hello, I am a student from Harbin Institute of Technology in China, and I got some problems I have beeing study your Compass Toolset recently, and I got the version compass 20110610 , and I write a small test with slim language. however , I can't get results that I want. The test is system sensor features warning: out event port; switch: in event port; end sensor; system implementation sensor.Impl subcomponents power: data real default 6.0; modes Off: activation mode; On: mode; transitions Off -[switch]-> On; On -[then power := power*0.8]-> On; On -[warning when power <= 0.5]-> Off; end sensor.Impl; The result is that when I simulate the test in tab correctness, on the step 16, the mode should have changed to Off, But it didn't. That's what's the problem is. I will be very grateful for your help; Another questions is why when I use examples in compass-mannual ,the toolset gives some sytanx wrongs, which occurs on the variable energy’ 姓名：胡连亚 学院：计算机科学与技术学院 联系电话：18945015506