eod

bake_out_ctrl/bake_out_ctrl.ino

@@ -60,6 +60,9 @@ IPAddress ip(192, 168, 98, 134);
 EthernetServer server(PORT);
 String cmd, param;
 
+// run
+unsigned long start_time = 0;
+
 // 0-10V out ---
 int analogOutPercent0 = 0;   // initial value 0-100 percent
 
@@ -96,6 +99,25 @@ unsigned long get_abs_seconds() {
   int minute = Controllino_GetMinute();
   int second = Controllino_GetSecond();
   return second + minute*MINTOSECOND + hour*HOURTOSECOND + day*DAYTOSECOND;
+
+}
+
+unsigned long set_start_seconds(String cmd) {
+  if (cmd == "now"){
+    start_time = get_abs_seconds();
+  }
+  if (cmd == "reset"){
+    start_time = 0;
+  }
+    return start_time;
+}
+
+unsigned long get_rel_seconds() {
+  if (start_time == 0) {
+    return 0;
+  } else {
+    return get_abs_seconds() - start_time;
+  }
 }
 
 float get_current_temperature() {
@@ -122,22 +144,28 @@ unsigned long get_t3(){
 
 char get_current_state() {
   char state                 = 'n'; //u<n>defined
-  unsigned long current_time = get_abs_seconds();
-  unsigned long t1           = get_t1();
-  unsigned long t2           = get_t2();
-  unsigned long t3           = get_t3();
-
-  if(current_time < t1) {
-    state = 'u'; // ramp <u>p
-  }
-  if(current_time > t1 && current_time < t2) {
-    state = 'b'; // <b>akeout
-  }
-  if(current_time > t2 && current_time < t3) {
-    state = 'd'; // ramp <d>own'
-  }
-  if(current_time > t3) {
-    state = 'e'; // <e>nd hold
+  unsigned long rel_time = get_rel_seconds();
+  unsigned long abs_time = get_abs_seconds();
+
+  unsigned long t1       = get_t1();
+  unsigned long t2       = get_t2();
+  unsigned long t3       = get_t3();
+
+  if (start_time == 0 || abs_time < start_time) {
+    state = 'w'; // waiting for start
+  } else {
+    if(rel_time  < t1) {
+      state = 'u'; // ramp <u>p
+    }
+    if(rel_time > t1 && rel_time < t2) {
+      state = 'b'; // <b>akeout
+    }
+    if(rel_time > t2 && rel_time < t3) {
+      state = 'd'; // ramp <d>own'
+    }
+    if(rel_time > t3) {
+      state = 'e'; // <e>nd hold
+    }
   }
   return state;
 }
@@ -169,21 +197,24 @@ float get_target_temperature() {
   unsigned long t1          = get_t1();
   unsigned long t2          = get_t2();
   unsigned long t3          = get_t3();
-  unsigned long curr_time   = get_abs_seconds();
+  unsigned long rel_time    = get_rel_seconds();
   char state                = get_current_state();
-  float target_temp         = 0.0;
+  float target_temp         = curr_temp;
 
   switch(state){
     case 'n':
       break;
+    case 'w':
+      target_temp =  curr_temp;
+      break;
     case 'u':
-      target_temp = ROOMTEMP+TEMPSLOPEPERHOUR*curr_time/HOURTOSECOND;
+      target_temp = ROOMTEMP+TEMPSLOPEPERHOUR*rel_time/HOURTOSECOND;
       break;
     case 'b':
       target_temp = TARGETTEMPHIGH;
       break;
     case 'd':
-      target_temp = TARGETTEMPHIGH-TEMPSLOPEPERHOUR*(curr_time-t2)/HOURTOSECOND;
+      target_temp = TARGETTEMPHIGH-TEMPSLOPEPERHOUR*(rel_time-t2)/HOURTOSECOND;
       break;
     case 'e':
       target_temp = TARGETTEMPEND;
@@ -192,11 +223,18 @@ float get_target_temperature() {
   return target_temp;
 }
 
-void set_over_temperature(bool s) {
-    digitalWrite(CONTROLLINO_D7, s);
+
+void set_break_temperature(bool s) {
+    digitalWrite(CONTROLLINO_D6, s);
 }
 void set_under_temperature(bool s) {
-    digitalWrite(CONTROLLINO_D6, s);
+    digitalWrite(CONTROLLINO_D7, s);
+}
+void set_over_temperature(bool s) {
+    digitalWrite(CONTROLLINO_D8, s);
+}
+void set_max_temperature(bool s) {
+    digitalWrite(CONTROLLINO_D9, s);
 }
 
 float get_rel_heatpower(float targ_temp, float curr_temp) {
@@ -205,6 +243,14 @@ float get_rel_heatpower(float targ_temp, float curr_temp) {
     float upper_limit = targ_temp+BREAKDEVTEMP;
     float lower_limit = targ_temp-BREAKDEVTEMP;
 
+    if(curr_temp <= BREAKTEMP) {
+      set_break_temperature(true);
+      p = 0.0;
+    }
+    if(curr_temp >= MAXTEMP) {
+      set_max_temperature(true);
+      p = 0.0;
+    }
     if(curr_temp >= upper_limit) {
       set_over_temperature(true);
       p = 0.0;
@@ -224,10 +270,8 @@ float get_rel_heatpower(float targ_temp, float curr_temp) {
     return p;
 }
 
-
-
 void write_info_serial(char st, unsigned long se, float ct, float tt, float hp) {
-  Serial.print("current state is (u:ramp up, b: bake out, d:ramp down, e: end hold): ");
+  Serial.print("current state is (w: waiting for start time, u:ramp up, b: bake out, d:ramp down, e: end hold): ");
   Serial.print(st);
   Serial.println("\n");
 
@@ -265,8 +309,8 @@ void net_read(){
         if (c == '\n') {
           client.println(net_exec(cmd, param));
           client.stop();
-          cmd="";
-          param="";
+          cmd = "";
+          param = "";
           break;
         }
 
@@ -288,21 +332,33 @@ String net_exec(String cmd, String param) {
   }
 
   if( cmd == "runtime") {
-    res = String(get_abs_seconds());
+    res = String(get_rel_seconds());
   }
+
   if (cmd == "heatpower") {
     float ct  = get_current_temperature();
     float tt  = get_target_temperature();
     float hp  = get_rel_heatpower(tt, ct);
     res       = String(hp);
   }
-return res;
+
+  if (cmd == "run") {
+    unsigned long st = set_start_seconds("now");
+    res = String(st);
+  }
+
+  if( cmd == "stop"){
+    unsigned long st = set_start_seconds("reset");
+    res = String(st);
+  }
+
+  return res;
 }
 
 void loop() {
 
   char st           = get_current_state();
-  unsigned long se  = get_abs_seconds();
+  unsigned long se  = get_rel_seconds();
   float ct          = get_current_temperature();
   float tt          = get_target_temperature();
   float hp          = get_rel_heatpower(tt, ct);