Template

OpenEMS

Name: OpenEMS
Author: Andreas Byfut

by Andreas ByfutNo rating yet875 downloads

Content languageEnglish

Updated May 5, 2025

Description

This template is written to facilitate reading all avaliable data from OpenEMS based devices such as the Fenecon Pro Hybrid 10 via Modbus TCP.

The implementation is based upon the official API documentation.

For the energy manager, use the virtual inputs:

- sum_GridActivePower for Gpwr - sum_ProductionActivePower for Ppwr - sum_EssDischargePower for Spwr - sum_EssSoc for Soc

Use other virtual inputs for other specific needs.

Name	Type	Unit
sum_State	Modbus	`<v>`
sum_EssSoc	Modbus	`%`
sum_EssActivePower	Modbus	`kW`
sum_GridActivePower	Modbus	`kW`
sum_GridMinActivePower	Modbus	`kW`
sum_GridMaxActivePower	Modbus	`kW`
sum_GridActivePowerL1	Modbus	`kW`
sum_GridActivePowerL2	Modbus	`kW`
sum_GridActivePowerL3	Modbus	`kW`
sum_ProductionActivePower	Modbus	`kW`
sum_ProductionMaxActivePower	Modbus	`kW`
sum_ProductionAcActivePower	Modbus	`kW`
sum_ProductionMaxAcActivePower	Modbus	`kW`
sum_ProductionDcActualPower	Modbus	`kW`
sum_ProductionMaxDcActualPower	Modbus	`kW`
sum_ConsumptionActivePower	Modbus	`kW`
sum_ConsumptionMaxActivePower	Modbus	`kW`
sum_EssActivePowerL1	Modbus	`kW`
sum_EssActivePowerL2	Modbus	`kW`
sum_EssActivePowerL3	Modbus	`kW`
sum_ProductionAcActivePowerL1	Modbus	`kW`
sum_ProductionAcActivePowerL2	Modbus	`kW`
sum_ProductionAcActivePowerL3	Modbus	`kW`
sum_ConsumptionActivePowerL1	Modbus	`kW`
sum_ConsumptionActivePowerL2	Modbus	`kW`
sum_ConsumptionActivePowerL3	Modbus	`kW`
sum_EssActiveChargeEnergy	Modbus	`kWh`
sum_EssActiveDischargeEnergy	Modbus	`kWh`
sum_GridBuyActiveEnergy	Modbus	`kWh`
sum_GridSellActiveEnergy	Modbus	`kWh`
sum_ProductionActiveEnergy	Modbus	`kWh`
sum_ProductionAcActiveEnergy	Modbus	`kWh`
sum_ProductionDcActiveEnergy	Modbus	`kWh`
sum_ConsumptionActiveEnergy	Modbus	`kWh`
sum_EssDcChargeEnergy	Modbus	`kWh`
sum_EssDcDischargeEnergy	Modbus	`kWh`
sum_GridMode	Modbus	`<v>`
sum_EssReactivePower	Modbus	`kW`
sum_EssDischargePower	Modbus	`kW`

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EssActivePower wrong Values
Open
Andreas GoldJun 28, 2023
Hi,
the Modbus Value on Register 303 brings a wrong Value. It is not the actual Battery Power.
Pls help.
2 replies
1. Henrik BorgersAug 13, 2024
  You Need Register 415 for the Battery
2. Andreas ByfutCreatorMay 5, 2025
  Hey, as basically already proposed, use instead the virtual input `sum_EssDischargePower`from the plugin which reads the register 415.
Modbus Register
Open
Hartmut SchedelApr 24, 2025
In deinem Artikel schreibst du das das Register EssActiveDischargeEnergy die aktuelle Batterie Entladeenergie anzeigt leider ist das in Loxone die gesamte Entladeenergie der Lebenszeit des Speichers. Ich finde leider nirgends die aktuelle Entladeleistung weißt du das register bzw. die Adresse des Registers?
1 reply
1. Andreas ByfutCreatorMay 5, 2025
  Ich nutze dafür aus dem Plugin den virtuellen Eingang `sum_EssDischargePower`der das Register 415 abfragt.
  Für eine Beschreibung der Register, gehe auf deine openEMS Instanz unter Einstellungen -> Anlagenprofil -> Konfiguration -> Modbus/TCP lesend und klicke auf `Download Protocoll`.
netzdienliche Beladung
Open
Andreas ErnstMar 10, 2026
Könnte man bitte die netzdienliche Beladung (Manuell / Automatisch inkl. der 3 Risikobereitschafts Einstellungen / Aus) als schreibzugriff von Loxone an Fenecon integrieren?
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