source: trunk/sample/miscellaneous/sample_timer.mso @ 992

Last change on this file since 992 was 926, checked in by Rafael de Pelegrini Soares, 12 years ago

Added a simple open/close timer sample

File size: 587 bytes
Line 
1
2using "types";
3
4FlowSheet sample_timer
5    PARAMETERS
6    Timer as Switcher(Valid = ["closed", "opened"], Default = "closed");
7       
8        TimeOpened as time_sec;
9        TimeClosed as time_sec;
10
11        VARIABLES
12        Clock as Real;
13        flow as flow_vol;
14       
15        SET
16        TimeOpened = 2*'s';
17        TimeClosed = 4*'s';
18       
19    EQUATIONS
20
21    switch Timer
22        case "closed":
23                flow = 0 * 'm^3/h';
24               
25                diff(Clock) = 1/TimeClosed;
26                when Clock > 1 switchto "opened";
27
28        case "opened":
29                flow = 1 * 'm^3/h';
30               
31                diff(Clock) = -1/TimeOpened;
32                when Clock < 0 switchto "closed";
33        end
34       
35        INITIAL
36        Clock = 0;
37       
38        OPTIONS
39        TimeStep = 0.1;
40end
41
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