Node-RED Relay Control not working?

Question

question

Warwick Bruce Chapman asked Mar 14, '23

Node-RED Relay Control not working?

I have a relay control flow which seems to be unable to toggle the relay.

Relay is configured "Manual" on Venus OS via Remote Console.

When I inject 1 to Relay Control node, nothing happens.

Debug output on Relay state node shows 0.

I am injecting a number rather than a string.

Site is running 2.93.

Test flow is:

[
    {
        "id": "31354d578857de0a",
        "type": "tab",
        "label": "Flow 2",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "5671ca31f217c5b6",
        "type": "victron-output-relay",
        "z": "31354d578857de0a",
        "service": "com.victronenergy.system",
        "path": "/Relay/0/State",
        "serviceObj": {
            "service": "com.victronenergy.system",
            "name": "Venus device",
            "paths": [
                {
                    "path": "/Relay/0/State",
                    "type": "enum",
                    "name": "Venus relay 1 state",
                    "enum": {
                        "0": "Open",
                        "1": "Closed"
                    },
                    "writable": true,
                    "disabled": true
                },
                {
                    "path": "/Relay/1/State",
                    "type": "enum",
                    "name": "Venus relay 2 state",
                    "enum": {
                        "0": "Open",
                        "1": "Closed"
                    },
                    "writable": true
                }
            ]
        },
        "pathObj": {
            "path": "/Relay/0/State",
            "type": "enum",
            "name": "Venus relay 1 state",
            "enum": {
                "0": "Open",
                "1": "Closed"
            },
            "writable": true,
            "disabled": true
        },
        "initial": "",
        "name": "Relay 1 Control",
        "x": 700,
        "y": 200,
        "wires": []
    },
    {
        "id": "41b489a25a7f84ca",
        "type": "inject",
        "z": "31354d578857de0a",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "1",
        "payloadType": "num",
        "x": 390,
        "y": 200,
        "wires": [
            [
                "5671ca31f217c5b6"
            ]
        ]
    },
    {
        "id": "b5a78968a6a95d9b",
        "type": "victron-input-relay",
        "z": "31354d578857de0a",
        "service": "com.victronenergy.system",
        "path": "/Relay/0/State",
        "serviceObj": {
            "service": "com.victronenergy.system",
            "name": "com.victronenergy.system",
            "paths": [
                {
                    "path": "/Relay/0/State",
                    "type": "enum",
                    "name": "Venus relay 1 state",
                    "enum": {
                        "0": "Open",
                        "1": "Closed"
                    }
                },
                {
                    "path": "/Relay/1/State",
                    "type": "enum",
                    "name": "Venus relay 2 state",
                    "enum": {
                        "0": "Open",
                        "1": "Closed"
                    }
                }
            ]
        },
        "pathObj": {
            "path": "/Relay/0/State",
            "type": "enum",
            "name": "Venus relay 1 state",
            "enum": {
                "0": "Open",
                "1": "Closed"
            }
        },
        "initial": "",
        "name": "Relay 1 State",
        "x": 390,
        "y": 280,
        "wires": [
            [
                "761e7523d0459975"
            ]
        ]
    },
    {
        "id": "761e7523d0459975",
        "type": "debug",
        "z": "31354d578857de0a",
        "name": "relay 1 state",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "payload",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 570,
        "y": 280,
        "wires": []
    }
]

Node-RED gateway relay

2

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Stefanie (Victron Energy Staff) ♦♦ commented · Mar 14, 2023 at 05:49 PM

Your flow is working perfectly fine for me on Relay 1, however with v3.00~23...

0 ·

Warwick Bruce Chapman Stefanie (Victron Energy Staff) ♦♦ commented · Mar 14, 2023 at 06:11 PM

Thanks - will try update.

0 ·

Modifications Space

Node Red Space

Answer 1 · 2023-03-15T14:49:19Z

Dirk-Jan Faber (Victron Energy) answered · Mar 15, 2023 at 02:49 PM

There are 2:

                    "disabled": true

in the flow. I suggest removing that.

I've seen that before and am not sure where it comes from. In the lower right corner of the edit panel there should be a toggle to (re-)enable it as well.

3

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Warwick Bruce Chapman commented · Mar 15, 2023 at 03:02 PM

Note that after I upgraded to 3.00~23, it started working.

I'm not sure if it was the upgrade or the reboot, but it is working.

This is the site if you want to see the finished flow. It shuts off a Sunny Boy when the battery gets near full: https://vrm.victronenergy.com/installation/275104/dashboard

0 ·

Dirk-Jan Faber (Victron Energy) ♦ Warwick Bruce Chapman commented · Mar 16, 2023 at 09:44 PM

In ~20 or ~21 there was an issue with the control nodes not functioning. So it could have been that.

0 ·

Warwick Bruce Chapman Dirk-Jan Faber (Victron Energy) ♦ commented · Mar 17, 2023 at 07:27 PM

It was 2.93 and then now 3.00~23.

0 ·

Answer 2 · 2024-04-18T12:32:44Z

r2d2 answered · 18 hours ago

Afraid issue still persists on fw.v3.30 on copy or import node-red node 'victron-output-relay'

properties/Relay = Venus Device properties/Measurement = Venus relay 1 state => There is a 'Disabled in the node JSON. (not if properties/Measurement = Venus relay 2 state is set)

see JSON

[

{

"id": "77042d3c8b2f2454",

"type": "victron-output-relay",

"z": "a2f02fb46ec1de78",

"service": "com.victronenergy.system/0",

"path": "/Relay/0/State",

"serviceObj": {

"service": "com.victronenergy.system/0",

"name": "Venus device"

},

"pathObj": {

"path": "/Relay/0/State",

"type": "enum",

"name": "Venus relay 1 state",

"enum": {

"0": "Open",

"1": "Closed"

},

"writable": true,

"disabled": true

},

"initial": "",

"name": "",

"onlyChanges": false,

"x": 1300,

"y": 660,

"wires": []

}

]

Workaround : import node with corrected json from clipboard

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Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

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