Output of two aquare wave genrator

I am using two Square wave generator with same Frequency say 10 Hz and all same parameters accept Phase shift.
If i put 180 deg. Phase shift to one and 0 for another.
My problume is that the out put are in same phase.
What is the resion behind it.
regards
Attachments:
savi.lvproj ‏52 KB

Hello,
project is empty
vi containing both generators could be sufficient ?
Tinnitus
CLAD / Labview 2011, Win Xp
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