# Latest **URL:** https://discourse.nodered.org/latest.md?page=1105 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 1106 --- ## [Read PLC-variables on a S7-1500 with Raspberry Pi](https://discourse.nodered.org/t/read-plc-variables-on-a-s7-1500-with-raspberry-pi/25608)
**Author:** [@noob](https://discourse.nodered.org/u/noob)\ **Replies:** 5\ **Last updated:** [27 April 2020 22:24 UTC](https://discourse.nodered.org/t/read-plc-variables-on-a-s7-1500-with-raspberry-pi/25608 "2020-04-27T22:24:44Z")
Hey Guys, i want to read a variable from my Siemens ET200SP with Node-RED on Raspberry Pi via Ethernet. I tried the "S7 in"-Node, but there are 2 Errors. "Error:connect ECONNREFUSED 192.168.0.1:102" and "Error:connec… --- ## [Worldmap Tracks Node](https://discourse.nodered.org/t/worldmap-tracks-node/25570)
**Author:** [@BrainBomber100](https://discourse.nodered.org/u/BrainBomber100)\ **Replies:** 6\ **Last updated:** [27 April 2020 22:21 UTC](https://discourse.nodered.org/t/worldmap-tracks-node/25570 "2020-04-27T22:21:31Z")
Hi there. Is it possible to pass an array of elements into the worldmap tracks node and have it track properly? Whenever I do it, it just updates the point without adding a track. Am I missing a certain property when cre… --- ## [Background image with ui\_text overlay](https://discourse.nodered.org/t/background-image-with-ui-text-overlay/25646)
**Author:** [@brammh](https://discourse.nodered.org/u/brammh)\ **Replies:** 2\ **Last updated:** [27 April 2020 22:03 UTC](https://discourse.nodered.org/t/background-image-with-ui-text-overlay/25646 "2020-04-27T22:03:13Z")
Hi all, Is there a simple way to have a background image (on a group, a tab, or just in a ui\_template node) on which I overlay a few ui\_text nodes? Thought this would be easy with node-red-dashboard, but after some sea… --- ## [MQTT node- device username](https://discourse.nodered.org/t/mqtt-node-device-username/25575)
**Author:** [@e-infotech](https://discourse.nodered.org/u/e-infotech)\ **Replies:** 9\ **Last updated:** [27 April 2020 20:58 UTC](https://discourse.nodered.org/t/mqtt-node-device-username/25575 "2020-04-27T20:58:40Z")
Hi, I created 2 MQTT nodes and I want to send each output to a different device with a different username(token), but the problem is when I change the username, the username of all the previous MQTT nodes will also chan… --- ## [S7 1200 Siemens](https://discourse.nodered.org/t/s7-1200-siemens/25247)
**Author:** [@ktm](https://discourse.nodered.org/u/ktm)\ **Replies:** 7\ **Last updated:** [27 April 2020 20:42 UTC](https://discourse.nodered.org/t/s7-1200-siemens/25247 "2020-04-27T20:42:28Z")
Node-RED version: v1.0.5 Node.js version: v12.16.2 Siemens 1214 DC/DC Firm 4.1 Tia V15 Good afternnon this is my first project with a node red and the PLC communication with out a problme on Node REd application , I… --- ## [Telegram to iOS](https://discourse.nodered.org/t/telegram-to-ios/25545)
**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\ **Replies:** 5\ **Last updated:** [27 April 2020 20:08 UTC](https://discourse.nodered.org/t/telegram-to-ios/25545 "2020-04-27T20:08:14Z")
Could any Telegram users tell me if this is feasible with Telegram? I don't use Telegram, but if it is possible, I'll dive straight in, read the docs, install the app & node and develop a flow. I want to send a push m… --- ## [IoT database through MQTT](https://discourse.nodered.org/t/iot-database-through-mqtt/25542)
**Author:** [@luiza98](https://discourse.nodered.org/u/luiza98)\ **Replies:** 7\ **Last updated:** [27 April 2020 20:05 UTC](https://discourse.nodered.org/t/iot-database-through-mqtt/25542 "2020-04-27T20:05:18Z")
Hello, I'm new to this and I have a project that is very important to me, but it exceeds my knowlede. I have to a database for an IoT device through mqtt protocol and sowing the results in Grafana. Can this be done wi… --- ## [Selecting specific value in an array using var](https://discourse.nodered.org/t/selecting-specific-value-in-an-array-using-var/25641)
**Author:** [@opwierde](https://discourse.nodered.org/u/opwierde)\ **Replies:** 4\ **Last updated:** [27 April 2020 20:04 UTC](https://discourse.nodered.org/t/selecting-specific-value-in-an-array-using-var/25641 "2020-04-27T20:04:46Z")
A bit of a beginners question but I am new to JS and Node-RED. I am reading values directly from my solar inverter web interface and am struggling with the kWh value. I have the data from the inverter in an array that l… --- ## [Getting the Darksky payload to display in a UI template with icons](https://discourse.nodered.org/t/getting-the-darksky-payload-to-display-in-a-ui-template-with-icons/25626)
**Author:** [@ANabbie](https://discourse.nodered.org/u/ANabbie)\ **Replies:** 5\ **Last updated:** [27 April 2020 19:44 UTC](https://discourse.nodered.org/t/getting-the-darksky-payload-to-display-in-a-ui-template-with-icons/25626 "2020-04-27T19:44:45Z")
This example gets weather data for today and tomorrow from Darksky and then simply sends the payload to a UI Template which also displays a weather icon using the in-built icons designed by Paul-Reed. The output looks l… --- ## [Guriddo jqGrid + sqlite CRUD (Create, Read, Update, Delete)](https://discourse.nodered.org/t/guriddo-jqgrid-sqlite-crud-create-read-update-delete/25571)
**Author:** [@Petr](https://discourse.nodered.org/u/Petr)\ **Replies:** 2\ **Last updated:** [27 April 2020 19:32 UTC](https://discourse.nodered.org/t/guriddo-jqgrid-sqlite-crud-create-read-update-delete/25571 "2020-04-27T19:32:06Z")
Hi, I am trying to work with this example flow except my data is stored in sqlite. my flow is here: \[{"id":"99f29eee.b00e48","type":"http in","z":"e54fc8b3.8e44a","name":"","url":"/mytable","method":"get","upload":fal… --- ## [Export CSV files based on 1st of Month](https://discourse.nodered.org/t/export-csv-files-based-on-1st-of-month/25586)
**Author:** [@Michilson](https://discourse.nodered.org/u/Michilson)\ **Replies:** 3\ **Last updated:** [27 April 2020 17:22 UTC](https://discourse.nodered.org/t/export-csv-files-based-on-1st-of-month/25586 "2020-04-27T17:22:08Z")
Hello all, I am a new Node Red User and I am looking to export/log sensor data to a CSV file. I'd like to start a new file on the 1st of each month. The flow show posts data every 15 min. currently temp and humidity. … --- ## [Azure Iot hub connection test](https://discourse.nodered.org/t/azure-iot-hub-connection-test/25631)
**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\ **Replies:** 0\ **Last updated:** [27 April 2020 16:43 UTC](https://discourse.nodered.org/t/azure-iot-hub-connection-test/25631 "2020-04-27T16:43:00Z")
Hi! is there any way to test if the azure node has connection ? I tought about the "node-red-contrib-msg-queue" but the azure iot hub node only establishes a connection once the flow sends data to it. so if a have a node… --- ## [Replacing null payload value in change node](https://discourse.nodered.org/t/replacing-null-payload-value-in-change-node/24470)
**Author:** [@chrisgla](https://discourse.nodered.org/u/chrisgla)\ **Replies:** 5\ **Last updated:** [27 April 2020 16:07 UTC](https://discourse.nodered.org/t/replacing-null-payload-value-in-change-node/24470 "2020-04-27T16:07:19Z")
If the value of payload.outside\_temp is "null", can I search for this and change it to a value (99) in a change node? --- ## [Turn off/on screen](https://discourse.nodered.org/t/turn-off-on-screen/24957)
**Author:** [@fvhemert](https://discourse.nodered.org/u/fvhemert)\ **Replies:** 7\ **Last updated:** [27 April 2020 15:05 UTC](https://discourse.nodered.org/t/turn-off-on-screen/24957 "2020-04-27T15:05:40Z")
I am running a windows 10 desktop in (sort of) a kiosk mode. The desktop is connected to a Elro touchscreen on the wall of my living room and fully focused home automation. I am looking at replacing the current touch sc… --- ## [Add property inside a XML string?](https://discourse.nodered.org/t/add-property-inside-a-xml-string/25615)
**Author:** [@smithtek](https://discourse.nodered.org/u/smithtek)\ **Replies:** 2\ **Last updated:** [27 April 2020 14:43 UTC](https://discourse.nodered.org/t/add-property-inside-a-xml-string/25615 "2020-04-27T14:43:06Z")
Hi. Just wondering if it is possible in a function node to add/insert a value in the below XML txt. I had a good read, but this is above my knowledge level. Is a function node the right node to be using for Soap HTTP h… --- ## [Send images from machine A to machine B](https://discourse.nodered.org/t/send-images-from-machine-a-to-machine-b/25391)
**Author:** [@rrl.raoni](https://discourse.nodered.org/u/rrl.raoni)\ **Replies:** 22\ **Last updated:** [27 April 2020 14:29 UTC](https://discourse.nodered.org/t/send-images-from-machine-a-to-machine-b/25391 "2020-04-27T14:29:15Z")
Hello Dear. I have a PC (machine A) which is installed node red - It is in a particular network. I want to send pictures (screenshots of web pages) to machine B - which is not in the same network. How do you suggest … --- ## [How to include timestamp in modbus read out](https://discourse.nodered.org/t/how-to-include-timestamp-in-modbus-read-out/23253)
**Author:** [@chengdi123000](https://discourse.nodered.org/u/chengdi123000)\ **Replies:** 3\ **Last updated:** [27 April 2020 13:15 UTC](https://discourse.nodered.org/t/how-to-include-timestamp-in-modbus-read-out/23253 "2020-04-27T13:15:41Z")
Hi everyone, I want to use modbustcp to gather some data from a modbus over tcp server. And I want to attach a timestamp on the output message. Which one is the best solution: modify the original modbustcp source code… --- ## [Slider should send current value if its clicked again](https://discourse.nodered.org/t/slider-should-send-current-value-if-its-clicked-again/25532)
**Author:** [@notnice](https://discourse.nodered.org/u/notnice)\ **Replies:** 10\ **Last updated:** [27 April 2020 12:43 UTC](https://discourse.nodered.org/t/slider-should-send-current-value-if-its-clicked-again/25532 "2020-04-27T12:43:55Z")
Hi - I'm using slider nodes to control bulb dimmer levels. The bulbs needs to be on in order to change their dimmer level, so my slider output is linked to a function node to turn it on when the slider is moved to a new … --- ## [Project specific dependencies](https://discourse.nodered.org/t/project-specific-dependencies/6867)
**Author:** [@namgk](https://discourse.nodered.org/u/namgk)\ **Replies:** 8\ **Last updated:** [27 April 2020 11:10 UTC](https://discourse.nodered.org/t/project-specific-dependencies/6867 "2020-04-27T11:10:03Z")
When using Node-RED project, I found that the project folder under userDir also has a package.json file. When I add the dependency to the project from the editor, this file is also updated with the dependency. However,… --- ## [Collapsable dashboard suggestion](https://discourse.nodered.org/t/collapsable-dashboard-suggestion/19577)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 14\ **Last updated:** [27 April 2020 10:46 UTC](https://discourse.nodered.org/t/collapsable-dashboard-suggestion/19577 "2020-04-27T10:46:41Z")
Collapsible groups are a great idea. It can save a lot of screen real estate. But the problem is if that group changes its data, unless it is expanded, you will never know. It would be nice if there was a way to inc… --- ## [(very newbie) "assembling" a message to be sent](https://discourse.nodered.org/t/very-newbie-assembling-a-message-to-be-sent/25541)
**Author:** [@e-Duardo](https://discourse.nodered.org/u/e-Duardo)\ **Replies:** 6\ **Last updated:** [27 April 2020 10:45 UTC](https://discourse.nodered.org/t/very-newbie-assembling-a-message-to-be-sent/25541 "2020-04-27T10:45:55Z")
Hi all, Fist of all I want to apologize for not being able to express my self very well in english (as well for my misspelligns). I am just starting out with Node-Red and my programming background is only making easy p… --- ## [Help needed with MQTT to influx](https://discourse.nodered.org/t/help-needed-with-mqtt-to-influx/25421)
**Author:** [@onbekende](https://discourse.nodered.org/u/onbekende)\ **Replies:** 22\ **Last updated:** [27 April 2020 09:54 UTC](https://discourse.nodered.org/t/help-needed-with-mqtt-to-influx/25421 "2020-04-27T09:54:32Z")
Hi all, After lurking a while in the forum, i've been trying to tackle an issue, but i'm just a hobbyist. Hopefully someone can help me figure this out. I have the following question: I'm receiving all data from a … --- ## [UI-Template URL Button With Changing URL](https://discourse.nodered.org/t/ui-template-url-button-with-changing-url/25602)
**Author:** [@BrainBomber100](https://discourse.nodered.org/u/BrainBomber100)\ **Replies:** 0\ **Last updated:** [27 April 2020 08:52 UTC](https://discourse.nodered.org/t/ui-template-url-button-with-changing-url/25602 "2020-04-27T08:52:09Z")
I'm trying to create a button using the UI-Template node that will open a new window using Google's Query URL. However, the URL is constantly updating based on the global variables that are in my flows. Is there any way … --- ## [Multiple references in Value Format field for text node](https://discourse.nodered.org/t/multiple-references-in-value-format-field-for-text-node/6319)
**Author:** [@gadams999](https://discourse.nodered.org/u/gadams999)\ **Replies:** 4\ **Last updated:** [27 April 2020 08:33 UTC](https://discourse.nodered.org/t/multiple-references-in-value-format-field-for-text-node/6319 "2020-04-27T08:33:22Z")
Hi, I'm getting up to speed on passing payload value to a text node for my dashboard. Using the following provides a working LED indicator based on msg.color passed in to the Value format field: \ **Author:** [@mikeh](https://discourse.nodered.org/u/mikeh)\ **Replies:** 3\ **Last updated:** [27 April 2020 08:26 UTC](https://discourse.nodered.org/t/set-parameter-to-subflows-environment-variables-from-a-function/25599 "2020-04-27T08:26:00Z") I have a Subflow named: Get Price Factor. That subflow has 2 Environment Variables named cost and sku. Now before the subflow is called, there's a function named "Get Item Cost". I want to set both cost and sku from th… --- ## [Syslog server using syslog-ng](https://discourse.nodered.org/t/syslog-server-using-syslog-ng/25558)
**Author:** [@jcfrancisco](https://discourse.nodered.org/u/jcfrancisco)\ **Replies:** 2\ **Last updated:** [27 April 2020 08:19 UTC](https://discourse.nodered.org/t/syslog-server-using-syslog-ng/25558 "2020-04-27T08:19:31Z")
Hello! I'm very new to all this topic. Can someone give some help or directions about feeding a Syslog server from Node-red? For instance to record a button activity. Thnks in advance. --- ## [Input Serial Data](https://discourse.nodered.org/t/input-serial-data/25588)
**Author:** [@scalci](https://discourse.nodered.org/u/scalci)\ **Replies:** 4\ **Last updated:** [27 April 2020 07:12 UTC](https://discourse.nodered.org/t/input-serial-data/25588 "2020-04-27T07:12:17Z")
Hi Everyone, I linked an Arduino with weather sensors via a serial port. The data flows and ai can see it in serial monitor. It is basic temperature, humidity etc. And the values are correct. In Node Red I get the conn… --- ## [Updating All Same Devices](https://discourse.nodered.org/t/updating-all-same-devices/25592)
**Author:** [@lexeyfan](https://discourse.nodered.org/u/lexeyfan)\ **Replies:** 0\ **Last updated:** [27 April 2020 06:20 UTC](https://discourse.nodered.org/t/updating-all-same-devices/25592 "2020-04-27T06:20:31Z")
I have a large number of RPI4, all have the same set of nodes, can I automatically update all RPI when changing on my PC? --- ## [Tabs, groups and help with CSS structure](https://discourse.nodered.org/t/tabs-groups-and-help-with-css-structure/25178)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 203\ **Last updated:** [27 April 2020 05:14 UTC](https://discourse.nodered.org/t/tabs-groups-and-help-with-css-structure/25178 "2020-04-27T05:14:05Z")
With my recent journey into CSS I am wanting to ask and get clarification on the hierarchical structure. When designing a dashboard I create a tab then to a group. So, I want to understand the relationship between the g… --- ## [Looking for suggestion on a good "TOGGLE" icon](https://discourse.nodered.org/t/looking-for-suggestion-on-a-good-toggle-icon/25581)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 2\ **Last updated:** [27 April 2020 05:07 UTC](https://discourse.nodered.org/t/looking-for-suggestion-on-a-good-toggle-icon/25581 "2020-04-27T05:07:55Z")
I have a slight problem that I need an icon for a button that is a toggle rather than a specific ON or OFF indication. I have for now the toggle switch icon, but it is misleading on the state of things. Probably a si… [Previous page](https://discourse.nodered.org/latest.md?page=1104) [Next page](https://discourse.nodered.org/latest.md?page=1106)