LM 2025.08 release candidate 1 firmware is ready for testing.
Changes from 2025.07 beta:
- Fixed KNX connection settings not working
- Updated Visu and LM cloud apps
New Visu features:
- Trend log widget
- Camera snapshot widget with local image proxy
Most notable changes from 2024.04:
- Old visualization is disabled for new installations (does not apply if upgrading from an older version or restoring a backup)
- New Visu beta app added
- Added support for new Visu cloud version
- Mosaic app removed
Old visualization and Mosaic can still be used with this firmware. No new features will be added to old visualization and Mosaic. Only critical bug fixes will be provided.
You can find your hardware model in the "Upgrade firmware" window:
13.08.2025, 14:22 (This post was last modified: 13.08.2025, 14:26 by Gabriel88.)
Hello everyone. I have just updated my LM5 with the new firmware (LM5 Lite (i.MX6)-20250813). When trying to program the KNX system with ETS5, it detects the Logic Machine interface, lets me select it, but it doesn't communicate with the system. When I try to download or read any KNX device, it fails — there's no communication. I hope I haven’t done anything wrong, but apart from setting the communication mode to "TP-UART" on the LM5, assigning a physical address, and selecting the interface in ETS5, I don't think there's anything else to do... Thanks in advance, everyone.
Tested on the same ETS 5 version as well as on ETS6 and both works fine. Don't use Zerotier multicast if you don't actually use it. Did you press this RED button on top right corner?
(13.08.2025, 14:45)Daniel Wrote: Tested on the same ETS 5 version as well as on ETS6 and both works fine. Don't use Zerotier multicast if you don't actually use it. Did you press this RED button on top right corner?
Yes, I saved the changes. At this point, I must be doing something wrong, but I can't figure out what. If it has already been tested and it works, then I need to understand what my problem is...
(13.08.2025, 15:13)Daniel Wrote: Maybe some firewall, is this corporate network with managed switch?
Did you test it just before the upgrade?
No, it's a private residence. Unfortunately, I didn’t test it before the update. I only just noticed that there’s an error; what does this KNX/TP error refer to? I was so focused that I didn’t notice until now. What does it mean? In the end, the whole KNX system is working correctly
13.08.2025, 16:03 (This post was last modified: 13.08.2025, 16:15 by Gabriel88.)
(13.08.2025, 15:51)Daniel Wrote: Can you provide remote access? If yes send me PM.
Double check the cable next to LM.
Did you check the voltage on LM side of TP connector?
Of course I can, but wait a second. I think I found the problem. It seems that the KNX connector is damaged and is not making contact with the LM5 terminal.
I’m looking for another terminal block in the van and will do some tests.
(13.08.2025, 16:03)Gabriel88 Wrote:
(13.08.2025, 15:51)Daniel Wrote: Can you provide remote access? If yes send me PM.
Double check the cable next to LM.
Did you check the voltage on LM side of TP connector?
Of course I can, but wait a second. I think I found the problem. It seems that the KNX connector is damaged and is not making contact with the LM5 terminal.
I’m looking for another terminal block in the van and will do some tests.
Update: it really seems that the KNX terminal block on the LM5 was faulty. After replacing it, everything appears to be working, and I can also use the LM5 as an interface for ETS. Conclusion: machine update is all good, the problem was on my side due to the faulty terminal block. I don’t know how to thank you enough for your advice and patience... Drinks are on me!
(13.08.2025, 15:51)Daniel Wrote: Can you provide remote access? If yes send me PM.
Double check the cable next to LM.
Did you check the voltage on LM side of TP connector?
I have this problem as well! I JUST updated my firmware to the newest, and while testing multicast via ZeroTier, the "ERROR" occured.
When setting KNX Connection: Multicast back to LOCAL, the KNX/TP is OK.
I really wanna test this multicast via ZeroTier. Do you know about this problem and maybe a solution?
The issue above was related to faulty KNX connector. Multicast over Zerotier may not be very reliable as multicast is sent blindly with hope that it was delivered. Much better and robust solution is MQTT, this app makes it super easy. https://forum.logicmachine.net/showthread.php?tid=5878
14 minutes ago(This post was last modified: 11 minutes ago by PolymorphedCust.)
I will have a look at this way of communicating between our LMs... It doesn't quite fix the ERROR problem though....
I can FORCE the ERROR, simply by setting multicast to ZT.
Then I can make it alright again by switching it back to Multicast: LOCAL.
The KNX is FUNCTIONAL while LM says it has an ERROR... That said; my LM scripts works aswell...