# CODESYS **URL:** https://www.wago.community/c/codesys/8.md?page=1 [Latest](https://www.wago.community/latest.md) · [Categories](https://www.wago.community/categories.md) · [Tags](https://www.wago.community/tags.md) **Page:** 2 --- ## [WagoAppSQL\_MySQL library version 1.7.1.1 errors](https://www.wago.community/t/wagoappsql-mysql-library-version-1-7-1-1-errors/2826)
**Author:** [@Justin](https://www.wago.community/u/Justin)\ **Replies:** 0\ **Last updated:** [July 26, 2026, 8:26pm UTC](https://www.wago.community/t/wagoappsql-mysql-library-version-1-7-1-1-errors/2826 "2026-07-26T20:26:04Z")
I am upgrading code, having shifted from a PFC200 750-8217 (32 bit) to the PFC300 750-8302 (64 bit). For the PFC200 we are using Firmware 04.07.03(29), CODESYS V3.5 SP21 Patch 1, and version 1.6.2.6 of the WagoAppSQL\_My… --- ## [Wago PFC300 (750-8302) and WagoAppSQL\_xxx libs](https://www.wago.community/t/wago-pfc300-750-8302-and-wagoappsql-xxx-libs/2601)
**Author:** [@FPawlak](https://www.wago.community/u/FPawlak)\ **Replies:** 1\ **Last updated:** [July 26, 2026, 8:17pm UTC](https://www.wago.community/t/wago-pfc300-750-8302-and-wagoappsql-xxx-libs/2601 "2026-07-26T20:17:31Z")
Hi everyone, I have a problem on new PLC PFC300 (750-8302) with WagoAppSQL\_MySQL lib. It looks like it is not compatible with 64bits PLCs. On older PLCs like 750-8212 and 750-8202 it works without problems. I am using … --- ## [Custom Login Dialog](https://www.wago.community/t/custom-login-dialog/2817)
**Author:** [@RodPer18](https://www.wago.community/u/RodPer18)\ **Replies:** 5\ **Last updated:** [July 21, 2026, 10:56am UTC](https://www.wago.community/t/custom-login-dialog/2817 "2026-07-21T10:56:38Z")
Hi there, is it possible to make my own custom login dialog instead of using the native ugly codesys one? If there is can you explain how? Thanks! --- ## [Need Target files (.trg) and .WDD file for WAGO 750-893 (CODESYS 2.3 & I/O-Check)](https://www.wago.community/t/need-target-files-trg-and-wdd-file-for-wago-750-893-codesys-2-3-i-o-check/2818)
**Author:** [@Paul1](https://www.wago.community/u/Paul1)\ **Replies:** 1\ **Last updated:** [July 20, 2026, 12:24pm UTC](https://www.wago.community/t/need-target-files-trg-and-wdd-file-for-wago-750-893-codesys-2-3-i-o-check/2818 "2026-07-20T12:24:15Z")
Hello everyone, I am setting up a new engineering laptop and I need to connect to a WAGO 750-893 controller using CODESYS V2.3 and WAGO I/O-Check 3. Unfortunately, I am unable to find the legacy target files on the WA… --- ## [Configuration 750-652 on PLC 750-8111](https://www.wago.community/t/configuration-750-652-on-plc-750-8111/2819)
**Author:** [@DBB26](https://www.wago.community/u/DBB26)\ **Replies:** 2\ **Last updated:** [July 20, 2026, 6:17am UTC](https://www.wago.community/t/configuration-750-652-on-plc-750-8111/2819 "2026-07-20T06:17:25Z")
Hi all, im new about wago word but not about PLC. Is my first time about programming a WAGO PLC and im founding some problem about the HW configuration. I have a PFC100 750-8111 PLC with 2 modules: 750-1405 and a 750-6… --- ## [WAGO PLC Firmware vs. CODESYS 3.5 & Device Description: Version Compatibility Guide](https://www.wago.community/t/wago-plc-firmware-vs-codesys-3-5-device-description-version-compatibility-guide/1567)
**Author:** [@Jacob](https://www.wago.community/u/Jacob)\ **Replies:** 6\ **Last updated:** [July 17, 2026, 9:06am UTC](https://www.wago.community/t/wago-plc-firmware-vs-codesys-3-5-device-description-version-compatibility-guide/1567 "2026-07-17T09:06:20Z")
To program and operate your WAGO PLC correctly, the PLC firmware, CODESYS 3.5 version, and WAGO Device Description must all be compatible. The firmware is the system software that enables the PLC to function, CODESYS is … --- ## [Error configuring IO terminal 750\_496\_16](https://www.wago.community/t/fehler-beim-konfigurieren-einer-io-klemme-750-496-16/2815)
**Author:** [@Hannah](https://www.wago.community/u/Hannah)\ **Replies:** 2\ **Last updated:** [July 14, 2026, 8:47am UTC](https://www.wago.community/t/fehler-beim-konfigurieren-einer-io-klemme-750-496-16/2815 "2026-07-14T08:47:51Z")
Hello everyone, I would like to configure my WAGO terminal (750\_496\_1) via Codesys. I am using the following function to configure my channels: aeChannel\_WagoModul\_750\_496\_SignalType\[1\] := 0; aeChannel\_WagoModu… --- ## [Pass Codesys recipes between two controllers that are not on the same network](https://www.wago.community/t/pass-codesys-recipes-between-two-controllers-that-are-not-on-the-same-network/2795)
**Author:** [@colsen](https://www.wago.community/u/colsen)\ **Replies:** 2\ **Last updated:** [July 13, 2026, 10:25pm UTC](https://www.wago.community/t/pass-codesys-recipes-between-two-controllers-that-are-not-on-the-same-network/2795 "2026-07-13T22:25:29Z")
Codesys 3.5.21.3 using WebVisu on a CC-100. I have a client that is hoping that he can download a recipe from my recipe manager in one PLC and upload it to another. The two PLCs are not on the same network. My research … --- ## [Missing files when opening a project in codesys](https://www.wago.community/t/missing-files-when-opening-a-project-in-codesys/2812)
**Author:** [@kaushikvishal6999](https://www.wago.community/u/kaushikvishal6999)\ **Replies:** 1\ **Last updated:** [July 13, 2026, 6:45am UTC](https://www.wago.community/t/missing-files-when-opening-a-project-in-codesys/2812 "2026-07-13T06:45:16Z")
i use Codesys version 3.5 SP19 patch 17. when i try to open a project applicaiton which was sent to me from a colleague, some files in projects are missing inside codesys. How to open a project application without losin… --- ## [CC100 Modbus RTU](https://www.wago.community/t/cc100-modbus-rtu/2796)
**Author:** [@MatthewKim](https://www.wago.community/u/MatthewKim)\ **Replies:** 1\ **Last updated:** [July 6, 2026, 8:12am UTC](https://www.wago.community/t/cc100-modbus-rtu/2796 "2026-07-06T08:12:52Z")
Hello. This is Matthew Kim from Korea. I would like to contact you because a situation I do not understand occurred while testing the CC100 X11 Modbus RTU. I connected the CC100 X11 via the PC’s USB 485 port. I would … --- ## [DNP3 Setup and Class](https://www.wago.community/t/dnp3-setup-and-class/2800)
**Author:** [@jgovek](https://www.wago.community/u/jgovek)\ **Replies:** 0\ **Last updated:** [July 2, 2026, 3:44pm UTC](https://www.wago.community/t/dnp3-setup-and-class/2800 "2026-07-02T15:44:56Z")
When setting up DNP3 in the Telecontrol Configurator, it is not obvious how to set the Class. See this video tutorial on how to set up a basic DNP3 slave: WAGO Telecontrol Application Controller - DNP3 Slave If you nee… --- ## [How to read Modbus RS485 on plc](https://www.wago.community/t/how-to-read-modbus-rs485-on-plc/2320)
**Author:** [@WagoUser44](https://www.wago.community/u/WagoUser44)\ **Replies:** 62\ **Last updated:** [July 2, 2026, 6:44am UTC](https://www.wago.community/t/how-to-read-modbus-rs485-on-plc/2320 "2026-07-02T06:44:51Z")
Hello, I have an electric meter connected with Modbus RS485 to the PFC300 and I want to read the values from codesys. How can I do that please ? --- ## [Modbus TCP and Modbus RTU](https://www.wago.community/t/modbus-tcp-and-modbus-rtu/2758)
**Author:** [@William](https://www.wago.community/u/William)\ **Replies:** 4\ **Last updated:** [July 1, 2026, 6:25pm UTC](https://www.wago.community/t/modbus-tcp-and-modbus-rtu/2758 "2026-07-01T18:25:00Z")
Hi, I have a network with 5 remote I/O modules Modbus TCP(750-362), all controlled by a single master (PFC200). In addition, I have 5 other devices that can only be accessed via Modbus RTU remotely, as well as some devic… --- ## [TSP 751-862 for codesys 2.3](https://www.wago.community/t/tsp-751-862-for-codesys-2-3/2797)
**Author:** [@Antonio](https://www.wago.community/u/Antonio)\ **Replies:** 1\ **Last updated:** [July 1, 2026, 4:40pm UTC](https://www.wago.community/t/tsp-751-862-for-codesys-2-3/2797 "2026-07-01T16:40:26Z")
Hello everyone, I am looking for target files for Codesys V2.3. Specifically for the 750-862 PLC reference. How can I obtain these files? Thank you for your help. --- ## [PFC 750-8112 Communication Issue with Weintek cMT2108X2 HMI](https://www.wago.community/t/pfc-750-8112-communication-issue-with-weintek-cmt2108x2-hmi/2763)
**Author:** [@Mehak\_Fatima](https://www.wago.community/u/Mehak_Fatima)\ **Replies:** 3\ **Last updated:** [June 30, 2026, 11:54am UTC](https://www.wago.community/t/pfc-750-8112-communication-issue-with-weintek-cmt2108x2-hmi/2763 "2026-06-30T11:54:20Z")
I’m experiencing a communication issue between a WAGO 750-8112 (Firmware 28) PLC and a Weintek cMT2108X2 HMI. Configuration Created and updated the latest Symbol Configuration in the PLC project. Downloaded the project… --- ## [\[OPC UA\] NodeID path changes on Client side (Data Sources Manager) — How to preserve Server-side hierarchy?](https://www.wago.community/t/opc-ua-nodeid-path-changes-on-client-side-data-sources-manager-how-to-preserve-server-side-hierarchy/2754)
**Author:** [@Pattanapong](https://www.wago.community/u/Pattanapong)\ **Replies:** 2\ **Last updated:** [June 30, 2026, 6:06am UTC](https://www.wago.community/t/opc-ua-nodeid-path-changes-on-client-side-data-sources-manager-how-to-preserve-server-side-hierarchy/2754 "2026-06-30T06:06:59Z")
Hi everyone, I’m working on a small-scale Smart Factory project using CODESYS-based PLCs (WAGO) and running into an OPC UA NodeID naming issue. Hope someone can point me in the right direction. Project Architecture: 5… --- ## [Wago 8112 communication with Weintek 2108x2 HMI](https://www.wago.community/t/wago-8112-communication-with-weintek-2108x2-hmi/2762)
**Author:** [@varenalen](https://www.wago.community/u/varenalen)\ **Replies:** 1\ **Last updated:** [June 29, 2026, 4:03pm UTC](https://www.wago.community/t/wago-8112-communication-with-weintek-2108x2-hmi/2762 "2026-06-29T16:03:01Z")
Hi everyone, I am trying to establish communication between a WAGO 750-8112 PLC and a Weintek cMT2108X2 HMI, but I am unable to get stable communication working. PLC Details: WAGO 750-8112 Firmware Version: 28 … --- ## [Bus Mapping Data Types INT or WORD?](https://www.wago.community/t/bus-mapping-data-types-int-or-word/2791)
**Author:** [@MootBoot](https://www.wago.community/u/MootBoot)\ **Replies:** 2\ **Last updated:** [June 29, 2026, 3:57pm UTC](https://www.wago.community/t/bus-mapping-data-types-int-or-word/2791 "2026-06-29T15:57:55Z")
Hello, I am looking for insight on why analog input module data type changes between INT and WORD for different use cases. I understand underlying data is consistent but I would like to structure code to use explicit co… --- ## [Tech Note : CODESYS Persistent Variables](https://www.wago.community/t/tech-note-codesys-persistent-variables/1845)
**Author:** [@MikePsaltis](https://www.wago.community/u/MikePsaltis)\ **Replies:** 7\ **Last updated:** [June 29, 2026, 3:53pm UTC](https://www.wago.community/t/tech-note-codesys-persistent-variables/1845 "2026-06-29T15:53:34Z")
This is short note for new users to CODESYS on how to use local, retain, and persistent retain variables. Local or Global Vars - Values that will be re-initialized when the PLC is rebooted or turned on and off. An examp… --- ## [Retain/persistant variables and flash wear](https://www.wago.community/t/retain-persistant-variables-and-flash-wear/2714)
**Author:** [@sommerz](https://www.wago.community/u/sommerz)\ **Replies:** 2\ **Last updated:** [June 29, 2026, 2:42pm UTC](https://www.wago.community/t/retain-persistant-variables-and-flash-wear/2714 "2026-06-29T14:42:22Z")
When using retain and persistent variables, are there any limits related to write cycles or memory wear? It looks like retained variables might be stored in the Linux file system, so I’d expect wear leveling to be handl… --- ## [Is WAGO CC100 ready for Codesys V3.5 SP22 (Service Pack 22)?](https://www.wago.community/t/is-wago-cc100-ready-for-codesys-v3-5-sp22-service-pack-22/2777)
**Author:** [@HANIBAL](https://www.wago.community/u/HANIBAL)\ **Replies:** 1\ **Last updated:** [June 23, 2026, 12:42pm UTC](https://www.wago.community/t/is-wago-cc100-ready-for-codesys-v3-5-sp22-service-pack-22/2777 "2026-06-23T12:42:55Z")
Hi, I am still using Codesys V3.5 SP21 5. Has somebory already deplied Codesys latest version on WAGO CC100? --- ## [WebVisu is not working](https://www.wago.community/t/webvisu-lauft-nicht/2782)
**Author:** [@Hannah](https://www.wago.community/u/Hannah)\ **Replies:** 2\ **Last updated:** [June 23, 2026, 6:58am UTC](https://www.wago.community/t/webvisu-lauft-nicht/2782 "2026-06-23T06:58:35Z")
Hi everyone, I'm currently creating a web visualization for my PFC300 controller. However, I am unable to access it via my browser. The visualization is already running in CODESYS. ... --- ## [OPC UA server crash pfc200](https://www.wago.community/t/opc-ua-server-crash-pfc200/2638)
**Author:** [@\_sbohata](https://www.wago.community/u/_sbohata)\ **Replies:** 13\ **Last updated:** [June 23, 2026, 4:42am UTC](https://www.wago.community/t/opc-ua-server-crash-pfc200/2638 "2026-06-23T04:42:04Z")
Hello everyone! I’m having an issue where an unhandled exception in the OPC UA server causes the PLC to crash up to several times a day. The appearance of this exception is very inconsistent but from what I can tell it … --- ## [Unstable DMX values (Slave) on WAGO PFC200 (750-8212) with terminal 753-652](https://www.wago.community/t/instabile-dmx-werte-slave-an-wago-pfc200-750-8212-mit-klemme-753-652/2752)
**Author:** [@LucdeKo](https://www.wago.community/u/LucdeKo)\ **Replies:** 2\ **Last updated:** [June 21, 2026, 9:05pm UTC](https://www.wago.community/t/instabile-dmx-werte-slave-an-wago-pfc200-750-8212-mit-klemme-753-652/2752 "2026-06-21T21:05:58Z")
Hello everyone, for the stage technology in our theater, we have set up a central control system. We are using the following WAGO hardware, which is controlled from the lighting console: Controller: PFC200 (750-8212) … --- ## [Codesys FSoE on Wago controllers](https://www.wago.community/t/codesys-fsoe-on-wago-controllers/2766)
**Author:** [@VegardS](https://www.wago.community/u/VegardS)\ **Replies:** 1\ **Last updated:** [June 18, 2026, 7:29am UTC](https://www.wago.community/t/codesys-fsoe-on-wago-controllers/2766 "2026-06-18T07:29:26Z")
Does anyone have experience using FSoE on WAGO controllers, for example with a Beckhoff TwinSAFE EL6910 safety logic terminal and EL1904/EL2904 safety I/O terminals? More specifically, can the CODESYS Safety for EtherCA… --- ## [Auto failover issue](https://www.wago.community/t/auto-failover-issue/2768)
**Author:** [@chaos1028](https://www.wago.community/u/chaos1028)\ **Replies:** 0\ **Last updated:** [June 18, 2026, 12:28am UTC](https://www.wago.community/t/auto-failover-issue/2768 "2026-06-18T00:28:40Z")
Hello All, I’m testing Redundancy function via PFC-300 but there is an issue. After a certain period of time, the redundancy configuration breaks down, accompanied by an attached message. Do you have any idea why this… --- ## [Display one webvisu inside another webvisu?](https://www.wago.community/t/display-one-webvisu-inside-another-webvisu/125)
**Author:** [@wagojesse](https://www.wago.community/u/wagojesse)\ **Replies:** 4\ **Last updated:** [June 17, 2026, 5:04pm UTC](https://www.wago.community/t/display-one-webvisu-inside-another-webvisu/125 "2026-06-17T17:04:15Z")
Is it possible to embed one controller’s webvisu into the webvisu or target visualization of another controller? I would like to pool visualizations in some sort of tile configuration. --- ## [Web browser to display PDF or HTML file](https://www.wago.community/t/web-browser-to-display-pdf-or-html-file/2578)
**Author:** [@tn7231](https://www.wago.community/u/tn7231)\ **Replies:** 3\ **Last updated:** [June 17, 2026, 11:39am UTC](https://www.wago.community/t/web-browser-to-display-pdf-or-html-file/2578 "2026-06-17T11:39:01Z")
Hi All, I have a HTML help file that I created and would like to make it possible to open this in one of my webvisu screens on a web panel running the main visualization. I was trying to use the web browser element on a… --- ## [Using IO-Link Terminal 750-1657 with PFC200](https://www.wago.community/t/io-link-klemme-750-1657-am-pfc200-nutzen/2602)
**Author:** [@bwurst](https://www.wago.community/u/bwurst)\ **Replies:** 5\ **Last updated:** [June 17, 2026, 9:58am UTC](https://www.wago.community/t/io-link-klemme-750-1657-am-pfc200-nutzen/2602 "2026-06-17T09:58:16Z")
Hello. I am programming a 750-8212 with several classic I/O terminals using CODESYS 3.5, and so far this works. Now I wanted to connect a flow meter via IO-Link to read the totalizer... --- ## [750-890 programming software](https://www.wago.community/t/750-890-programming-software/2764)
**Author:** [@Abdallah](https://www.wago.community/u/Abdallah)\ **Replies:** 1\ **Last updated:** [June 15, 2026, 1:10pm UTC](https://www.wago.community/t/750-890-programming-software/2764 "2026-06-15T13:10:26Z")
I need to know the programming software for 750-890 I have been searching for 3 days now [Previous page](https://www.wago.community/c/codesys/8.md) [Next page](https://www.wago.community/c/codesys/8.md?page=2)