# Industrial

**URL:** https://discourse.nodered.org/c/industrial/18.md?page=9

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

**Page:** 10

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## [Creating JSON Object with Buttons, Sliders and Text Inputs](https://discourse.nodered.org/t/creating-json-object-with-buttons-sliders-and-text-inputs/66750)

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**Author:** [@mihaila-andreas](https://discourse.nodered.org/u/mihaila-andreas)\
**Replies:** 1\
**Last updated:** [22 August 2022 13:19 UTC](https://discourse.nodered.org/t/creating-json-object-with-buttons-sliders-and-text-inputs/66750 "2022-08-22T13:19:38Z")

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Hi there, I was wondering how I can create a JSON Object wit some dynamic inputs (buttons, sliders, and texts). I was trying to solve that in order to use a function to build the Object but unfortunately it does not wo…

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## [Rapid development platform of Internet of things based on node red](https://discourse.nodered.org/t/rapid-development-platform-of-internet-of-things-based-on-node-red/66558)

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**Author:** [@iotfast](https://discourse.nodered.org/u/iotfast)\
**Replies:** 2\
**Last updated:** [18 August 2022 01:17 UTC](https://discourse.nodered.org/t/rapid-development-platform-of-internet-of-things-based-on-node-red/66558 "2022-08-18T01:17:11Z")

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IOT fast, a rapid development platform for Internet of things based on node red, is a full process low code IOT platform, It provides rich equipment acquisition and control protocols (Modbus RTU, Modbus TCP, opcua, S7, F…

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## [OMRON FINS Reading REAL & STRING Data Types](https://discourse.nodered.org/t/omron-fins-reading-real-string-data-types/66038)

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**Author:** [@mihaila-andreas](https://discourse.nodered.org/u/mihaila-andreas)\
**Replies:** 6\
**Last updated:** [10 August 2022 06:50 UTC](https://discourse.nodered.org/t/omron-fins-reading-real-string-data-types/66038 "2022-08-10T06:50:28Z")

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Hi there, Just wanted to know how I can read STRING and REAL data types via FINS. INT and BOOL are working fine. Do I need to parser it? Does somebody have got some example nodes? Best thanks in advance Andy

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## [Reading a .mdb file](https://discourse.nodered.org/t/reading-a-mdb-file/65659)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 17\
**Last updated:** [6 August 2022 03:30 UTC](https://discourse.nodered.org/t/reading-a-mdb-file/65659 "2022-08-06T03:30:38Z")

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Hi, I have an equipment that writes to an .mdb file. I believe that this is a type of database. Can you suggest any node or any other way that I can read the latest entry in the file. Thank you

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## [OMRON EIP CIP Command communication timeout](https://discourse.nodered.org/t/omron-eip-cip-command-communication-timeout/66039)

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**Author:** [@mihaila-andreas](https://discourse.nodered.org/u/mihaila-andreas)\
**Replies:** 0\
**Last updated:** [4 August 2022 20:13 UTC](https://discourse.nodered.org/t/omron-eip-cip-command-communication-timeout/66039 "2022-08-04T20:13:37Z")

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Hi there, I was trying to connect my node red pc to a NX and NJ OMRON PLC and had success. Unfortunately, I do not have the same success with a CJ2M PLC which has a built in EIP Port. Always getting timeout error .. D…

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## [Write string value to OPC UA Server - contrib-opcua-server](https://discourse.nodered.org/t/write-string-value-to-opc-ua-server-contrib-opcua-server/63539)

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**Author:** [@atravel](https://discourse.nodered.org/u/atravel)\
**Replies:** 2\
**Last updated:** [2 August 2022 17:43 UTC](https://discourse.nodered.org/t/write-string-value-to-opc-ua-server-contrib-opcua-server/63539 "2022-08-02T17:43:12Z")

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Hello, I'm trying to let a Client node write a value to a variable of the address space in my OPC UA server. As long as the variable in the Server is specified as Integer, Double, etc. everything works fine. I can writ…

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## [Saving a bas64 string to an image file](https://discourse.nodered.org/t/saving-a-bas64-string-to-an-image-file/65729)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 3\
**Last updated:** [28 July 2022 06:25 UTC](https://discourse.nodered.org/t/saving-a-bas64-string-to-an-image-file/65729 "2022-07-28T06:25:49Z")

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I am trying to save the image from a camera as an image file(.jpeg). I currently ,I'm getting it as as base64 string. This was achieved by referring to the following link I can use the following website to convert the…

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## [How to detect a mounted share folder is still connected](https://discourse.nodered.org/t/how-to-detect-a-mounted-share-folder-is-still-connected/65400)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 1\
**Last updated:** [21 July 2022 07:34 UTC](https://discourse.nodered.org/t/how-to-detect-a-mounted-share-folder-is-still-connected/65400 "2022-07-21T07:34:55Z")

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Hi Is there a way for node red to detect if the mounted share folder is disconnected. The folder is mounted to a linux based device CIFS-Install which has node red installed in it When I use the read file node,it do…

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## [How to detect when a Modbus value becomes stale?](https://discourse.nodered.org/t/how-to-detect-when-a-modbus-value-becomes-stale/65375)

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**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 10\
**Last updated:** [20 July 2022 20:56 UTC](https://discourse.nodered.org/t/how-to-detect-when-a-modbus-value-becomes-stale/65375 "2022-07-20T20:56:55Z")

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I have a simple flow (pasted below, screenshot as well) that grabs Modbus data for a variable frequency drive (VFD) every 30 seconds via Modbus-TCP. Works great, however... Yesterday we saw this in Influx: We have …

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## [Modbus 32 Bit Float to an INT](https://discourse.nodered.org/t/modbus-32-bit-float-to-an-int/64854)

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**Author:** [@bceyresy](https://discourse.nodered.org/u/bceyresy)\
**Replies:** 2\
**Last updated:** [20 July 2022 11:50 UTC](https://discourse.nodered.org/t/modbus-32-bit-float-to-an-int/64854 "2022-07-20T11:50:43Z")

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Hi, I have a power meter which I am pulling readings from via Modbus TCP. The data is in float & I need to put the 2 registers together then convert it to an integer. just a note, I had to click the data in the array t…

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## [S7 node best practices](https://discourse.nodered.org/t/s7-node-best-practices/65312)

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**Author:** [@horsewithnoname](https://discourse.nodered.org/u/horsewithnoname)\
**Replies:** 0\
**Last updated:** [19 July 2022 10:28 UTC](https://discourse.nodered.org/t/s7-node-best-practices/65312 "2022-07-19T10:28:04Z")

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Hi. I have 3 units of Siemens LOGO PLCs, 3 units of Data acquisition devices (communicating with PLCs via MODBUS-TCP) and 1 RPi 4 (commuicating with all the LOGO PLCs) in my network. Currently, I am using several s7 in …

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## [Adding authentication for REST API](https://discourse.nodered.org/t/adding-authentication-for-rest-api/65293)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 4\
**Last updated:** [19 July 2022 06:26 UTC](https://discourse.nodered.org/t/adding-authentication-for-rest-api/65293 "2022-07-19T06:26:25Z")

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Hi I am trying to set up REST api in my node red. I want to set authentication but Im not sure how to do this. In the 'http request' node, Im able to put in authentication to GET/POST from external server. However, if …

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## [MQTT broker messages getting lost](https://discourse.nodered.org/t/mqtt-broker-messages-getting-lost/65095)

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**Author:** [@KarolisL](https://discourse.nodered.org/u/KarolisL)\
**Replies:** 16\
**Last updated:** [15 July 2022 19:26 UTC](https://discourse.nodered.org/t/mqtt-broker-messages-getting-lost/65095 "2022-07-15T19:26:22Z")

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Hello, I've created a test case with NR to check how our broker can handle big quantities of data. In flow bellow there are 10 flows each containing, 200 clients, every client sends 20topics. I cannot copy paste all f…

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## [Node red to S7 PLC error \[0x8104\]](https://discourse.nodered.org/t/node-red-to-s7-plc-error-0x8104/65026)

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**Author:** [@Vctr32](https://discourse.nodered.org/u/Vctr32)\
**Replies:** 5\
**Last updated:** [13 July 2022 18:44 UTC](https://discourse.nodered.org/t/node-red-to-s7-plc-error-0x8104/65026 "2022-07-13T18:44:36Z")

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Hi, I'm using a pc with windows 7 as my nodered host, and connecting to a S7 416-3 via ethernet through a CP 443-1. I've already created some variables, ( DBW and DBX) and I can write the Int numbers in the DBW and als…

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## [TCP IP Scanner Losing Connection](https://discourse.nodered.org/t/tcp-ip-scanner-losing-connection/65010)

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**Author:** [@jts450](https://discourse.nodered.org/u/jts450)\
**Replies:** 2\
**Last updated:** [12 July 2022 16:20 UTC](https://discourse.nodered.org/t/tcp-ip-scanner-losing-connection/65010 "2022-07-12T16:20:24Z")

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I am having issues with losing my connection to a TCP IP barcode scanner on port 51240, It works for a while but then the node shows disconnected. Once i restart the scanner it so far always starts working again for x am…

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## [Usb printer zebra gk420t](https://discourse.nodered.org/t/usb-printer-zebra-gk420t/64970)

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**Author:** [@denissanga](https://discourse.nodered.org/u/denissanga)\
**Replies:** 0\
**Last updated:** [11 July 2022 19:45 UTC](https://discourse.nodered.org/t/usb-printer-zebra-gk420t/64970 "2022-07-11T19:45:40Z")

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I all I have a ZEBRA GK420t connected to iot2050 with usb cable and I would like print with node-red I try set up printer with cups driver and I obtain : usb://Zebra%20Technologies/ZTC%20GK420t?serial=29J185204348 lp…

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## [Which database to choose for storing data (noob-friendly)](https://discourse.nodered.org/t/which-database-to-choose-for-storing-data-noob-friendly/64073)

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**Author:** [@Bastian](https://discourse.nodered.org/u/Bastian)\
**Replies:** 4\
**Last updated:** [11 July 2022 09:35 UTC](https://discourse.nodered.org/t/which-database-to-choose-for-storing-data-noob-friendly/64073 "2022-07-11T09:35:29Z")

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Hi guys, I'm searching for a database to store measurements and time series data and wanted to hear if there is that one DB to choose for this purpose. I'm not a programmer but I have some experiences with Node-RED, py…

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## [OPC UA read data only when it changes](https://discourse.nodered.org/t/opc-ua-read-data-only-when-it-changes/62286)

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**Author:** [@obi1987](https://discourse.nodered.org/u/obi1987)\
**Replies:** 6\
**Last updated:** [5 July 2022 09:54 UTC](https://discourse.nodered.org/t/opc-ua-read-data-only-when-it-changes/62286 "2022-07-05T09:54:33Z")

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Hi, I want to read data only when it get changes in PLCs. Anyone have the idea?

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## [Reading/Writing to csv file in an external device](https://discourse.nodered.org/t/reading-writing-to-csv-file-in-an-external-device/64602)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 1\
**Last updated:** [2 July 2022 06:27 UTC](https://discourse.nodered.org/t/reading-writing-to-csv-file-in-an-external-device/64602 "2022-07-02T06:27:31Z")

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Hi, Currently, I am able to read/write csv data directly within the local device. However, I am trying to read/write csv file from external device(PC with a shared folder) within the network. I am able to ping the exte…

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## [Connection from node Red to MSSQL not working](https://discourse.nodered.org/t/connection-from-node-red-to-mssql-not-working/64529)

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**Author:** [@dinesh](https://discourse.nodered.org/u/dinesh)\
**Replies:** 3\
**Last updated:** [1 July 2022 02:24 UTC](https://discourse.nodered.org/t/connection-from-node-red-to-mssql-not-working/64529 "2022-07-01T02:24:37Z")

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I am trying to connect node red to MSSQL but it is giving error:"ConnectionError: Login failed for user 'Administrator'." My node red is in a separate device while the database is in PC but connected via ethernet. I ha…

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## [Link tags between 2 PLC that not in the same network](https://discourse.nodered.org/t/link-tags-between-2-plc-that-not-in-the-same-network/63993)

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**Author:** [@sawal](https://discourse.nodered.org/u/sawal)\
**Replies:** 11\
**Last updated:** [30 June 2022 01:32 UTC](https://discourse.nodered.org/t/link-tags-between-2-plc-that-not-in-the-same-network/63993 "2022-06-30T01:32:53Z")

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Is it possible to develop nanopi r2s become device that can link tags between 2 PLC that is not in the same network group... for this project I need also create the nanopi r2s EDS file which it will be use by the PLC net…

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## [Parse PLC tag value from OMRON Fins node](https://discourse.nodered.org/t/parse-plc-tag-value-from-omron-fins-node/64443)

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**Author:** [@sahsha](https://discourse.nodered.org/u/sahsha)\
**Replies:** 7\
**Last updated:** [29 June 2022 15:40 UTC](https://discourse.nodered.org/t/parse-plc-tag-value-from-omron-fins-node/64443 "2022-06-29T15:40:56Z")

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Need help to parse string Using OMRON fins node I'm reading tag values but I'm not able to parse them can any one help. like the tag D2020 value 14384 should be 0800. I've tried to parse but not able to get results.

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## [Omron NJ OPC UA write to the PLC not working](https://discourse.nodered.org/t/omron-nj-opc-ua-write-to-the-plc-not-working/64446)

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**Author:** [@AMSMARTINS](https://discourse.nodered.org/u/AMSMARTINS)\
**Replies:** 8\
**Last updated:** [28 June 2022 14:38 UTC](https://discourse.nodered.org/t/omron-nj-opc-ua-write-to-the-plc-not-working/64446 "2022-06-28T14:38:54Z")

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Hi all. After trying everything , I get into a dead end. I know there is some similar topics on this forum but I tried everything and so far no luck to get the OPCUA to write values into the plc. I tried with the OCPU…

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## [Installing Node-Red on work windows machine](https://discourse.nodered.org/t/installing-node-red-on-work-windows-machine/63982)

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**Author:** [@jts450](https://discourse.nodered.org/u/jts450)\
**Replies:** 32\
**Last updated:** [22 June 2022 08:59 UTC](https://discourse.nodered.org/t/installing-node-red-on-work-windows-machine/63982 "2022-06-22T08:59:27Z")

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I am having to installing everything necessary for all available nod-red nodes on a windows work machine. First of all I cant install Chocolatey which includes all of the necessary tools on my work machine due to securit…

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## [OPCUA Write ExtensionObject (nodered-\>PLC)](https://discourse.nodered.org/t/opcua-write-extensionobject-nodered-plc/64160)

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**Author:** [@aitor](https://discourse.nodered.org/u/aitor)\
**Replies:** 1\
**Last updated:** [22 June 2022 08:56 UTC](https://discourse.nodered.org/t/opcua-write-extensionobject-nodered-plc/64160 "2022-06-22T08:56:50Z")

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Hello there, I'm currently working with a Siemens PLC 1513 with OPCUA server and node-red-contrib-opcua:0.2.279 for communication. I'm interesed writting a ExtensionObject datatype variable that I can currently read bu…

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## [Adding items to opc-ua server contrib-opcua](https://discourse.nodered.org/t/adding-items-to-opc-ua-server-contrib-opcua/61906)

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**Author:** [@nico25](https://discourse.nodered.org/u/nico25)\
**Replies:** 9\
**Last updated:** [22 June 2022 08:45 UTC](https://discourse.nodered.org/t/adding-items-to-opc-ua-server-contrib-opcua/61906 "2022-06-22T08:45:12Z")

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Hi all, we installed counters for compressed-air-usage here in our factory, after getting their values into nodered, now i want to make their values available for third party software by opc-ua. I set up a OPC-UA serv…

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## [Reading Timer from PLC S7](https://discourse.nodered.org/t/reading-timer-from-plc-s7/64230)

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**Author:** [@WalaDM](https://discourse.nodered.org/u/WalaDM)\
**Replies:** 0\
**Last updated:** [22 June 2022 08:37 UTC](https://discourse.nodered.org/t/reading-timer-from-plc-s7/64230 "2022-06-22T08:37:37Z")

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Hello, I'm trying to retrieve a timer variable from PLC under the type of Word (DB608.DBW0). The timer value in the HMI should be 10s. The problem is that when I try to retrieve it in node red (DB608,WORD0) , I get a…

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## [OPC UA Client Automatic Tag Discovery](https://discourse.nodered.org/t/opc-ua-client-automatic-tag-discovery/63968)

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**Author:** [@mert](https://discourse.nodered.org/u/mert)\
**Replies:** 9\
**Last updated:** [21 June 2022 05:41 UTC](https://discourse.nodered.org/t/opc-ua-client-automatic-tag-discovery/63968 "2022-06-21T05:41:57Z")

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I have OPC Server on KepServerEX. I would like to creat OPC UA Client using opc.tcp://127.0.0.1:49320 to discover all defined tags. I just want to not define nodeid of each node. Because I have more than 5000 tags to rea…

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## [Problem connection between ode red and plc S7 1200](https://discourse.nodered.org/t/problem-connection-between-ode-red-and-plc-s7-1200/64015)

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**Author:** [@ayoub\_23](https://discourse.nodered.org/u/ayoub_23)\
**Replies:** 2\
**Last updated:** [16 June 2022 18:51 UTC](https://discourse.nodered.org/t/problem-connection-between-ode-red-and-plc-s7-1200/64015 "2022-06-16T18:51:23Z")

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hello , please i have this problem , someone can help me please?

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## [OMRON-PLC read and write](https://discourse.nodered.org/t/omron-plc-read-and-write/61763)

<div class="topic-metadata">

**Author:** [@maliheh.amirfakhry](https://discourse.nodered.org/u/maliheh.amirfakhry)\
**Replies:** 10\
**Last updated:** [5 June 2022 10:56 UTC](https://discourse.nodered.org/t/omron-plc-read-and-write/61763 "2022-06-05T10:56:01Z")

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Hi guys, I need to read and write data from an Omron-plc (CP1L) to a raspberry pi 4 with : 1- rs 232 to USB cable or 2- USB-b To USB or 3- rs232 to ethernet cable using node-red. Can you please help me?

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