# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=162

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

**Page:** 163

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## [Cronplus no message after node-red reboot](https://discourse.nodered.org/t/cronplus-no-message-after-node-red-reboot/82622)

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**Author:** [@janwolf](https://discourse.nodered.org/u/janwolf)\
**Replies:** 4\
**Last updated:** [5 November 2023 20:51 UTC](https://discourse.nodered.org/t/cronplus-no-message-after-node-red-reboot/82622 "2023-11-05T20:51:48Z")

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Is there a way when using cronplus that it will send at reboot the actual playload of schedule activated ?

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## [Insert data to oracle database with oracledb-mod](https://discourse.nodered.org/t/insert-data-to-oracle-database-with-oracledb-mod/82611)

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**Author:** [@robsonsilva](https://discourse.nodered.org/u/robsonsilva)\
**Replies:** 4\
**Last updated:** [5 November 2023 17:51 UTC](https://discourse.nodered.org/t/insert-data-to-oracle-database-with-oracledb-mod/82611 "2023-11-05T17:51:30Z")

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Hello everyone. First of all I'm a newbie using node-red. I'm trying to insert some data into oracle database using oracledb-mod. As you can see on prints I'm facing some errors to just to insert. I had success to selec…

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## [Cronplus node schedule(s) state at boot](https://discourse.nodered.org/t/cronplus-node-schedule-s-state-at-boot/82594)

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**Author:** [@biros](https://discourse.nodered.org/u/biros)\
**Replies:** 26\
**Last updated:** [5 November 2023 16:43 UTC](https://discourse.nodered.org/t/cronplus-node-schedule-s-state-at-boot/82594 "2023-11-05T16:43:32Z")

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hi, the cronplus node does not retain the stop/start state of the schedules after a reboot. i have a cronplus node set up with 3 different schedules and if i stop let's say the first then reboot the raspberry pi, all 3…

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## [Using Node-Red instead of curl for a api request](https://discourse.nodered.org/t/using-node-red-instead-of-curl-for-a-api-request/82623)

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**Author:** [@seballa](https://discourse.nodered.org/u/seballa)\
**Replies:** 4\
**Last updated:** [5 November 2023 15:21 UTC](https://discourse.nodered.org/t/using-node-red-instead-of-curl-for-a-api-request/82623 "2023-11-05T15:21:49Z")

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I came across node-red with a flow which is reading out charging values from my SMA wallbox. The flow was pre configured. From that starting point I played around a lot, dove into node-red, looked at all parts of the flo…

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## [Not able to install node-red-contrib-dmxusbpro](https://discourse.nodered.org/t/not-able-to-install-node-red-contrib-dmxusbpro/82617)

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**Author:** [@RichardSchouw](https://discourse.nodered.org/u/RichardSchouw)\
**Replies:** 5\
**Last updated:** [5 November 2023 12:10 UTC](https://discourse.nodered.org/t/not-able-to-install-node-red-contrib-dmxusbpro/82617 "2023-11-05T12:10:26Z")

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Hello everyone, When trying to install "node-red-contrib-dmxusbpro" i am getting big errors. I don't have the knowledge to troubleshoot it myself. Hopefully someone can help me out here! This is the error that i get: 5…

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## [Problems with run node red start](https://discourse.nodered.org/t/problems-with-run-node-red-start/82610)

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**Author:** [@jacol184](https://discourse.nodered.org/u/jacol184)\
**Replies:** 4\
**Last updated:** [5 November 2023 08:53 UTC](https://discourse.nodered.org/t/problems-with-run-node-red-start/82610 "2023-11-05T08:53:24Z")

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Suddenly my node red stopped working, reinstalling does not solve the problem : logs i Node-RED works better with the Firefox or Chrome browser Use node-red-stop to stop Node-RED Use node…

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## [OPC DA Client or Gateway](https://discourse.nodered.org/t/opc-da-client-or-gateway/8335)

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**Author:** [@vloecken](https://discourse.nodered.org/u/vloecken)\
**Replies:** 26\
**Last updated:** [5 November 2023 06:28 UTC](https://discourse.nodered.org/t/opc-da-client-or-gateway/8335 "2023-11-05T06:28:14Z")

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Hi, does anyone know a way to get data from a OPC DA Server. Or does someone know another software as a Gateway OPC DA to UA or to OPC UA ? I need to get Data from a OPC DA to the cloud.

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## [Function Node error](https://discourse.nodered.org/t/function-node-error/82433)

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**Author:** [@klio-klio](https://discourse.nodered.org/u/klio-klio)\
**Replies:** 19\
**Last updated:** [4 November 2023 20:51 UTC](https://discourse.nodered.org/t/function-node-error/82433 "2023-11-04T20:51:47Z")

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Hello, can someone help me..... I want to write function node. First true signal is forwarded. after that, all signals are blocked for 30 seconds. After that, all signals are forwarded. With False, Function Node will b…

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## [Trigger-Node question](https://discourse.nodered.org/t/trigger-node-question/82602)

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**Author:** [@xytsrm](https://discourse.nodered.org/u/xytsrm)\
**Replies:** 2\
**Last updated:** [4 November 2023 14:14 UTC](https://discourse.nodered.org/t/trigger-node-question/82602 "2023-11-04T14:14:38Z")

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I was hoping that sending a null to a trigger-node would prevent it from triggering; it does not. I've since used a switch-node to filter flow. But, am I missing something; is there an easier way to stop a trigger-node f…

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## [Converting an uint32sw value (2 read modbus registers) to float](https://discourse.nodered.org/t/converting-an-uint32sw-value-2-read-modbus-registers-to-float/82595)

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**Author:** [@americanium](https://discourse.nodered.org/u/americanium)\
**Replies:** 9\
**Last updated:** [4 November 2023 13:29 UTC](https://discourse.nodered.org/t/converting-an-uint32sw-value-2-read-modbus-registers-to-float/82595 "2023-11-04T13:29:24Z")

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Hello! I am getting information via Modbus from my pv inverter. The value "total\_power\_export" is stored in 2 registers as uint32sw. How can i parse this information in a float value? I tried a function with some code…

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## [Always indicate "stopped" for my remote-access node](https://discourse.nodered.org/t/always-indicate-stopped-for-my-remote-access-node/82596)

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**Author:** [@henrychanflag](https://discourse.nodered.org/u/henrychanflag)\
**Replies:** 2\
**Last updated:** [4 November 2023 08:35 UTC](https://discourse.nodered.org/t/always-indicate-stopped-for-my-remote-access-node/82596 "2023-11-04T08:35:22Z")

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Hi, I've used Remote-red some time ago and it was fine. However, today I want to use again, I find that the remote-access node always showing "stopped". I've already udpated the latest version of this node. However, it…

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## [Error adding flows Cannot read properties of undefined (reading 'substring')](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592)

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**Author:** [@ksalhoff](https://discourse.nodered.org/u/ksalhoff)\
**Replies:** 1\
**Last updated:** [3 November 2023 21:56 UTC](https://discourse.nodered.org/t/error-adding-flows-cannot-read-properties-of-undefined-reading-substring/82592 "2023-11-03T21:56:35Z")

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On startup, I'm seeing this message on the dashboard and no flows are showing / loading:

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## [Sunset-Sunrise time period detection](https://discourse.nodered.org/t/sunset-sunrise-time-period-detection/82579)

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**Author:** [@xytsrm](https://discourse.nodered.org/u/xytsrm)\
**Replies:** 9\
**Last updated:** [3 November 2023 21:35 UTC](https://discourse.nodered.org/t/sunset-sunrise-time-period-detection/82579 "2023-11-03T21:35:56Z")

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I currently have a process that has a random event that turns on a lamp, but I want that lamp only to turn on between sunset & sunrise. Ideally I would prefer a node that would pass an input to the output between sunris…

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## [Have I been hacked?](https://discourse.nodered.org/t/have-i-been-hacked/82408)

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**Author:** [@muggins](https://discourse.nodered.org/u/muggins)\
**Replies:** 61\
**Last updated:** [3 November 2023 18:13 UTC](https://discourse.nodered.org/t/have-i-been-hacked/82408 "2023-11-03T18:13:53Z")

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My RPI had been acting up and upon investigation my flows.json file was empty. I restored the backup file only to find that lots of the nodes were way off the bottom right of the screen and unreachable. I examined the fl…

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## [Force disconnection of TCP connection](https://discourse.nodered.org/t/force-disconnection-of-tcp-connection/82436)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 31\
**Last updated:** [3 November 2023 18:04 UTC](https://discourse.nodered.org/t/force-disconnection-of-tcp-connection/82436 "2023-11-03T18:04:55Z")

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In my fun MQTT broker project, part of the MQTT spec is to force a disconnection to a connected client from my broker under certain circumstances. I don't think it looks possible to do that with the TCP nodes but just a…

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## [Trouble with timezone in Node-Red, Docker, Synology NAS](https://discourse.nodered.org/t/trouble-with-timezone-in-node-red-docker-synology-nas/81998)

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**Author:** [@Daniel-WW](https://discourse.nodered.org/u/Daniel-WW)\
**Replies:** 7\
**Last updated:** [3 November 2023 17:27 UTC](https://discourse.nodered.org/t/trouble-with-timezone-in-node-red-docker-synology-nas/81998 "2023-11-03T17:27:31Z")

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Hello, I'm running node-red in a docker container on a Synology NAS. Unfortunately, I'm not able to set the right, local Timezone (Europe/Berlin). I mounted the following Volumes - /etc/TZ:/etc/timezone:ro …

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## [Using Influxdb node in a subflow - cannot set scope of config node](https://discourse.nodered.org/t/using-influxdb-node-in-a-subflow-cannot-set-scope-of-config-node/82499)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 4\
**Last updated:** [3 November 2023 16:10 UTC](https://discourse.nodered.org/t/using-influxdb-node-in-a-subflow-cannot-set-scope-of-config-node/82499 "2023-11-03T16:10:52Z")

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If I add an MQTT node to a subflow, then in the server setup I select to add a new server, then at the bottom of config node's edit screen I get a dropdown that allows me to select the subflow as the context for the node…

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## [Control TAPO devices cloudless](https://discourse.nodered.org/t/control-tapo-devices-cloudless/82577)

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**Author:** [@zisco67](https://discourse.nodered.org/u/zisco67)\
**Replies:** 1\
**Last updated:** [3 November 2023 14:49 UTC](https://discourse.nodered.org/t/control-tapo-devices-cloudless/82577 "2023-11-03T14:49:19Z")

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I want to control my devices of course cloudless; that's why I'm wondering that, for instance, the Tapo node requires my tapo-credentials as well as the local ip of the device? Any further information?

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## [Unable to pull docker image](https://discourse.nodered.org/t/unable-to-pull-docker-image/82574)

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**Author:** [@tnowak](https://discourse.nodered.org/u/tnowak)\
**Replies:** 2\
**Last updated:** [3 November 2023 12:19 UTC](https://discourse.nodered.org/t/unable-to-pull-docker-image/82574 "2023-11-03T12:19:28Z")

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Hi, I have a strange issue I can't solve myself. I'm was unable to upgrade node-red docker doing a pull so I've removed it and I've found I can't create a new one: Portainer says no such image: Meantime in the sy…

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## [\[Article\] Node-RED Development: The Numbers](https://discourse.nodered.org/t/article-node-red-development-the-numbers/82554)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 10\
**Last updated:** [3 November 2023 11:52 UTC](https://discourse.nodered.org/t/article-node-red-development-the-numbers/82554 "2023-11-03T11:52:00Z")

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Hi There! Following up on a discussion had over here, I wrote an article on analysing Node-RED Development by numbers. It's a collection of my interpretations of those numbers, there is a link in the article to the flo…

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## [Sharing flows requiring contrib nodes](https://discourse.nodered.org/t/sharing-flows-requiring-contrib-nodes/82446)

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**Author:** [@greengolfer](https://discourse.nodered.org/u/greengolfer)\
**Replies:** 4\
**Last updated:** [3 November 2023 11:22 UTC](https://discourse.nodered.org/t/sharing-flows-requiring-contrib-nodes/82446 "2023-11-03T11:22:06Z")

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Hello, A similar question has been asked in the past... Just want to check if there are some recent changes I may have missed. I would like to share flows that require contrib nodes to work. Importing the flows in a d…

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## [Error when including emoji in filename for write-file - NodeJS 20 only](https://discourse.nodered.org/t/error-when-including-emoji-in-filename-for-write-file-nodejs-20-only/82556)

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**Author:** [@RvG](https://discourse.nodered.org/u/RvG)\
**Replies:** 6\
**Last updated:** [3 November 2023 10:47 UTC](https://discourse.nodered.org/t/error-when-including-emoji-in-filename-for-write-file-nodejs-20-only/82556 "2023-11-03T10:47:44Z")

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I'm getting the following error when including an emoji in the filename for the write-file node: failed to write to file: Error: ENOENT: no such file or directory, open I've only seen this in Node-RED 3.10 on Windows…

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## [Writing Insert query inside node-red-contrib-oracledb-mod](https://discourse.nodered.org/t/writing-insert-query-inside-node-red-contrib-oracledb-mod/13390)

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**Author:** [@Divya](https://discourse.nodered.org/u/Divya)\
**Replies:** 23\
**Last updated:** [3 November 2023 10:08 UTC](https://discourse.nodered.org/t/writing-insert-query-inside-node-red-contrib-oracledb-mod/13390 "2023-11-03T10:08:57Z")

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Hello, I am trying to make use of node-red-contrib-oracledb-mod to connect to the Oracle db and access datas. I am able to connect it successfully and write select queries and getting the proper results. But, not able to…

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## [\[Fun Exercise\]Make an MQTT broker in Node-RED](https://discourse.nodered.org/t/fun-exercise-make-an-mqtt-broker-in-node-red/82229)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 62\
**Last updated:** [3 November 2023 10:00 UTC](https://discourse.nodered.org/t/fun-exercise-make-an-mqtt-broker-in-node-red/82229 "2023-11-03T10:00:39Z")

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For fun, I thought - let's build an MQTT broker in Node-RED! :slight\_smile: Anyway, I soon realised that I didn't know how to setup the TCP nodes properly - I often get confused by them :frowning: Can someone clue me i…

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## [ModBus speed problem](https://discourse.nodered.org/t/modbus-speed-problem/82565)

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**Author:** [@andre\_x](https://discourse.nodered.org/u/andre_x)\
**Replies:** 2\
**Last updated:** [3 November 2023 09:09 UTC](https://discourse.nodered.org/t/modbus-speed-problem/82565 "2023-11-03T09:09:30Z")

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I have a couple of these RS485 relay boards, connected to these Ethernet to RS485 converter. The first problem that I see is that reading a 8 bit register every 0,1 second makes impossible to send the relay commands: wh…

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## [OPCUA SERVER from a Docker. BadCommunicationError](https://discourse.nodered.org/t/opcua-server-from-a-docker-badcommunicationerror/82559)

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**Author:** [@Ahmaad](https://discourse.nodered.org/u/Ahmaad)\
**Replies:** 2\
**Last updated:** [3 November 2023 09:37 UTC](https://discourse.nodered.org/t/opcua-server-from-a-docker-badcommunicationerror/82559 "2023-11-03T09:37:09Z")

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Hello, I installed docker desktop then I installed nodered. I used the following from NodeRed for this: docker run -it -p 1880:1880 -v node\_red\_data:/data --name mynodered nodered/node-red Now I want to set up OPC…

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## [Crazy idea to use link calls from Blockly nodes](https://discourse.nodered.org/t/crazy-idea-to-use-link-calls-from-blockly-nodes/82409)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 18\
**Last updated:** [3 November 2023 09:11 UTC](https://discourse.nodered.org/t/crazy-idea-to-use-link-calls-from-blockly-nodes/82409 "2023-11-03T09:11:13Z")

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Just writing this down in case I forget just had an idea for doing a link call from within the node

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## [Array and table Ui problem](https://discourse.nodered.org/t/array-and-table-ui-problem/82492)

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**Author:** [@MA.ING](https://discourse.nodered.org/u/MA.ING)\
**Replies:** 4\
**Last updated:** [3 November 2023 08:46 UTC](https://discourse.nodered.org/t/array-and-table-ui-problem/82492 "2023-11-03T08:46:16Z")

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Hi, I restarted node red node again and I'm lost after so long, Im trying to represent a machine state in a table, i have one array: msg.payload : array\[3\] array\[3\] 0: "2023-10-31T14:17:02.515Z" 1: "Start" 2: "4" …

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## [Problem with PIR en Lamp](https://discourse.nodered.org/t/problem-with-pir-en-lamp/82551)

<div class="topic-metadata">

**Author:** [@kroonp](https://discourse.nodered.org/u/kroonp)\
**Replies:** 2\
**Last updated:** [3 November 2023 06:23 UTC](https://discourse.nodered.org/t/problem-with-pir-en-lamp/82551 "2023-11-03T06:23:13Z")

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Hello all, I'm trying to make a circuit but it won't work. The idea is that a PIR switches on a lamp and switches it off after 4 minutes. This is no problem. I want to ensure that as soon as the PIR is triggered within…

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## [No topic causes all MQTT nodes to disconnect](https://discourse.nodered.org/t/no-topic-causes-all-mqtt-nodes-to-disconnect/82557)

<div class="topic-metadata">

**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 4\
**Last updated:** [3 November 2023 00:13 UTC](https://discourse.nodered.org/t/no-topic-causes-all-mqtt-nodes-to-disconnect/82557 "2023-11-03T00:13:58Z")

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Just noticed that injecting a message into MQTT out without setting a topic causes all MQTT nodes to disconnect for a few seconds. I realise it should have a topic, but the node should really handle this more gracefully…

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