matth-x
setEnergyMeterInput([]() {}) and addMeterValueInput([](){return 10;}
Hi @matth-x
Can you please tell me the difference between the setEnergyMeterInput( {}); and addMeterValueInput({return 10;}
/* * Integrate OCPP functionality. You can leave out the following part if your EVSE doesn't need it. */ setEnergyMeterInput( { //take the energy register of the main electricity meter and return the value in watt-hours
return 10.f;
});
addMeterValueInput({return 10;}, "Power.Active.Import", "kW", nullptr, nullptr, 1);
Hi @matth-x After following this #110 I am trying to send the energy meter value to the cms I am able to send the kwh and kw. but i am not able to send voltage and current i followed #110 even then cms not getting the voltage and current value. below is the code pls correct me.
/Below in the logs you can see that there are two warnings as [AO] warning (MeteringService.cpp:73): could not find metering device for Current.Import [AO] warning (ChangeConfiguration.cpp:153): validation failed for key=MeterValuesSampledData value=Current.Import,Current.Offered,Energy.Active.Import.Register,Power.Active.Import,Voltage why I am getting these warning how it can find metering device where to putt this???/ How I can correct this??
// matth-x/MicroOcpp // Copyright Matthias Akstaller 2019 - 2023 // MIT License
#include <Arduino.h> #if defined(ESP8266) #include <ESP8266WiFi.h> #include <ESP8266WiFiMulti.h> ESP8266WiFiMulti WiFiMulti; #elif defined(ESP32) #include <WiFi.h> #else #error only ESP32 or ESP8266 supported at the moment #endif
#include <ArduinoOcpp.h> #include <ArduinoOcpp/Core/Configuration.h>
bool connectorPlugged = false; //example for the variable where you keep the connector state void setup() {
/*
* Initialize Serial and WiFi
*/
Serial.begin(115200);
Serial.print(F("[main] Wait for WiFi: "));
#if defined(ESP8266) WiFiMulti.addAP(STASSID, STAPSK); while (WiFiMulti.run() != WL_CONNECTED) { Serial.print('.'); delay(1000); } #elif defined(ESP32) WiFi.begin(STASSID, STAPSK); while (!WiFi.isConnected()) { Serial.print('.'); delay(1000); } #else #error only ESP32 or ESP8266 supported at the moment #endif
Serial.println(F(" connected!"));
/*
* Initialize the OCPP library
*/
ocpp_initialize(OCPP_HOST, OCPP_PORT, OCPP_URL, "J1", "Tronic");
/*
* Integrate OCPP functionality. You can leave out the following part if your EVSE doesn't need it.
*/
setEnergyMeterInput([]() {
//take the energy register of the main electricity meter and return the value in watt-hours
return 10.f;
});
addMeterValueInput({return 10;}, "Power.Active.Import", "kW", nullptr, nullptr, 1); addMeterValueInput({return 100;}, "Energy.Active.Import.Register", "kWh", nullptr, nullptr, 1); addMeterValueInput({ return 10; },"Current.import","A"); addMeterValueInput({return 120;}, "Voltage", "V", nullptr, "L1", 1);
std::shared_ptr<ArduinoOcpp::Configuration<const char *>> mvSampledData = ArduinoOcpp::declareConfiguration<const char *>( "MeterValuesSampledData", "", CONFIGURATION_FN); const char *example = *mvSampledData; //example: read value of configuration *mvSampledData = "Power.Active.Import,Energy.Active.Import.Register,Voltage,Current.Import"; //example: update configuration value ArduinoOcpp::configuration_save(); //write configs file back to flash immediately (not really necessary though)
setSmartChargingCurrentOutput([](float limit) { //set the SAE J1772 Control Pilot value here Serial.printf("[main] Smart Charging allows maximum charge rate: %.0f\n", limit); });
}
void loop() {
/*
* Do all OCPP stuff (process WebSocket input, send recorded meter values to Central System, etc.)
*/
ocpp_loop();
//startTransaction("0123456789ABCD"); /* * Energize EV plug if OCPP transaction is up and running */ if (ocppPermitsCharge()) { /status updated to charging/ //OCPP set up and transaction running. Energize the EV plug here
} else { /*status updated to finishing*/
//No transaction running at the moment. De-energize EV plug
}
/*
* Use NFC reader to start and stop transactions
*/
if (/* RFID chip detected? */ false) {
String idTag = "0123456789ABCD"; //e.g. idTag = RFID.readIdTag();
if (!getTransaction()) {
//no transaction running or preparing. Begin a new transaction
Serial.printf("[main] Begin Transaction with idTag %s\n", idTag.c_str());
/*
* Begin Transaction. The OCPP lib will prepare transaction by checking the Authorization
* and listen to the ConnectorPlugged Input. When the Authorization succeeds and an EV
* is plugged, the OCPP lib will send the StartTransaction
*/
auto ret = beginTransaction(idTag.c_str());
if (ret) {
Serial.println(F("[main] Transaction initiated. OCPP lib will send a StartTransaction when" \
"ConnectorPlugged Input becomes true and if the Authorization succeeds"));
} else {
Serial.println(F("[main] No transaction initiated"));
}
} else {
//Transaction already initiated. Check if to stop current Tx by RFID card
if (idTag.equals(getTransactionIdTag())) {
//card matches -> user can stop Tx
Serial.println(F("[main] End transaction by RFID card"));
endTransaction();
} else {
Serial.println(F("[main] Cannot end transaction by RFID card (different card?)"));
}
}
}
}
Pls find Logs below
[main] Wait for WiFi: . connected! [AO] info (Connection.cpp:56): Connected to url: /ocpp16/205894 [AO] info (BootNotification.cpp:83): request has been Accepted [AO] info (StatusNotification.cpp:49): New status: Available (connectorId 0) [AO] info (StatusNotification.cpp:49): New status: Available (connectorId 1) [AO] info (SmartChargingService.cpp:523): New limit for connector 1, scheduled at = 2023-09-06T15:28:41.193Z, nextChange = 2037-01-01T00:00:00.000Z, limit = {-1.000000,-1.000000,-1} [AO] warning (MeteringService.cpp:73): could not find metering device for Current.Import [AO] warning (ChangeConfiguration.cpp:153): validation failed for key=MeterValuesSampledData value=Current.Import,Current.Offered,Energy.Active.Import.Register,Power.Active.Import,Voltage [AO] info (TriggerMessage.cpp:29): Execute for message type StatusNotification, connectorId = -1 [AO] info (StatusNotification.cpp:49): New status: Available (connectorId 0) [AO] info (StatusNotification.cpp:49): New status: Available (connectorId 1) [AO] info (Connector.cpp:224): Session mngt: trigger StartTransaction [AO] info (StartTransaction.cpp:48): StartTransaction initiated [AO] info (StatusNotification.cpp:49): New status: Charging (connectorId 1) [AO] info (StartTransaction.cpp:142): Request has been accepted
For unable to send voltage and current, update the highlighted code in the MeteringService.cpp.
Same issue. My addMeterValueInput functions don't add anything to the Meter Value request that is sent. Can't send Voltage and Current values. Any idea?
