# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1218

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1219

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## [HTTP request node not following 302 redirect](https://discourse.nodered.org/t/http-request-node-not-following-302-redirect/16409)

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**Author:** [@M-F-K](https://discourse.nodered.org/u/M-F-K)\
**Replies:** 5\
**Last updated:** [8 October 2019 11:07 UTC](https://discourse.nodered.org/t/http-request-node-not-following-302-redirect/16409 "2019-10-08T11:07:31Z")

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Hi, Im a newbie to node-red and this forum, so if anything in this post sounds stupid or the post itself placed wrong, im sorry for wasting your time. annyway my problem: Im trying to to a post redirect to gain wunder…

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## [Cannot install node-red-contrib-gpio](https://discourse.nodered.org/t/cannot-install-node-red-contrib-gpio/16397)

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**Author:** [@shj-123558](https://discourse.nodered.org/u/shj-123558)\
**Replies:** 12\
**Last updated:** [8 October 2019 10:59 UTC](https://discourse.nodered.org/t/cannot-install-node-red-contrib-gpio/16397 "2019-10-08T10:59:42Z")

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A lot of errors,what's to be done?Thank you 2019-10-07T01:06:38.134Z 安装 : node-red-contrib-gpio 0.14.0 2019-10-07T01:07:18.767Z \[out\] 2019-10-07T01:07:18.767Z \[out\] \> serialport@6.0.5 install C:\\Users\\Administrator.no…

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## [Node-red-contrib-amazon-echo and running NR in root at bootup](https://discourse.nodered.org/t/node-red-contrib-amazon-echo-and-running-nr-in-root-at-bootup/16442)

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**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 5\
**Last updated:** [8 October 2019 09:21 UTC](https://discourse.nodered.org/t/node-red-contrib-amazon-echo-and-running-nr-in-root-at-bootup/16442 "2019-10-08T09:21:32Z")

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System: NR: v20.5 HW: pi3b+ Use: Home automation; Alexa, Broadlink, Wemo, Environ monitor Problem: node-red-contrib-alexa-local no longer works What to achieve: Restore use of Alexa functions with minimal disruption…

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## [My journey into the bluetooth world](https://discourse.nodered.org/t/my-journey-into-the-bluetooth-world/16457)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [8 October 2019 09:15 UTC](https://discourse.nodered.org/t/my-journey-into-the-bluetooth-world/16457 "2019-10-08T09:15:38Z")

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I just realised that there is no native Bluetooth node in NR. I have not really played with Bluetooth in the past, but as things go on. I've done a search but I don't know/understand which node I want/need. I get that…

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## [Problems with updating to Node-Red v1.0.1](https://discourse.nodered.org/t/problems-with-updating-to-node-red-v1-0-1/16453)

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**Author:** [@Piyush](https://discourse.nodered.org/u/Piyush)\
**Replies:** 8\
**Last updated:** [8 October 2019 08:56 UTC](https://discourse.nodered.org/t/problems-with-updating-to-node-red-v1-0-1/16453 "2019-10-08T08:56:55Z")

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Hello, I recently updated my node red version from 0.7.X to 1.0.1. I could see some problems with the OPCUA IIOT Inject contrib. I could not find the place to enter the data like name, node id etc. The help says that t…

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## [Could we have a setting for default debug windows to current node](https://discourse.nodered.org/t/could-we-have-a-setting-for-default-debug-windows-to-current-node/16419)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 24\
**Last updated:** [8 October 2019 08:49 UTC](https://discourse.nodered.org/t/could-we-have-a-setting-for-default-debug-windows-to-current-node/16419 "2019-10-08T08:49:57Z")

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I don't know about everyone else, but I always set my debug pane to current flow. Unfortunately, this gets reset back to all flows if I restart Node-RED. I'm asking if we could have a utilise a setting in setting.js to…

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## [My node-red-contrib-gpio cannot be install ,please help me,thank you very much](https://discourse.nodered.org/t/my-node-red-contrib-gpio-cannot-be-install-please-help-me-thank-you-very-much/16450)

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**Author:** [@shj-123558](https://discourse.nodered.org/u/shj-123558)\
**Replies:** 1\
**Last updated:** [8 October 2019 07:47 UTC](https://discourse.nodered.org/t/my-node-red-contrib-gpio-cannot-be-install-please-help-me-thank-you-very-much/16450 "2019-10-08T07:47:12Z")

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019-10-08T07:23:14.638Z 安装 : node-red-contrib-gpio 0.14.0 2019-10-08T07:23:14.673Z npm.cmd install --no-audit --no-update-notifier --save --save-prefix="~" --production node-red-contrib-gpio@0.14.0 2019-10-08T07:23:44.…

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## [Help - New to node red](https://discourse.nodered.org/t/help-new-to-node-red/16447)

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**Author:** [@Nka292](https://discourse.nodered.org/u/Nka292)\
**Replies:** 2\
**Last updated:** [8 October 2019 05:45 UTC](https://discourse.nodered.org/t/help-new-to-node-red/16447 "2019-10-08T05:45:42Z")

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Hi I have a neuro headset from emotiv(emotiv insight) which I want to use to control the actions of a raspberry pi robot car. I am completely new to node red and dont really have a great background in coding. It'd be gre…

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## [EmotivBCI Node-RED Toolbox](https://discourse.nodered.org/t/emotivbci-node-red-toolbox/5653)

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**Author:** [@Sin](https://discourse.nodered.org/u/Sin)\
**Replies:** 1\
**Last updated:** [8 October 2019 03:21 UTC](https://discourse.nodered.org/t/emotivbci-node-red-toolbox/5653 "2019-10-08T03:21:42Z")

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Hi everyone! Is anyone using node-red toolbox and EmotivBCI to train the mental command for any EEG project? Just wondering how to pass the training data of the mental commands to the Arduino.

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## [How can i run a nodejs server on a node-red flow](https://discourse.nodered.org/t/how-can-i-run-a-nodejs-server-on-a-node-red-flow/16433)

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**Author:** [@mittameijer](https://discourse.nodered.org/u/mittameijer)\
**Replies:** 2\
**Last updated:** [7 October 2019 23:21 UTC](https://discourse.nodered.org/t/how-can-i-run-a-nodejs-server-on-a-node-red-flow/16433 "2019-10-07T23:21:48Z")

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I have made a discord bot in nodejs. now i have the question how can i run it from node-red?

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## [Button send permanent 1](https://discourse.nodered.org/t/button-send-permanent-1/16064)

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**Author:** [@Mario](https://discourse.nodered.org/u/Mario)\
**Replies:** 5\
**Last updated:** [7 October 2019 20:51 UTC](https://discourse.nodered.org/t/button-send-permanent-1/16064 "2019-10-07T20:51:50Z")

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Hello I would like to send my button as soon as I let him number 0 again. at the moment it is so that he sends a 1 via modbus when clicking and then it stays that way. but I need to release again a 0.

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## [Ui\_date\_picker + ui\_text\_input (mode: time picker)](https://discourse.nodered.org/t/ui-date-picker-ui-text-input-mode-time-picker/16386)

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**Author:** [@mcj](https://discourse.nodered.org/u/mcj)\
**Replies:** 1\
**Last updated:** [7 October 2019 20:21 UTC](https://discourse.nodered.org/t/ui-date-picker-ui-text-input-mode-time-picker/16386 "2019-10-07T20:21:23Z")

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I am using ui\_date\_picker and an ui\_text\_input (mode: time picker) in order to get a specific data from the DB and put them in an ui\_chart. I realized one situation in the ui\_data\_picker. It returns the date, but it als…

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## [Do Inject Nodes use much bandwidth](https://discourse.nodered.org/t/do-inject-nodes-use-much-bandwidth/16440)

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**Author:** [@Exit2Studios](https://discourse.nodered.org/u/Exit2Studios)\
**Replies:** 4\
**Last updated:** [7 October 2019 19:45 UTC](https://discourse.nodered.org/t/do-inject-nodes-use-much-bandwidth/16440 "2019-10-07T19:45:06Z")

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Is it bad practice to utilize a bunch of inject nodes to do queries, html calls, etc on a regular interval? At what point does this start creating issues and performance degradation? Are multiple calls every 15 seconds…

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## [TypeError: done is not a function](https://discourse.nodered.org/t/typeerror-done-is-not-a-function/16284)

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**Author:** [@rcbuck](https://discourse.nodered.org/u/rcbuck)\
**Replies:** 25\
**Last updated:** [7 October 2019 16:02 UTC](https://discourse.nodered.org/t/typeerror-done-is-not-a-function/16284 "2019-10-07T16:02:17Z")

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I performed a new install of Raspian Buster and Node-RED yesterday. Everything went well with the installation, or so I thought. I am using the same Pi Zero W hardware for testing. I import my flow from the SD card that…

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## [Can I use c++ in node red?](https://discourse.nodered.org/t/can-i-use-c-in-node-red/16368)

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**Author:** [@16KYJ](https://discourse.nodered.org/u/16KYJ)\
**Replies:** 13\
**Last updated:** [7 October 2019 16:01 UTC](https://discourse.nodered.org/t/can-i-use-c-in-node-red/16368 "2019-10-07T16:01:05Z")

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I am a beginner of node-red and I want to use c++ language in node red. I found that I can use c++ code as modules in node.js project by c++ addon but I don't know how to utilize it with node red. I searched online an…

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## [Confused about MQTT \> InfluxDB](https://discourse.nodered.org/t/confused-about-mqtt-influxdb/16365)

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**Author:** [@clickworkorange](https://discourse.nodered.org/u/clickworkorange)\
**Replies:** 26\
**Last updated:** [7 October 2019 15:59 UTC](https://discourse.nodered.org/t/confused-about-mqtt-influxdb/16365 "2019-10-07T15:59:36Z")

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I'm new to InfluxDB, but it seems to me there's a bit of a conflict between Node-RED/MQTT's messaging structure and InfluxDB's "measurement" concept in that the former wants to be atomic while the latter expects multiple…

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## [Problem Delete File on Windows](https://discourse.nodered.org/t/problem-delete-file-on-windows/16400)

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**Author:** [@mrizkywiguna](https://discourse.nodered.org/u/mrizkywiguna)\
**Replies:** 14\
**Last updated:** [7 October 2019 15:55 UTC](https://discourse.nodered.org/t/problem-delete-file-on-windows/16400 "2019-10-07T15:55:00Z")

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Hi Guys, I have problem to delete the file that i created with node-red on Windows OS. I need delete the file scheduled to write new file again after deleted. Here is the error message: Error: EPERM: operation not perm…

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## [How to install the latest module version on Windows if plaette just shows the old one](https://discourse.nodered.org/t/how-to-install-the-latest-module-version-on-windows-if-plaette-just-shows-the-old-one/16396)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 6\
**Last updated:** [7 October 2019 14:15 UTC](https://discourse.nodered.org/t/how-to-install-the-latest-module-version-on-windows-if-plaette-just-shows-the-old-one/16396 "2019-10-07T14:15:47Z")

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Hi, there is a new version of a very powerful module, before installing it on RPi I want to test it on windows, but on the palette I can see only the previous version of 8 months ago. If I type the command npm install n…

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## [Maxlisteners in Logfiles?](https://discourse.nodered.org/t/maxlisteners-in-logfiles/16428)

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**Author:** [@nicedevil](https://discourse.nodered.org/u/nicedevil)\
**Replies:** 4\
**Last updated:** [7 October 2019 14:10 UTC](https://discourse.nodered.org/t/maxlisteners-in-logfiles/16428 "2019-10-07T14:10:25Z")

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Hey guys, I have a bit trouble again with my 8 shelly-plug-s. All of them send the powerusage to the mqtt broker and I have set up a Gauge and a Chart for every device and one Gauge/Chart for all of them (sum). After …

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## [Post to sql from array](https://discourse.nodered.org/t/post-to-sql-from-array/16418)

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**Author:** [@johnym30](https://discourse.nodered.org/u/johnym30)\
**Replies:** 16\
**Last updated:** [7 October 2019 13:40 UTC](https://discourse.nodered.org/t/post-to-sql-from-array/16418 "2019-10-07T13:40:23Z")

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hi everyone. Once more as i have just started using node red and i am not a programmer, i have some questions. I have the flow below \[{"id":"42edc0b9.7ba91","type":"tab","label":"Flow 2","disabled":false,"info":""},{"…

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## [RED.menu API and small update in addItem](https://discourse.nodered.org/t/red-menu-api-and-small-update-in-additem/16416)

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**Author:** [@Thierry](https://discourse.nodered.org/u/Thierry)\
**Replies:** 2\
**Last updated:** [7 October 2019 13:13 UTC](https://discourse.nodered.org/t/red-menu-api-and-small-update-in-additem/16416 "2019-10-07T13:13:55Z")

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Hi All, I am using editorTheme.page.scripts from the setting.js to customize the editor. I made some basic customization such as adding a button next to the "deploy" button, and some entries in hamburger menu for my ow…

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## [How do I use a variable in an object path with JSONata](https://discourse.nodered.org/t/how-do-i-use-a-variable-in-an-object-path-with-jsonata/16283)

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**Author:** [@Jamie](https://discourse.nodered.org/u/Jamie)\
**Replies:** 2\
**Last updated:** [7 October 2019 12:36 UTC](https://discourse.nodered.org/t/how-do-i-use-a-variable-in-an-object-path-with-jsonata/16283 "2019-10-07T12:36:27Z")

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I'm using the code below in a Change Node using JSONata to structure MySQL data to send to a graph node. Is there any way for me to add the column name into the object path from a flow variable? \[ { "series": \["B"\], …

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## [Example of using node-red-contrib-openid node](https://discourse.nodered.org/t/example-of-using-node-red-contrib-openid-node/16414)

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**Author:** [@artekw](https://discourse.nodered.org/u/artekw)\
**Replies:** 0\
**Last updated:** [7 October 2019 09:02 UTC](https://discourse.nodered.org/t/example-of-using-node-red-contrib-openid-node/16414 "2019-10-07T09:02:57Z")

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Hello, Can anyone share a flow of use node-red-contrib-openid node ?

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## [Basic fault finding guide](https://discourse.nodered.org/t/basic-fault-finding-guide/16411)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 0\
**Last updated:** [7 October 2019 08:17 UTC](https://discourse.nodered.org/t/basic-fault-finding-guide/16411 "2019-10-07T08:17:12Z")

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It's the start of a new academic year and I have a new group of students attending my IoT Club. To help them get their very first node to work I recently wrote this tutorial guide. I was amazed how many things can be o…

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## [Set payload from exec node to title bar](https://discourse.nodered.org/t/set-payload-from-exec-node-to-title-bar/16399)

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**Author:** [@anisa](https://discourse.nodered.org/u/anisa)\
**Replies:** 2\
**Last updated:** [7 October 2019 07:40 UTC](https://discourse.nodered.org/t/set-payload-from-exec-node-to-title-bar/16399 "2019-10-07T07:40:14Z")

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Hi, how to insert the payload from exec node to top bar next to title name? \[{"id":"7eab7f9d.5ee76","type":"debug","z":"41423f06.c6d6b","name":"","active":true,"tosidebar":false,"console":false,"tostatus":true,"complete…

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## [Possible bug on Slider with "output only on release"](https://discourse.nodered.org/t/possible-bug-on-slider-with-output-only-on-release/11795)

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**Author:** [@allebarbieri](https://discourse.nodered.org/u/allebarbieri)\
**Replies:** 2\
**Last updated:** [7 October 2019 07:38 UTC](https://discourse.nodered.org/t/possible-bug-on-slider-with-output-only-on-release/11795 "2019-10-07T07:38:03Z")

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I was wondering if you guys have the same problem on the dashboard slider when in mode "only on release": in my case it seems it seems not to work when you move the slider and you release the mouse button outside the sl…

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## ["only on release" slider does not generate messages](https://discourse.nodered.org/t/only-on-release-slider-does-not-generate-messages/16402)

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**Author:** [@tomek](https://discourse.nodered.org/u/tomek)\
**Replies:** 3\
**Last updated:** [7 October 2019 07:36 UTC](https://discourse.nodered.org/t/only-on-release-slider-does-not-generate-messages/16402 "2019-10-07T07:36:16Z")

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Hello, Whenever I use an "only on release" slider on a mobile device, it never sends a message on an actual release. It seems that mobile on-release action differs from the desktop on-release. To reproduce: create an…

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## [S7-1200 read variable](https://discourse.nodered.org/t/s7-1200-read-variable/16183)

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**Author:** [@digidax](https://discourse.nodered.org/u/digidax)\
**Replies:** 15\
**Last updated:** [7 October 2019 06:55 UTC](https://discourse.nodered.org/t/s7-1200-read-variable/16183 "2019-10-07T06:55:49Z")

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Hello, Have started for my first project with node red: System: CentOS 7 Nodejs: 2:10.16.3 Node Red: v1.0.0 S7-1200 CPU1214C, Firmware 4.1 Have configured S7In from node-red-contrib-s7 and connected to debug in Flo…

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## [Node-Red in Endless-Loop](https://discourse.nodered.org/t/node-red-in-endless-loop/16394)

<div class="topic-metadata">

**Author:** [@little.yoda](https://discourse.nodered.org/u/little.yoda)\
**Replies:** 3\
**Last updated:** [7 October 2019 05:23 UTC](https://discourse.nodered.org/t/node-red-in-endless-loop/16394 "2019-10-07T05:23:38Z")

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Hi my Node-Red is caught in an endless-loop. The syslog file is flooded with the messages below. Is there an easy way to identify "function:5bb23ebd.29c638"? I'm aware of the --safe parameter, but as I have over 20 fl…

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## [Problems with chart node (multiple lines)](https://discourse.nodered.org/t/problems-with-chart-node-multiple-lines/16380)

<div class="topic-metadata">

**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 3\
**Last updated:** [6 October 2019 21:14 UTC](https://discourse.nodered.org/t/problems-with-chart-node-multiple-lines/16380 "2019-10-06T21:14:09Z")

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I got no success with a chart, using multiple lines. Maybe some can help. This is what I have: picture 1 picture 2 var dataArray = \[\[\]\]; var seriesArray = \[\]; var labelsArray = \[""\]; for (i=0; i\< 5; i++) { var…

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