However, only the fist I/O set moves when I turn on and off through teach pendant. If I click test button from the left window(Link1, UT:2), all I/O sets are working properly. Does anyone know why it doesn't work properly from teach pendant?
Thank you for your helps.
Are you asking why it doesn't display property in RoboGuide or on a real robot?
Your question is very vague.
Try executing it from a program through the run simulator, AKA the play button.
The highest ones have higher priority - while setting multiple positions, you shouldn't use off as default position. I know what you want to do - to trigger the motion with only positive or negative IMPULSE. I don't think it is possible in roboguide itself (in my opinion it should run through plc, but not necessary) - it uses actual state within its priority.
(I think I described it clearly)
Setting (with any order)
RO1 ON - 7
RO2 ON - 0
RO3 ON - 15
Should work fine.
Remember to turn it off after triggering. In real world I think you should use DOs (as well as DIs as position sensor which states can be stored in registers but its useless for logics). There are some tutorials on youtube of I/O that could help understanding it.
Hope it helped
woww it works perfect now. Thank you for your solution. 
