Dear All Sir : Look at Pic and below : Just 1 input(RX). The function node code like: for(i=0;i<6;i++) { switch(rx_data[1]) { case 0 : //show o3 value msg.topic="Read_All_is_OK"; msg.payload="Read All Sensors Value is ok."; break; case 1 : …

[image] jlian168: But buffer parse node output connect to switch node What switch node? The screenshot above is showing a change node - to set the msg.payload to "Send OK" [image] [image] [image] jlian168: Use what kind of type to connect? ??? A change node ??? Not sure what you a…

[image] jlian168: Look at Pic : How did this value come from? It comes from converting the bytes into int16 and int32 as per the settings entered and data inputted. What don't you understand?

Dear Stevev-Mcl : It cant cause I another one output use payload(to ui_text), But buffer parser isnt, Right? Like O3 data is from array[16]~array[19],I didnt see the O3 value, So maybe I think its json data type, Right? Thank u.

Dear Stevev-Mcl : Look at pic and code at below : var msg_read={ payload:"Read_All_is_OK" ,topic:"Read_All_is_OK"}; // var o3_value=[msg.payload.data[16],msg.payload.data[17],msg.payload.data[18],msg.payload.data[19]]; var o3_value_buf=new Buffer(o3_value); o3_value=o3_value_buf.readFloatBE(0); va…

[image] jlian168: RX has receive data,But Tte Gauge didnt show value! Where I was wrong? Read the Gauge built in help - that is NOT how you use Value Format [image] jlian168: And why has the error? Because there is no data property in msg.payload Here is a working demo... [EcbfW1…

Dear McI : If I want add a parser output O3_Send_Value to text ant show "O3_Send_is_OK." But...How? Thank u.

[image] jlian168: f I want add a parser output O3_Send_Value to text ant show "O3_Send_is_OK." What makes O3_Send OK? What makes O3_Send BAD?

Dear McI : If I receive is done so send ok else send bad. Look at pic : {{value | number:2}} //What its mean? [螢幕擷取畫面 2021-07-09 152306] Thank u.

[image] jlian168: Look at pic : {{value | number:2}} //What its mean? It means format msg.payload to a number with 2 decimal points. Read the built in help... [image]

Dear Steve-Mcl : {{value | number:2}} But no round the value to two decimal place? Cause need show some information So if use my way is can to do? Thank u.

[image] jlian168: {{value | number:2}} But no round the value to two decimal place? You can see from the demo I gave you is DOES round... [image] [image] jlian168: Cause need show some information So if use my way is can to do? What is "some information"? I'm afraid much of wh…

Node-RED

Node-RED Forum

If I have 1 input but multi output...How to do?

General

Steve-Mcl 9 July 2021 07:23 21

What makes O3_Send OK?

What makes O3_Send BAD?

Topic		Replies	Views
Node function multiple output General	6	597	6 December 2024
How to seperate value from incoming msg.payload? Dashboard	53	98076	19 December 2020
From buffer-parser to values General modbus	29	961	27 November 2023
Multiple outputs of function node not working General	28	5416	4 August 2019
General support for newbie General	17	258	7 February 2025

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

If I have 1 input but multi output...How to do?

Related topics