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You could use a counter to count 60 seconds and then another counter to count the 2 minutes. A second can be achieved by Pause 1000

something like this would work

Code:
  Turn on the output

   for minutes = 1 to 2
        for seconds = 1 to 60
            pause 1000
        next
   next

  Turn off the output
There may be other ways to achieve the same result.

Good luck