E3DC Anbindung per Modbus TCP
Hier ein Beispiel mit dem ein E3DC Hauskraftwerk in RedMatic integriert werden kann. Die Verbindung zum S10 Stromspeicher wird per Modbus-TCP hergestellt. Die abgefragten Leistungswerte, werden im Dashboard dargestellt und in entsprechende Systemvariablen der HomeMatic eingetragen.
unter Zusätzliche Node-RED Nodes installieren ist beschrieben wie weitere Nodes installiert werden können. Hier installieren Sie Bitte den node node-red-contrib-modbustcp.
importieren Sie den folgenden Flow wie unter Flows importieren beschrieben:
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msg2.payload = 0;\n msg3.payload = pos;\n}\nreturn [msg1,msg2,msg3];","outputs":3,"noerr":0,"x":390,"y":840,"wires":[["6f98e500.72f1ac","cd057216.b0053"],["a8546f39.5c1ad8"],["33962974.799d9e"]],"outputLabels":["Netzleistung","Bezug","Einspeisung"]},{"id":"6f98e500.72f1ac","type":"ui_gauge","z":"e144f16b.b96","name":"Netzleistung","group":"90b2f9ee.0bf5e","order":0,"width":"6","height":"6","gtype":"gage","title":"Leistung","label":"Watt","format":"{{value}}","min":"-4000","max":"4000","colors":["#58ACFA","#81F781","#FAAC58"],"seg1":"-40","seg2":"40","x":650,"y":780,"wires":[]},{"id":"cd057216.b0053","type":"ui_chart","z":"e144f16b.b96","name":"Netzleistung","group":"90b2f9ee.0bf5e","order":0,"width":"6","height":"6","label":"Tag","chartType":"line","legend":"false","xformat":"HH:mm","interpolate":"linear","nodata":"wait 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msg2.payload = 0;\n msg3.payload = pos;\n}\nreturn [msg1,msg2,msg3];","outputs":3,"noerr":0,"x":390,"y":1020,"wires":[["752e3d82.1f9264","36ef8f9a.e6a2"],["98102a72.7df3b8"],["57d47377.7a09d4"]],"outputLabels":["Batterieleistung","Laden","Entladen"]},{"id":"b1e4d00.4c7f8b","type":"comment","z":"e144f16b.b96","name":"E3DC > Modbus > Dashboard & HomeMatic","info":"Flow um per Modbus Daten vom E3/DC S10 abzufragen.\nDie Daten werden im Dashboard angezeigt und an die Systemvariablen der HomeMatic übertragen.","x":250,"y":60,"wires":[]},{"id":"f1cdccfc.9817","type":"modbustcp-read","z":"e144f16b.b96","name":"Modbus read","topic":"","dataType":"HoldingRegister","adr":"40067","quantity":"16","rate":"15","rateUnit":"s","server":"5cab97ab.918b48","ieeeType":"off","ieeeBE":"true","x":150,"y":280,"wires":[["5587595c.15b24"]]},{"id":"5587595c.15b24","type":"function","z":"e144f16b.b96","name":"Umrechnen","func":"var ui32a = new Uint32Array(msg.payload);\n\nmsg1 = {};\nmsg2 = {};\nmsg3 = {};\nmsg4 = {};\nmsg5 = {};\n\nvar home = 0;\nvar pvi = 0;\nvar grid = 0;\nvar bat = 0;\nvar soc = 0;\n\npvi += ui32a[0];\npvi -= ui32a[1];\nbat += ui32a[2];\nbat -= ui32a[3];\nhome += ui32a[4];\nhome -= ui32a[5];\ngrid += ui32a[6];\ngrid -= ui32a[7];\nsoc = ui32a[15];\n\nmsg1.payload = home;\nmsg2.payload = pvi;\nmsg3.payload = grid;\nmsg4.payload = bat;\nmsg5.payload = soc;\n\nreturn [msg1,msg2,msg3,msg4,msg5];\n","outputs":5,"noerr":0,"x":390,"y":280,"wires":[["5edf6f39.c0aa5"],["37706221.fc9e76"],["de402c0c.22d58"],["2276da6f.e26d3e"],["77b00f9b.8a498"]],"outputLabels":["Hausverbrauch","PV-Leistung","Netzleistung","Batterieleistung","Batterie-SOC"]},{"id":"5edf6f39.c0aa5","type":"link out","z":"e144f16b.b96","name":"Hausverbrauch","links":["d266c4.d7aef14"],"x":660,"y":200,"wires":[],"l":true},{"id":"37706221.fc9e76","type":"link out","z":"e144f16b.b96","name":"PV-Leistung","links":["a13274a5.1aee98"],"x":650,"y":240,"wires":[],"l":true},{"id":"de402c0c.22d58","type":"link 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\n","x":180,"y":220,"wires":[]},{"id":"38263145.35ea0e","type":"ccu-connection","z":"","name":"AdB15","host":"localhost","regaEnabled":true,"bcrfEnabled":true,"iprfEnabled":true,"virtEnabled":true,"bcwiEnabled":false,"cuxdEnabled":false,"regaPoll":true,"regaInterval":"30","rpcPingTimeout":"60","rpcInitAddress":"127.0.0.1","rpcServerHost":"127.0.0.1","rpcBinPort":"2047","rpcXmlPort":"2048","queueTimeout":"5000","queuePause":"250","contextStore":""},{"id":"333e915b.9ccd5e","type":"ui_group","z":"","name":"Hausverbrauch","tab":"2afac8ee.335a1","order":1,"disp":true,"width":"6","collapse":false},{"id":"6ba71bdd.5e7c44","type":"ui_group","z":"","name":"PV-Leistung","tab":"2afac8ee.335a1","order":2,"disp":true,"width":"6","collapse":false},{"id":"e3817d3.76e","type":"ui_group","z":"","name":"Batterie-SOC","tab":"2afac8ee.335a1","order":5,"disp":true,"width":"6","collapse":false},{"id":"a45e2e06.0d4a78","type":"ui_group","z":"","name":"Batterieleistung","tab":"2afac8ee.335a1","order":4,"disp":true,"width":"6","collapse":false},{"id":"90b2f9ee.0bf5e","type":"ui_group","z":"","name":"Netzleistung","tab":"2afac8ee.335a1","order":3,"disp":true,"width":"6","collapse":false},{"id":"5cab97ab.918b48","type":"modbustcp-server","z":"","name":"IP-E3DC_S10","host":"192.168.123.456","port":"502","unit_id":"1","reconnecttimeout":"120"},{"id":"2afac8ee.335a1","type":"ui_tab","z":"","name":"E3/DC S10","icon":"battery_full","disabled":false,"hidden":false}]
IP-Adresse vom S10 Hauskraftwerk anpassen
In der HomeMatic die Systemvariablen anlegen und an den Nodes entsprechend auswählen.
Am Hauskraftwerk muss die Modbusschnittstelle eingerichtet werden. Im Modbusmenü die Funktion aktivieren, dann auf der nächsten Seite das Protokoll "E3DC" wählen, der Port bleibt bei "502".
Der Offset zum Magicbyte für die Register ist bei "-1", bedeutet eine Abfrage vom z.B. Register 40068 muss auf der Adresse 40067 gemacht werden. Damit nicht mehrere Poll mit je 1-2 Registern gemacht werden (Stabilität), frage ich hier im Beispiel mit einem Poll 16 Register ab.
Die abgefragten 16 Register verteile ich hier im Flow auf 5 Ausgänge. Für die Leistungswerte (Int32) werden 2 Register zusammengefasst damit die negativen Werte dargestellt werden können. Die 5 Ausgänge werden mit "Links" im Flow verteilt.
Für die Leistungswerte die Negativ sein können (Netzleistung und Batterieleistung) werden die Werte für die Übergabe an die Homematic umgerechnet und mit zwei Ausgängen an die SysVar übergeben. So wird z.B. die Batterieleistung entweder als Batterieladung oder Batterieentladung angegeben. Im Dashboard werden die Leistungswerte über einen weiteren Ausgang direkt dargestellt.
Den "Reconnect Interval" habe ich hier auf 120 Sekunden gestellt. Wenn hier nichts eingetragen ist dann würde nach einem Neustart des S10 die Modbus-Verbindung nicht automatisch wieder aufgebaut.
Es können nur für die Wallbox Parameteränderungen gesendet werden. Die Batterieleistung oder andere Einstellungen können nicht verändert werden.
