add HIU

src/device_library.h

@@ -48,7 +48,7 @@
 {208, DeviceType::BOILER, "Logamax Plus/GB192/Condens GC9000/Greenstar ErP", DeviceFlags::EMS_DEVICE_FLAG_NONE},
 {210, DeviceType::BOILER, "Cascade MC400", DeviceFlags::EMS_DEVICE_FLAG_NONE},
 {211, DeviceType::BOILER, "EasyControl Adapter", DeviceFlags::EMS_DEVICE_FLAG_NONE},
-{219, DeviceType::BOILER, "Greenstar HIU", DeviceFlags::EMS_DEVICE_FLAG_NONE},
+{219, DeviceType::BOILER, "Greenstar HIU", DeviceFlags::EMS_DEVICE_FLAG_HIU},
 {234, DeviceType::BOILER, "Logamax Plus GB122/Condense 2300", DeviceFlags::EMS_DEVICE_FLAG_NONE},
 
 // Controllers - 0x09 / 0x10 / 0x50

src/devices/boiler.cpp

@@ -86,6 +86,26 @@ Boiler::Boiler(uint8_t device_type, int8_t device_id, uint8_t product_id, const
         register_telegram_type(0x49D, "HPSettings3", true, MAKE_PF_CB(process_HpSettings3));
     }
 
+    if (model() == EMSdevice::EMS_DEVICE_FLAG_HIU) {
+        register_telegram_type(0x772, "HIUSettings", false, MAKE_PF_CB(process_HIUSettings));
+        register_telegram_type(0x779, "HIUMonitor", false, MAKE_PF_CB(process_HIUMonitor));
+
+        register_device_value(DeviceValueTAG::TAG_DEVICE_DATA,
+                              &keepWarmTemp_,
+                              DeviceValueType::UINT,
+                              FL_(keepWarmTemp),
+                              DeviceValueUOM::DEGREES,
+                              MAKE_CF_CB(set_keepWarmTemp));
+        register_device_value(DeviceValueTAG::TAG_DEVICE_DATA,
+                              &setReturnTemp_,
+                              DeviceValueType::UINT,
+                              FL_(setReturnTemp),
+                              DeviceValueUOM::DEGREES,
+                              MAKE_CF_CB(set_returnTemp));
+        register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &cwFlowRate_, DeviceValueType::USHORT, FL_(cwFlowRate), DeviceValueUOM::LMIN);
+        register_device_value(DeviceValueTAG::TAG_DEVICE_DATA, &netFlowTemp_, DeviceValueType::USHORT, FL_(netFlowTemp), DeviceValueUOM::DEGREES);
+    }
+
     /*
     * Hybrid heatpump with telegram 0xBB is readable and writeable in boiler and thermostat
     * thermostat always overwrites settings in boiler
@@ -1570,6 +1590,39 @@ void Boiler::process_HpSettings3(std::shared_ptr<const Telegram> telegram) {
     has_update(telegram, elHeatStep3_, 9);
 }
 
+// HIU unit
+
+// boiler(0x08) -B-> All(0x00), ?(0x0779), data: 06 05 01 01 AD 02 EF FF FF 00 00 7F FF
+void Boiler::process_HIUMonitor(std::shared_ptr<const Telegram> telegram) {
+    has_update(telegram, netFlowTemp_, 5); // is * 10
+    has_update(telegram, cwFlowRate_, 9);  // is * 10
+}
+
+// Boiler(0x08) -W-> ME(0x0x), ?(0x0772), data: 00 00 00 00 00
+void Boiler::process_HIUSettings(std::shared_ptr<const Telegram> telegram) {
+    has_update(telegram, keepWarmTemp_, 1);
+    has_update(telegram, setReturnTemp_, 2);
+}
+
+// HIU Settings
+bool Boiler::set_keepWarmTemp(const char * value, const int8_t id) {
+    int v;
+    if (!Helpers::value2temperature(value, v)) {
+        return false;
+    }
+    write_command(0x772, 1, v, 0x772);
+    return true;
+}
+
+bool Boiler::set_returnTemp(const char * value, const int8_t id) {
+    int v;
+    if (!Helpers::value2temperature(value, v)) {
+        return false;
+    }
+    write_command(0x772, 2, v, 0x772);
+    return true;
+}
+
 /*
  * Hybrid heatpump with telegram 0xBB is readable and writeable in boiler and thermostat
  * thermostat always overwrites settings in boiler

src/devices/boiler.h

@@ -252,6 +252,12 @@ class Boiler : public EMSdevice {
     uint8_t elHeatStep2_;
     uint8_t elHeatStep3_;
 
+    // HIU
+    uint16_t cwFlowRate_;  // cold water flow rate *10
+    uint16_t netFlowTemp_; // heat network flow temperature *10
+    uint8_t  keepWarmTemp_;
+    uint8_t setReturnTemp_;
+
     /*
   // Hybrid heatpump with telegram 0xBB is readable and writeable in boiler and thermostat
   // thermostat always overwrites settings in boiler
@@ -306,6 +312,12 @@ class Boiler : public EMSdevice {
     void process_HpDhwSettings(std::shared_ptr<const Telegram> telegram);
     void process_HpSettings2(std::shared_ptr<const Telegram> telegram);
     void process_HpSettings3(std::shared_ptr<const Telegram> telegram);
+    // HIU
+    void process_HIUSettings(std::shared_ptr<const Telegram> telegram);
+    void process_HIUMonitor(std::shared_ptr<const Telegram> telegram);
+
+    bool set_keepWarmTemp(const char * value, const int8_t id);
+    bool set_returnTemp(const char * value, const int8_t id);
 
     // commands - none of these use the additional id parameter
     bool        set_ww_mode(const char * value, const int8_t id);

src/emsdevice.h

@@ -381,6 +381,7 @@ class EMSdevice {
     static constexpr uint8_t EMS_DEVICE_FLAG_HT3      = 3;
     static constexpr uint8_t EMS_DEVICE_FLAG_HEATPUMP = 4;
     static constexpr uint8_t EMS_DEVICE_FLAG_HYBRID   = 5;
+    static constexpr uint8_t EMS_DEVICE_FLAG_HIU      = 6;
 
     // Solar Module
     static constexpr uint8_t EMS_DEVICE_FLAG_SM10  = 1;