Program the offset until a valid pressure reading between 50 to 150

Question

i am working on a project to make the current process automated.
the system is currently working as follow.
when the system gets into manual programming mode, the front panel display
Mode =1
PressA Gain = 7
Offset = 0
when I want to program a device for instant..
i would type in
Program Rev1=No Parm=Mode Mode=1 N_5kOpt=1 IegmGn=1 Spare=1 ;
Program Rev1=No Parm=PressA Offset=0 Gain=7 ;
if my offset is 0 and the valid pressure reading is between 50-150, then i would use that offset.
if my valid pressure = 511 and i want to get my valid pressure to be 50-150, i would do something like this..
511-80=431
431-80=351
351-80=271
271-80=191
191-80=111   YES
i want to get 111 because it is between 50-150.
lets say that i have a chart of the offset
Offset   Valid Pressure
3B          511
3C          431
3D          351
3E          271
3F          191
0            111
There is a total of 64 offsets
If the valid pressure is NaN = 0
currently, i would type in
Program Rev1=No Parm=PressA Offset=3F Gain=7 ;
check valid pressure value to see if its between 50-150;
if it is not, go up or down in the chart to get a valid pressure.
Program Rev1=No Parm=PressA Offset=3E Gain=7 ;
check valid pressure value to see if its between 50-150;
if it is not, go up or down in the chart to get a valid pressure.
Program Rev1=No Parm=PressA Offset=3D Gain=7 ;
would anyone got an idea of how to approach this algorithm?
Message Edited by krispiekream on 03-24-2008 05:30 PM
Best regards,
Krispiekream
Attachments:
untitled.PNG ‏24 KB

Answer 1

I found out how to do this method,
but i am facing one problem..
can someone help me solve this...
i only want to use the first call only once..yet it is always true once its true one time..
Message Edited by krispiekream on 03-26-2008 03:21 PM
Best regards,
Krispiekream
Attachments:
true once.PNG ‏20 KB
autoconst.vi ‏279 KB