@hermann1514 (Hermann Mueller) posted a new topic, subject "[SOLVED] Change Temp with Nodered on 2 heating controllers". It read:

   Hi,
    
    i control my openhab2 with Nodered.  
    Now have the following requirement, which I can not do this:
    
    In one room I have 2 Homematic heating controllers. I would like, if a heater is changed, that this temperature is also transferred to the other heater.
    
    For this I have created the following Flow:
    [code] 
        [{"id":"243dfed4.b2c72a","type":"openhab2-in","z":"310f6987.505a6e","name":"","controller":"ce8959a.db84d28","itemname":"Stube_Heizung_Seite_SetTemperature","x":245,"y":123,"wires":[["3cda13a.9a475ec","328e565e.25dc52"],[]]},{"id":"3cda13a.9a475ec","type":"openhab2-out","z":"310f6987.505a6e","name":"","controller":"ce8959a.db84d28","itemname":"Stube_Heizung_Strasse_SetTemperature","topic":"ItemCommand","payload":"","x":666,"y":117,"wires":[["7bf7a666.54f068"]]},{"id":"328e565e.25dc52","type":"debug","z":"310f6987.505a6e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":309,"y":244,"wires":[]},{"id":"7bf7a666.54f068","type":"debug","z":"310f6987.505a6e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":694,"y":246,"wires":[]},{"id":"55dc42b8.fc75bc","type":"openhab2-in","z":"310f6987.505a6e","name":"","controller":"ce8959a.db84d28","itemname":"Stube_Heizung_Strasse_SetTemperature","x":237,"y":390,"wires":[["d79078db.380fd8","d52c12de.39f19"],[]]},{"id":"d79078db.380fd8","type":"openhab2-out","z":"310f6987.505a6e","name":"","controller":"ce8959a.db84d28","itemname":"Stube_Heizung_Seite_SetTemperature","topic":"ItemCommand","payload":"","x":638,"y":384,"wires":[["6f4e07a5.00ccf8"]]},{"id":"d52c12de.39f19","type":"debug","z":"310f6987.505a6e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":291,"y":511,"wires":[]},{"id":"6f4e07a5.00ccf8","type":"debug","z":"310f6987.505a6e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":676,"y":513,"wires":[]},{"id":"ce8959a.db84d28","type":"openhab2-controller","z":"","name":"openhab2","protocol":"http","host":"localhost","port":"8080","path":"","username":"","password":""}]
        
    [/code]
    
    But as soon as I change the temperature, it will be changed in a LOOP.
    
    How can I prevent this?
    
    Thank you.  
    greeting  
    Hermann

To which @vzorglub (Vincent Regaud) replied

    Use rbe nodes:
    [code] 
        [
            {
                "id": "242e73db.f9362c",
                "type": "openhab2-in",
                "z": "a38d290c.fb04b",
                "name": "",
                "controller": "52c1ae49.97daf8",
                "itemname": "Stube_Heizung_Seite_SetTemperature",
                "x": 290,
                "y": 140,
                "wires": [
                    [
                        "b4a53e18.571d38",
                        "67979708.c79f58"
                    ],
                    []
                ]
            },
            {
                "id": "e4617b71.d2788",
                "type": "openhab2-out",
                "z": "a38d290c.fb04b",
                "name": "",
                "controller": "52c1ae49.97daf8",
                "itemname": "Stube_Heizung_Strasse_SetTemperature",
                "topic": "ItemCommand",
                "payload": "",
                "x": 900,
                "y": 120,
                "wires": [
                    [
                        "85d56664.950aa"
                    ]
                ]
            },
            {
                "id": "b4a53e18.571d38",
                "type": "debug",
                "z": "a38d290c.fb04b",
                "name": "",
                "active": true,
                "tosidebar": true,
                "console": false,
                "tostatus": false,
                "complete": "false",
                "x": 354,
                "y": 261,
                "wires": []
            },
            {
                "id": "85d56664.950aa",
                "type": "debug",
                "z": "a38d290c.fb04b",
                "name": "",
                "active": true,
                "tosidebar": true,
                "console": false,
                "tostatus": false,
                "complete": "false",
                "x": 739,
                "y": 263,
                "wires": []
            },
            {
                "id": "d291b01d.53bde",
                "type": "openhab2-in",
                "z": "a38d290c.fb04b",
                "name": "",
                "controller": "52c1ae49.97daf8",
                "itemname": "Stube_Heizung_Strasse_SetTemperature",
                "x": 282,
                "y": 407,
                "wires": [
                    [
                        "739c2402.262edc",
                        "3bd727d.63db8d8"
                    ],
                    []
                ]
            },
            {
                "id": "5b17e189.16f7",
                "type": "openhab2-out",
                "z": "a38d290c.fb04b",
                "name": "",
                "controller": "52c1ae49.97daf8",
                "itemname": "Stube_Heizung_Seite_SetTemperature",
                "topic": "ItemCommand",
                "payload": "",
                "x": 840,
                "y": 400,
                "wires": [
                    [
                        "5b73f99b.9eb62"
                    ]
                ]
            },
            {
                "id": "739c2402.262edc",
                "type": "debug",
                "z": "a38d290c.fb04b",
                "name": "",
                "active": true,
                "tosidebar": true,
                "console": false,
                "tostatus": false,
                "complete": "false",
                "x": 336,
                "y": 528,
                "wires": []
            },
            {
                "id": "5b73f99b.9eb62",
                "type": "debug",
                "z": "a38d290c.fb04b",
                "name": "",
                "active": true,
                "tosidebar": true,
                "console": false,
                "tostatus": false,
                "complete": "false",
                "x": 721,
                "y": 530,
                "wires": []
            },
            {
                "id": "67979708.c79f58",
                "type": "rbe",
                "z": "a38d290c.fb04b",
                "name": "",
                "func": "rbe",
                "gap": "",
                "start": "",
                "inout": "out",
                "property": "payload",
                "x": 590,
                "y": 120,
                "wires": [
                    [
                        "e4617b71.d2788"
                    ]
                ]
            },
            {
                "id": "3bd727d.63db8d8",
                "type": "rbe",
                "z": "a38d290c.fb04b",
                "name": "",
                "func": "rbe",
                "gap": "",
                "start": "",
                "inout": "out",
                "property": "payload",
                "x": 570,
                "y": 400,
                "wires": [
                    [
                        "5b17e189.16f7"
                    ]
                ]
            },
            {
                "id": "52c1ae49.97daf8",
                "type": "openhab2-controller",
                "z": "",
                "name": "openhab2",
                "protocol": "http",
                "host": "localhost",
                "port": "8080",
                "path": "",
                "username": "",
                "password": ""
            }
        ]
        
    [/code]

So @hermann1514 (Hermann Mueller) replied

    Great.
    
    Thanks. It works now.
    
    Regards  
    Hermann


{'source': 'discourse', 'url': 'https://community.openhab.org/t/solved-change-temp-with-nodered-on-2-heating-controllers/55799', 'title': '[SOLVED] Change Temp with Nodered on 2 heating controllers', 'views': 364, 'has_accepted_answer': True, 'word_count': 573, 'like_count': 0, 'reply_count': 2, 'participant_count': 2, 'posts': 3, 'tags': '', 'author': '@hermann1514 (Hermann Mueller)', 'participants': '@hermann1514 (Hermann Mueller), @vzorglub (Vincent Regaud)', 'image_url': [None], 'created_at': '2018-11-05T07:26:41.685Z', 'last_posted_at': '2018-11-05T10:09:59.880Z'}