Manual control for ESS

Modifications
1

Not relevant anymore

2

I have node-red doing a lot of things but specifically to get 2 ESS working on the same meter I needed to disable the internal chargers overnight. I have a mix of solar and use excess grid-tied PV to charge the batteries. This flow sets DVCC to 0 from 5pm to 7am so they don’t charge from each other overnight.

image
image1585×273 53.1 KB

Flow

[
{
“id”: “07b85bf4d24aed70”,
“type”: “victron-input-ess”,
“z”: “01ee52a626bbef83”,
“service”: “com.victronenergy.settings”,
“path”: “/Settings/SystemSetup/MaxChargeCurrent”,
“serviceObj”: {
“service”: “com.victronenergy.settings”,
“name”: “Venus settings”
},
“pathObj”: {
“path”: “/Settings/SystemSetup/MaxChargeCurrent”,
“type”: “float”,
“name”: “DVCC Charge current limit (A)”
},
“name”: “”,
“onlyChanges”: false,
“x”: 1500,
“y”: 620,
“wires”: [

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{
“id”: “5711b23639c1d4fa”,
“type”: “victron-output-settings”,
“z”: “01ee52a626bbef83”,
“service”: “com.victronenergy.settings”,
“path”: “/Settings/SystemSetup/MaxChargeCurrent”,
“serviceObj”: {
“service”: “com.victronenergy.settings”,
“name”: “Venus settings”
},
“pathObj”: {
“path”: “/Settings/SystemSetup/MaxChargeCurrent”,
“type”: “float”,
“name”: “DVCC system max charge current (A DC)”,
“writable”: true
},
“name”: “”,
“onlyChanges”: false,
“x”: 1530,
“y”: 560,
“wires”:
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{
“id”: “93de6af69f0f6765”,
“type”: “debug”,
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“name”: “debug 3”,
“active”: false,
“tosidebar”: true,
“console”: false,
“tostatus”: false,
“complete”: “false”,
“statusVal”: “”,
“statusType”: “auto”,
“x”: 1380,
“y”: 520,
“wires”:
},
{
“id”: “69ec4d2465dc08bd”,
“type”: “inject”,
“z”: “01ee52a626bbef83”,
“name”: “EVERY 5 SEC SEND 1”,
“props”: [
{
“p”: “payload”
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{
“p”: “topic”,
“vt”: “str”
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“repeat”: “5”,
“crontab”: “”,
“once”: false,
“onceDelay”: 0.1,
“topic”: “”,
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{
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“type”: “inject”,
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“name”: “”,
“props”: [
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“p”: “payload”
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{
“p”: “topic”,
“vt”: “str”
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“repeat”: “”,
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},
{
“id”: “49c58fca4c0aa9c1”,
“type”: “function”,
“z”: “01ee52a626bbef83”,
“name”: “Send charge current for the day”,
“func”: “// Get the current timestamp\nvar now = new Date();\nvar localTime = new Date(now.getTime()); // Adjust if needed\n\n// Get the current local hour and minute\nvar currentHour = localTime.getHours();\nvar currentMinute = localTime.getMinutes();\n\n// Define the start and end times (7:00 AM to 5:00 PM)\nvar startTime = { hour: 7, minute: 0 }; // Starts at 7:00 AM\nvar endTime = { hour: 17, minute: 0 }; // Ends at 5:00 PM\n\n// Convert times to total minutes\nvar startTotalMinutes = startTime.hour * 60 + startTime.minute;\nvar endTotalMinutes = endTime.hour * 60 + endTime.minute;\nvar currentTotalMinutes = currentHour * 60 + currentMinute;\n\n// Check conditions: if time is between 7:00 AM and 5:00 PM\nif (currentTotalMinutes >= startTotalMinutes && currentTotalMinutes < endTotalMinutes) {\n msg.payload = 50; // Send 25 within the time range\n} else {\n msg.payload = 0; // Send 0 outside the time range\n}\n\nreturn msg;\n”,
“outputs”: 1,
“timeout”: 0,
“noerr”: 0,
“initialize”: “”,
“finalize”: “”,
“libs”: ,
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3

I have split this off to a new topic in modifications. Please change the title accordingly.

4

Not relevant anymore

5

Not relevant anymore

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