Comparison of analog signal with FX3-4AD

[UltraSound 0]

Hi everyone! I have this simple problem, but cant get over it. I have structured ladder/FBD Project and i use GX works2. As topic tells I use analog signal from field. Now, i need to compare this value X (from field) to Values X1 and X2, meaning if value X is between values X1 and X2 then M1 is true. Ok, but what function i need to use for this? Best regards, Juha.

[UltraSound 0]

Hi experts! I was trying to use GT_E function, but it seems to leave that output to True mode once comparision gone TRUE. What would be perfect, is that once signal value changes will the output change also. - Juha

[UltraSound 0]

Ok, Finaly found the solution for this. Answer is to use GT_E but you need to uncheck the check box in tools, where you can deside if GT* is used as SET or COIL output. As rookie I can learn lots of new things :P

[Gambit 222]

The problem you have is that the PLC will only checkt the GT if the enable is true. If you don't want that you should use the GT without _E (Without Enable).