Mercurial > mbsePi-apps / file comparison
comparison: thermferm/pid.h
thermferm/pid.h
- changeset 362
- c92651a54969
- parent 316
- 73cd31dc6ce1
- child 363
- 468ec0d96cce
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| 361:308f6a436779 | 362:c92651a54969 |
|---|---|
| 1 #ifndef PID_H | 1 #ifndef PID_H |
| 2 #define PID_H | 2 #define PID_H |
| 3 | 3 |
| 4 #define PID_MODE_NONE 0 /* Process control off */ | |
| 5 #define PID_MODE_AUTO 1 /* Process control auto */ | |
| 6 #define PID_MODE_BOO 2 /* Process control Bang On/Off */ | |
| 7 | |
| 8 #define PID_TYPE_HEAT 0 /* PID is used for heating */ | |
| 9 #define PID_TYPE_COOL 1 /* PID is used for cooling */ | |
| 10 | |
| 11 #define PID_TIMES 60 /* 60 calculations per minute */ | |
| 12 | |
| 13 | |
| 4 typedef struct _pid_var { | 14 typedef struct _pid_var { |
| 5 double iState; /* Integrator state */ | 15 double iMax; /* Maximum allowable integrator state */ |
| 6 double dState; /* Last measured value input */ | 16 double iGain; /* Integral gain */ |
| 7 double iMax; /* Maximum allowable integrator state */ | 17 double pGain; /* Proportional gain */ |
| 8 double iMin; /* Minimum allowable integrator state */ | 18 double dGain; /* Derivative gain */ |
| 9 double iGain; /* Integral gain */ | 19 double idleRange; /* Idle range */ |
| 10 double pGain; /* Proportional gain */ | 20 |
| 11 double dGain; /* Derivative gain */ | 21 double Input; /* Input value */ |
| 22 double InputD; /* Process input plus derivative */ | |
| 23 double InputLast; /* Process input from last pass */ | |
| 24 double Err; /* Error, diff between input and set point */ | |
| 25 double ErrLast; /* Error from last pass */ | |
| 26 double ErrLastLast; /* Error from next last pass */ | |
| 27 double SetP; /* Set point */ | |
| 28 double OutP; /* Output of PID algorithm */ | |
| 29 int Mode; /* Value is 'PID_AUTO' if loop is automatic */ | |
| 30 int Type; /* Value is 'HEAT' or 'COOL' */ | |
| 12 } pid_var; | 31 } pid_var; |
| 13 | 32 |
| 14 | 33 |
| 15 double UpdatePID( pid_var *, double, double); | 34 void InitPID( pid_var *, int); |
| 35 void UpdatePID( pid_var *); | |
| 16 | 36 |
| 17 #endif | 37 #endif |
