# Multiple line chart instructions
**URL:** https://discourse.nodered.org/t/multiple-line-chart-instructions/75932
**Category:** Dashboard
**Tags:** chart
**Created:** [1 March 2023 12:24 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932 "2023-03-01T12:24:19Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:24 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/1 "2023-03-01T12:24:19Z")
Hello,
I am new to node red and I have problems creating simple multiple line chart. I red many examples and watch a lot of videos and I still dont know what I am doing wrong. I came so far that I am getting data to chart but only as a point. There is no real time x axis.
My code:
```auto
var l1 = msg.payload.L1; //get payload
var l2 = msg.payload.L2;
var l3 = msg.payload.L3;
var Napetost1 = [{
"series": ["L1"],
"data": [l1],
"labels": [""],
}];
var Napetost2 = [{
"series": ["L2"],
"data": [l2],
"labels": [""],
}];
var Napetost2 = [{
"series": ["L3"],
"data": [l3],
"labels": [""],
}];
msg.payload = [{
"series": ["L1", "L2", "L3"],
"data": [[l1], [l2], [l3]],
"labels": [""] }]
return msg;
```
Please if any one can tell me what I missed in all instructions I read.
br
Aleksander
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:30 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/2 "2023-03-01T12:30:36Z")
Is this a live chart or historical data?
What is the contents of msg.payload?
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:32 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/3 "2023-03-01T12:32:25Z")
...It is a live chart. Data is from S7 node.
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:33 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/4 "2023-03-01T12:33:05Z")
Is there a reason you only answered one question?
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:36 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/5 "2023-03-01T12:36:48Z")
... sorry, but I am not sure what you mean. I collect data from siemens PLC and I am trying to show them in chart. Data from PLC are
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:37 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/6 "2023-03-01T12:37:47Z")
> [@Sekuti](#):
>
> ```auto
> var l1 = msg.payload.L1; //get payload
> var l2 = msg.payload.L2;
> var l3 = msg.payload.L3;
>
> ```
I mean the payload going into the function node as above.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:39 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/7 "2023-03-01T12:39:51Z")
... so payload datas are variables of type "Real", I get them from S7 PLC. ?
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:40 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/8 "2023-03-01T12:40:35Z")
If you do not give the contents of msg.payload I can not help.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:42 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/9 "2023-03-01T12:42:46Z")
... I realy dont understant what you need, can you show me example, or tell me what to copy?
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:45 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/10 "2023-03-01T12:45:27Z")
I require the contents of msg.payload, stick a debug on the s7 node and copy the contents using the copy value button,. Read [here](https://nodered.org/docs/user-guide/messages#understanding-the-structure-of-a-message) for more info on copying values
Please help us help you by reading the documentation and getting a basic understanding of how node-red works.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:47 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/11 "2023-03-01T12:47:17Z")
...
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:48 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/12 "2023-03-01T12:48:45Z")
Help us help you and provide what i asked for in the format i ask. I need you to use the copy value icon, read what i asked you to read, and provide the data as text.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 12:51 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/13 "2023-03-01T12:51:16Z")
...following payload from function to chart
[{"series":["L1","L2","L3"],"data":[225,235,229],"labels":[""]}]
...folowing payload from s7 to function
{"I1":1,"I2":2,"I3":3,"L1":225,"L2":235,"L3":232}
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 12:54 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/14 "2023-03-01T12:54:57Z")
example with your incoming payload.
```auto
[{"id":"79e0b5a157701d91","type":"inject","z":"65617ffeb779f51c","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"{\"I1\":1,\"I2\":2,\"I3\":3,\"L1\":225,\"L2\":235,\"L3\":232}","payloadType":"json","x":110,"y":540,"wires":[["92ce61da44348d5e"]]},{"id":"92ce61da44348d5e","type":"change","z":"65617ffeb779f51c","name":"","rules":[{"t":"delete","p":"payload.I1","pt":"msg"},{"t":"delete","p":"payload.I2","pt":"msg"},{"t":"delete","p":"payload.I3","pt":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":280,"y":580,"wires":[["d4e7fd40495eac8b"]]},{"id":"d4e7fd40495eac8b","type":"split","z":"65617ffeb779f51c","name":"","splt":"\\n","spltType":"str","arraySplt":1,"arraySpltType":"len","stream":false,"addname":"topic","x":450,"y":580,"wires":[["c1b0021ca796317f"]]},{"id":"c1b0021ca796317f","type":"debug","z":"65617ffeb779f51c","name":"chart","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":596,"y":688,"wires":[]}]
```
[How to import a flow](https://nodered.org/docs/user-guide/editor/workspace/import-export)
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 13:03 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/15 "2023-03-01T13:03:34Z")
... sorry but can you explain what did you sent and where I should copy this?
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 March 2023 13:05 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/16 "2023-03-01T13:05:03Z")
See link provided.
Again please read the documentation and watch the videos, it will make using node-red and asking for help much easier.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 13:13 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/17 "2023-03-01T13:13:16Z")
...like I said I am a beginer in node red. I read I lot about it but one is theory and other is practical usage. I manage to import your flow. Thank you. I will test it.
Thank you again.
---
### Author:  [@Sekuti](https://discourse.nodered.org/u/Sekuti)
#### Post date: [1 March 2023 13:22 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/18 "2023-03-01T13:22:22Z")
... tested. Working!
Thank you again.
---
### Author:  [@mudwalker](https://discourse.nodered.org/u/mudwalker)
#### Post date: [1 March 2023 16:19 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/19 "2023-03-01T16:19:08Z")
As a 'Beginner' it would be well worth you watching this playlist: [Node-RED Essentials](https://www.youtube.com/playlist?list=PLyNBB9VCLmo1hyO-4fIZ08gqFcXBkHy-6). The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [31 March 2023 16:19 UTC](https://discourse.nodered.org/t/multiple-line-chart-instructions/75932/20 "2023-03-31T16:19:28Z")
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