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In order to simulate the function block for the temperature sensor, a global variable list is created. It contained the following variables,

•  sensor_read:REAL;

  
  

•  set_point_in_c:REAL;

  
  

• alarm_delay:TIME:=T#2S;

  
  

• alarm_dead_zone:REAL:=1;

  
  

• max_temp:REAL:=200;

  
  

• max_temp_in_volts:REAL:=10;

  
  

• min_temp:REAL:=-30;

  
  

• min_temp_in_volts:REAL:=0;

  
  

• alarm_high:BOOL;

  
  

• alarm_low:BOOL;

  
  

• temp_read_in_c:REAL;

A temperature function block was created in the program, which looked like the following,

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Then the visualizer for the simulator was created and looked like this,

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Witht the two states for too high temperature and too low temparture shown below,

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