C digital output port with one value (70h 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 (30h in the 
example). 

 

Update Mode: Update on True and False 
Criteria Used: Inside Window

 
The figure below shows how a setpoint can be used to update a timer output.  Channel 23 is an analog 
input channel.  It could be any analog input channel but in this example it happens to be on a PDQ30 
expansion module.  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 23 analog input voltage is inside the setpoint window (condition True), timer0 will 
be updated with one value; and whenever the Channel 23 analog input voltage is outside the setpoint 
window (condition False) timer0 will be updated with a second output value. 
 

Limit A 

(for Channel 23) 

 

Limit B 

(for Channel 23) 

 

 

 

 

 

Detection Signal 

 

Timer0

 

 

 
 

6-8   Setpoint Configuration for Output Control 

908794 

DaqBoard/3000 Series User’s Manual