Talk
| FORUM | LATEST POST | # TOPICS |
|---|---|---|
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Engineering 🇬🇧 Discussions about the CODESYS Development System, IEC programming, CODESYS Professional Developer Edition |
Editor FIND highlight color by oemcba 3 days ago |
5955 |
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Runtime 🇬🇧 Related questions to SoftPLCs e.g. Raspberry Pi, Beaglebone, IoT2000 and other platforms |
"Invalid Value" for Variables at Runtime by noah 5 hours ago |
2295 |
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Visualization 🇬🇧 Realizing operator screens with CODESYS HMI, Targetvisu, Webvisu |
Table element issues by ilya-vah 2026-02-16 |
1054 |
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Motion 🇬🇧 Realizing single or multi axis motion control, CAM, CNC and Robotic applications |
Absolute movement controlled by an external encoder. by gseidel 5 days ago |
563 |
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Codesys V2.3 🇬🇧 Forum about V2.3 |
AI + Programming by risele 2026-02-13 |
2242 |
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Deutsch 🇩🇪 German forum |
Beobachtungszeitpunkt by stefan-gimpl 5 days ago |
4577 |
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Automation Server 🇬🇧 The Industry 4.0 administration platform for users and operators of CODESYS compatible controllers |
Gateway in China - "Gateway not connected" by pernockham 2026-02-12 |
79 |
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Forge 🇬🇧 Discussions about CODESYS Forge projects and features of the CODESYS Forge website |
Seeking a Code-Based Solution for EtherCAT Slave Dropout or Master Error... by zeljko2212 2026-02-14 |
230 |
Recent Activities
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noah posted a comment on discussion Runtime 🇬🇧
Hello, I also have the problem that suddenly all variables in my project were invalid and shown as "???" during runtime. Could you manage to fix the problem in the last 4,5 years ;) ? Because I tried everythin to fix it but nothing worked. I feel like maybe this is a bug. Thank you.
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noah posted a comment on discussion Runtime 🇬🇧
Hello, I also have the problem that suddenly all variables in my project were invalid and shown as "???" during runtime. Could you manage to fix the problem in the last 4,5 years ;) ? Because I tried everythin to fix it but nothing worked. I feel like maybe this is a bug. Thank you.
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oemcba posted a comment on discussion Engineering 🇬🇧
Today is 2026, and we still have the same issue since 2017, anyone have the answer? i'm using V3.5 SP18 P4+ from festo, thanks in advance... @rudolsto @r.evbatyrov @cole @mahmutonx @root @codesys-com
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remlab modified a comment on discussion Engineering 🇬🇧
If I try http://192.168.0.250:50543/api/xdevices.json?key=XXX&SetC1=1 it write correctly Why can I write but I can't read the Json ?
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remlab posted a comment on discussion Engineering 🇬🇧
If I try http://192.168.0.250:50543/api/xdevices.json?key=XXX&SetC=1 it write correctly Why can I write but I can't read the Json ?
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remlab modified a comment on discussion Engineering 🇬🇧
Hello, I try to read into a IPX800v4 (this is a PLC for domotic application) with a WebClient fonction I use as url http://192.168.0.250:50543/api/xdevices.json?key=XXX&Get=C XXX is replace by the correct key for sure The status code is 200, it should works correctly But the result is '{' that's my problem When I try the same url with a web browser the result is correct like { "product": "IPX800_V4", "status": "Success", "C1": 16, "C2": 2, "C3": 0, "C4": 0, "C5": 0, "C6": 0, "C7": 0, "C8": 0, "C9":...
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remlab posted a comment on discussion Engineering 🇬🇧
Hello, I try to read into a IPX800v4 (this is a PLC for domotic application) with a WebClient fonction I use as url http://192.168.0.250:50543/api/xdevices.json?key=XXX&Get=C XXX is replace by the correct key for sure The status code is 200, it should works correctly But the result is '{' and this my problem When I try the same url with a web browser the result is correct like { "product": "IPX800_V4", "status": "Success", "C1": 16, "C2": 2, "C3": 0, "C4": 0, "C5": 0, "C6": 0, "C7": 0, "C8": 0, "C9":...
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gseidel posted a comment on discussion Motion 🇬🇧
Hi polyautomacao, basically, there are two ways to approach this. My first choice would be to check whether your servo drives supports an external encoder, connect the encoder to the servo and configure the servo accordingly. In this case, you would not need to change anything in the CODESYS application. If that is not an option, you could use SM_DrivePosControl, a drive that closes the position loop in the PLC, and feed it with the external encoder positions. See (0). You can switch your servo drive...
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alexgooi modified a comment on discussion Engineering 🇬🇧
Dear Forum, For anyone interested we have solved this problem. Before we were using a KNX TP/IP interface, now we are using a KNX TP/IP router, and it works like a charm now.