I want to use servo motor to move measurement sensor.

and I need some ideas to do it...

I want servo turn many times move left or move right...

when I use pulsout command , which values should I send to servo.

I tried it in proteus and when I send 100, it moved 90 degree left and 150 moved center(0 degree) and 200: moved 90degree right???
but I want it turn many times not 90 degree

sorry for my poor english, I hope I can explain my problem