<![CDATA[LogicMachine Forum - Gateway]]> https://forum.logicmachine.net/ Wed, 20 May 2026 16:35:07 +0000 MyBB <![CDATA[Multi IP Tunneling]]> https://forum.logicmachine.net/showthread.php?tid=6432 Tue, 19 May 2026 15:00:44 +0000 Domoticatorino]]> https://forum.logicmachine.net/showthread.php?tid=6432 I have a LM that must communicate with no.19 KNX/IP Tunneling devices.

Is it possible set a proper communication with those different IP addresses? How can I set it?

Thanks.

BR]]> I have a LM that must communicate with no.19 KNX/IP Tunneling devices.

Is it possible set a proper communication with those different IP addresses? How can I set it?

Thanks.

BR]]> <![CDATA[Email routing to SIM]]> https://forum.logicmachine.net/showthread.php?tid=6427 Fri, 15 May 2026 12:32:32 +0000 Frank68]]> https://forum.logicmachine.net/showthread.php?tid=6427
I have reactors in which I installed the SIM. The reactor doesn't have direct access to the internet because it's on a segregated network, which guarantees me protected and controlled access from the customer's company PC. I use the SIM to send SMS messages. Is there a way to force the reactor to send emails using the SIM?

Thank you very much.]]>
I have reactors in which I installed the SIM. The reactor doesn't have direct access to the internet because it's on a segregated network, which guarantees me protected and controlled access from the customer's company PC. I use the SIM to send SMS messages. Is there a way to force the reactor to send emails using the SIM?

Thank you very much.]]> <![CDATA[block addresses within the logic machine itself]]> https://forum.logicmachine.net/showthread.php?tid=6425 Thu, 14 May 2026 14:42:14 +0000 ALEJANDRO]]> https://forum.logicmachine.net/showthread.php?tid=6425 <![CDATA[SCADA connection to KNX bus using LM5 and VPN]]> https://forum.logicmachine.net/showthread.php?tid=6423 Wed, 13 May 2026 10:04:58 +0000 Higgel]]> https://forum.logicmachine.net/showthread.php?tid=6423
We have a sentral SCADA system running on Niagara, thats connected to many buildings and in one of them we want to connect to it to the KNX bus.
The SCADA system is connected to the buildings using IXON VPN routers. 
We've tried to connect the SCADA system to both KNX-IP routers and a LM5 to get access to the KNX bus but without any success.
We where able to connect to the IP-routers and LM5 using ETS with NAT enabled, it didn't work without NAT.
I was wondering if its possible to connect the SCADA system to the knx bus like I've described?

This is how the topology should look like:
.png   Scada to KNX.png (Size: 24.42 KB / Downloads: 39)
]]>
We have a sentral SCADA system running on Niagara, thats connected to many buildings and in one of them we want to connect to it to the KNX bus.
The SCADA system is connected to the buildings using IXON VPN routers. 
We've tried to connect the SCADA system to both KNX-IP routers and a LM5 to get access to the KNX bus but without any success.
We where able to connect to the IP-routers and LM5 using ETS with NAT enabled, it didn't work without NAT.
I was wondering if its possible to connect the SCADA system to the knx bus like I've described?

This is how the topology should look like:
.png   Scada to KNX.png (Size: 24.42 KB / Downloads: 39)
]]> <![CDATA[KNX bus and repeats.]]> https://forum.logicmachine.net/showthread.php?tid=6417 Fri, 08 May 2026 06:49:08 +0000 ALEJANDRO]]> https://forum.logicmachine.net/showthread.php?tid=6417
As I've mentioned several times, I have a building with four logic machines (LMs) located in entrances 1, 2, and 3, as well as the garage. I'm attaching diagrams of the main control panels where the logic machines are located to clarify my question.

As I've mentioned before, I'm also including photos of the KNX installation that controls each LM. As I've also mentioned, LM_P1, P2, and P3 each receive data from 27 sensors and 27 displays, meaning 81 sensors and 81 displays in the entire building.

The issue is that we're having a problem with communication on the KNX bus. Yesterday, we found that the LMs were showing a very high bus load and the number of repeated telegrams was only partially under control.

We made several changes. First, we noticed that the line coupler configuration between the two KNX lines connected to each Logic Machine was set to repeater mode, not line coupler mode. This caused values like the temperature of a floor to repeat up to 13 times. Changing and reprogramming this in ETS6 corrected the issue and reduced the bus load. After that, we found that the bus spikes were caused by the grp.write function, and, following your advice, we replaced it with checkwrite.

Again, the bus load has dropped to an acceptable level between 0 and 20%. The problem is that while the bus load is very stable, the TP repetitions have increased, reaching a peak of 70%. I'll send before and after photos, as well as the configurations in ETS6. The house sensors are from MDT, the touchscreens are from a local company called Zennio and don't seem to be the cause of anything, and the line coupler is from ABB. We'll send everything so our question is explained as clearly as possible. Thank you very much.


The elements of each portal have physical addresses: 1. Portal number.
.png   LM_P1_EXAMPLE_1.png (Size: 139.15 KB / Downloads: 52)

.png   ETS6_FILE.png (Size: 308.98 KB / Downloads: 51)

.png   COUPLER.png (Size: 60.58 KB / Downloads: 51)

.png   COUPLER_1.png (Size: 168.25 KB / Downloads: 51)

.png   COUPLER_2.png (Size: 146.35 KB / Downloads: 51)

.png   KNX DETECTORS_MDT.png (Size: 192.05 KB / Downloads: 51)

.png   KNX DETECTORS_MDT_1.png (Size: 143.25 KB / Downloads: 51)

.png   KNX DETECTORS_MDT_2.png (Size: 165.37 KB / Downloads: 51)

.png   DISPLAYS.png (Size: 187.08 KB / Downloads: 51)

.png   KNX POWER SUPPLIES.png (Size: 122.79 KB / Downloads: 51)

.jpeg   LM_P1 YESTERDAY.jpeg (Size: 62.27 KB / Downloads: 51)

.png   LM_P1 TODAY.jpeg.png (Size: 70.3 KB / Downloads: 51)

.png   LM_P1_EXAMPLE.png (Size: 130.71 KB / Downloads: 51)

.png   LM_P3_EXAMPLE.png (Size: 193.84 KB / Downloads: 48)
]]>
As I've mentioned several times, I have a building with four logic machines (LMs) located in entrances 1, 2, and 3, as well as the garage. I'm attaching diagrams of the main control panels where the logic machines are located to clarify my question.

As I've mentioned before, I'm also including photos of the KNX installation that controls each LM. As I've also mentioned, LM_P1, P2, and P3 each receive data from 27 sensors and 27 displays, meaning 81 sensors and 81 displays in the entire building.

The issue is that we're having a problem with communication on the KNX bus. Yesterday, we found that the LMs were showing a very high bus load and the number of repeated telegrams was only partially under control.

We made several changes. First, we noticed that the line coupler configuration between the two KNX lines connected to each Logic Machine was set to repeater mode, not line coupler mode. This caused values like the temperature of a floor to repeat up to 13 times. Changing and reprogramming this in ETS6 corrected the issue and reduced the bus load. After that, we found that the bus spikes were caused by the grp.write function, and, following your advice, we replaced it with checkwrite.

Again, the bus load has dropped to an acceptable level between 0 and 20%. The problem is that while the bus load is very stable, the TP repetitions have increased, reaching a peak of 70%. I'll send before and after photos, as well as the configurations in ETS6. The house sensors are from MDT, the touchscreens are from a local company called Zennio and don't seem to be the cause of anything, and the line coupler is from ABB. We'll send everything so our question is explained as clearly as possible. Thank you very much.


The elements of each portal have physical addresses: 1. Portal number.
.png   LM_P1_EXAMPLE_1.png (Size: 139.15 KB / Downloads: 52)

.png   ETS6_FILE.png (Size: 308.98 KB / Downloads: 51)

.png   COUPLER.png (Size: 60.58 KB / Downloads: 51)

.png   COUPLER_1.png (Size: 168.25 KB / Downloads: 51)

.png   COUPLER_2.png (Size: 146.35 KB / Downloads: 51)

.png   KNX DETECTORS_MDT.png (Size: 192.05 KB / Downloads: 51)

.png   KNX DETECTORS_MDT_1.png (Size: 143.25 KB / Downloads: 51)

.png   KNX DETECTORS_MDT_2.png (Size: 165.37 KB / Downloads: 51)

.png   DISPLAYS.png (Size: 187.08 KB / Downloads: 51)

.png   KNX POWER SUPPLIES.png (Size: 122.79 KB / Downloads: 51)

.jpeg   LM_P1 YESTERDAY.jpeg (Size: 62.27 KB / Downloads: 51)

.png   LM_P1 TODAY.jpeg.png (Size: 70.3 KB / Downloads: 51)

.png   LM_P1_EXAMPLE.png (Size: 130.71 KB / Downloads: 51)

.png   LM_P3_EXAMPLE.png (Size: 193.84 KB / Downloads: 48)
]]> <![CDATA[require "BACKNET" problem]]> https://forum.logicmachine.net/showthread.php?tid=6415 Mon, 04 May 2026 15:10:23 +0000 gkentsis]]> https://forum.logicmachine.net/showthread.php?tid=6415
After upgrade to version 20251204

require 'backnet' doesnt work

the follow error log returns:

User script:1: module 'bacnet' not found: no field package.preload['bacnet'] no file './bacnet' no file 'Library bacnet' no file 'Library bacnet' no file 'Library bacnet.so' stack traceback: [C]: in function 'require'

the backnet package became  bacnet-r22
avahi-browse 0.8-9
avahi-compat-libdns_sd 0.8-9
avahi-dbus-daemon 0.8-9
bacnet-r22 20250707
base-files 20240924
busybox 1.36.1-3
dbus 1.15.8-1

please help because i have problem with the backnet gateway of aircondition

ty]]>
After upgrade to version 20251204

require 'backnet' doesnt work

the follow error log returns:

User script:1: module 'bacnet' not found: no field package.preload['bacnet'] no file './bacnet' no file 'Library bacnet' no file 'Library bacnet' no file 'Library bacnet.so' stack traceback: [C]: in function 'require'

the backnet package became  bacnet-r22
avahi-browse 0.8-9
avahi-compat-libdns_sd 0.8-9
avahi-dbus-daemon 0.8-9
bacnet-r22 20250707
base-files 20240924
busybox 1.36.1-3
dbus 1.15.8-1

please help because i have problem with the backnet gateway of aircondition

ty]]> <![CDATA[YABE]]> https://forum.logicmachine.net/showthread.php?tid=6407 Tue, 28 Apr 2026 14:59:58 +0000 ALEJANDRO]]> https://forum.logicmachine.net/showthread.php?tid=6407
I have created a VPN through which I access four logic machines:
-192.168.0.11
-192.168.0.12
-192.168.0.13
-192.168.0.14

The VPN IP address on my computer is 10.8.0.3. The four logic machines are configured to deliver data via BACnet IP address, each separately.

I need to connect remotely to the logic machines through the VPN using Yabe to verify that the BACnet connection is working correctly and is of good quality. However, I am unable to access the IP addresses of the logic machines or the objects that each logic machine exports via BACnet IP address.]]>
I have created a VPN through which I access four logic machines:
-192.168.0.11
-192.168.0.12
-192.168.0.13
-192.168.0.14

The VPN IP address on my computer is 10.8.0.3. The four logic machines are configured to deliver data via BACnet IP address, each separately.

I need to connect remotely to the logic machines through the VPN using Yabe to verify that the BACnet connection is working correctly and is of good quality. However, I am unable to access the IP addresses of the logic machines or the objects that each logic machine exports via BACnet IP address.]]> <![CDATA[Protocol OCPP]]> https://forum.logicmachine.net/showthread.php?tid=6401 Tue, 21 Apr 2026 15:39:10 +0000 dezza@sdme.it]]> https://forum.logicmachine.net/showthread.php?tid=6401 Thank you very much.]]> Thank you very much.]]> <![CDATA[ping on VLAN and outside]]> https://forum.logicmachine.net/showthread.php?tid=6400 Tue, 21 Apr 2026 09:44:56 +0000 Frank68]]> https://forum.logicmachine.net/showthread.php?tid=6400
I'm having a problem with an LTE reactor on which I've enabled ZeroTier. The device only responds to pings within its own VLAN. It doesn't respond from outside with the appropriate rules, and it's unreachable. Meanwhile, two Android panels with web browsers respond to pings from both inside and outside. What could it be? The network staff has already checked everything, and everything appears to be configured correctly.

As always, thanks for the information.]]>
I'm having a problem with an LTE reactor on which I've enabled ZeroTier. The device only responds to pings within its own VLAN. It doesn't respond from outside with the appropriate rules, and it's unreachable. Meanwhile, two Android panels with web browsers respond to pings from both inside and outside. What could it be? The network staff has already checked everything, and everything appears to be configured correctly.

As always, thanks for the information.]]> <![CDATA[w4k fails reading modbus rtu float32]]> https://forum.logicmachine.net/showthread.php?tid=6390 Wed, 15 Apr 2026 12:20:22 +0000 cgn]]> https://forum.logicmachine.net/showthread.php?tid=6390
Code:
require('luamodbus')
mb = luamodbus.rtu()

mb:open('/dev/RS485', 9600, 'N', 8, 1, 'H')   -- SDM72 nutzt 8N1
mb:setslave(20)
mb:connect()


local r1, r2 = mb:readinputregisters(70, 2)
local value = mb:readregistervalue(70, "float32")
log(r1, r2, value)


mb:close()

I get the following result:
Code:
* arg: 1
  * number: 16967
* arg: 2
  * number: 57672
* arg: 3
  * number: 0

So in general the code seems to work. Why do I get a 0 for value? 
The modbus register can be found here: https://data.xn--stromzhler-v5a.eu/manua...72dmv2.pdf]]>
Code:
require('luamodbus')
mb = luamodbus.rtu()

mb:open('/dev/RS485', 9600, 'N', 8, 1, 'H')   -- SDM72 nutzt 8N1
mb:setslave(20)
mb:connect()


local r1, r2 = mb:readinputregisters(70, 2)
local value = mb:readregistervalue(70, "float32")
log(r1, r2, value)


mb:close()

I get the following result:
Code:
* arg: 1
  * number: 16967
* arg: 2
  * number: 57672
* arg: 3
  * number: 0

So in general the code seems to work. Why do I get a 0 for value? 
The modbus register can be found here: https://data.xn--stromzhler-v5a.eu/manua...72dmv2.pdf]]> <![CDATA[1-Wire issue]]> https://forum.logicmachine.net/showthread.php?tid=6388 Wed, 15 Apr 2026 07:13:26 +0000 Jarno]]> https://forum.logicmachine.net/showthread.php?tid=6388
I suspect that the 1-Wire service on my Logicmachine stops working, which causes the system to no longer detect any devices on the bus.
I have also looked into creating a script to restart the service every two hours, but I have not been able to get that working properly yet.

The USB interface is: DS9490R

Does anyone have any idea what could be causing this issue?
.png   1-Wire issue.png (Size: 50.56 KB / Downloads: 87)
]]>
I suspect that the 1-Wire service on my Logicmachine stops working, which causes the system to no longer detect any devices on the bus.
I have also looked into creating a script to restart the service every two hours, but I have not been able to get that working properly yet.

The USB interface is: DS9490R

Does anyone have any idea what could be causing this issue?
.png   1-Wire issue.png (Size: 50.56 KB / Downloads: 87)
]]> <![CDATA[knx ip interface problems]]> https://forum.logicmachine.net/showthread.php?tid=6387 Mon, 13 Apr 2026 11:38:46 +0000 Andrea Becagli]]> https://forum.logicmachine.net/showthread.php?tid=6387 I have been trying to download a few KNX devices using a LogicMachine (LM) as an IP interface, but it fails every time. The weird thing is that when I replaced the LM with an Apricum IP Interface, I had absolutely no problems downloading.
Here is what I have tried so far to troubleshoot:
  • Firmware rollback: I thought it could be an issue with the new firmware (20251204), so I tried reflashing the LM with an older firmware version (20211215), but the problem persists.
  • Network change: I tried using a completely different network setup, but nothing changed.
I have used LMs as IP interfaces in hundreds of installations without any issues, so this behavior is very unusual.
For further context, I am using ETS 6.4.1. I have attached the downloading telegrams as an export from ETS Diagnostics to this post to help with troubleshooting, some telegrams are flagged with error but I do not know why
Could this be a hardware issue with this specific unit? Has anyone experienced something similar or has any suggestions?
.pdf   DOWNLOADING TELEGRAMS.pdf (Size: 88.46 KB / Downloads: 9)
]]> I have been trying to download a few KNX devices using a LogicMachine (LM) as an IP interface, but it fails every time. The weird thing is that when I replaced the LM with an Apricum IP Interface, I had absolutely no problems downloading.
Here is what I have tried so far to troubleshoot:
  • Firmware rollback: I thought it could be an issue with the new firmware (20251204), so I tried reflashing the LM with an older firmware version (20211215), but the problem persists.
  • Network change: I tried using a completely different network setup, but nothing changed.
I have used LMs as IP interfaces in hundreds of installations without any issues, so this behavior is very unusual.
For further context, I am using ETS 6.4.1. I have attached the downloading telegrams as an export from ETS Diagnostics to this post to help with troubleshooting, some telegrams are flagged with error but I do not know why
Could this be a hardware issue with this specific unit? Has anyone experienced something similar or has any suggestions?
.pdf   DOWNLOADING TELEGRAMS.pdf (Size: 88.46 KB / Downloads: 9)
]]> <![CDATA[Keys with Mixed Security]]> https://forum.logicmachine.net/showthread.php?tid=6382 Wed, 08 Apr 2026 07:55:39 +0000 skibbi]]> https://forum.logicmachine.net/showthread.php?tid=6382
Just as a note upfront: I am writing this as a Wiser for KNX user, but I think this topic is best placed here.

I think the way Data Secure keys are imported in LogicMachine/Wiser for KNX is somewhat suboptimal for projects with mixed security. Suppose you have group address 0/0/1 on TP line 1.1, where it is connected to non-secure devices. Additionally, you have LogicMachine/Wiser on TP line 1.0 with a secure dummy. If the line coupler has a Security Proxy, ETS will set up the group address 0/0/1 with mixed security: unencrypted on 1.1, but encrypted on 1.0.

When you import the project into LogicMachine/Wiser, the object is created without a Data Secure key. I suspect it isn't easily deducible from the project export whether the group address is encrypted for LogicMachine/Wiser. Unfortunately, you consequently have to enter the keys manually for all mixed security group addresses, which is a rather cumbersome process. However, ETS offers a better way to handle this, which is incidentally also used by Home Assistant: you can run a key export on the group address associations of a dummy, which will then contain the exact keys that are securely linked to that dummy.

Is this issue already known, and is a solution being worked on?]]>
Just as a note upfront: I am writing this as a Wiser for KNX user, but I think this topic is best placed here.

I think the way Data Secure keys are imported in LogicMachine/Wiser for KNX is somewhat suboptimal for projects with mixed security. Suppose you have group address 0/0/1 on TP line 1.1, where it is connected to non-secure devices. Additionally, you have LogicMachine/Wiser on TP line 1.0 with a secure dummy. If the line coupler has a Security Proxy, ETS will set up the group address 0/0/1 with mixed security: unencrypted on 1.1, but encrypted on 1.0.

When you import the project into LogicMachine/Wiser, the object is created without a Data Secure key. I suspect it isn't easily deducible from the project export whether the group address is encrypted for LogicMachine/Wiser. Unfortunately, you consequently have to enter the keys manually for all mixed security group addresses, which is a rather cumbersome process. However, ETS offers a better way to handle this, which is incidentally also used by Home Assistant: you can run a key export on the group address associations of a dummy, which will then contain the exact keys that are securely linked to that dummy.

Is this issue already known, and is a solution being worked on?]]> <![CDATA[modbus comm problems]]> https://forum.logicmachine.net/showthread.php?tid=6380 Tue, 07 Apr 2026 06:37:35 +0000 ALEJANDRO]]> https://forum.logicmachine.net/showthread.php?tid=6380
I need some help. I have three different logic machines, each connected to a gateway that connects to a Circutor three-phase energy meter.

I created a profile for this three-phase energy meter and loaded it onto all three logic machines. I also created links to the group addresses of the devices generated from this profile for each three-phase meter.

Finally, I enabled the local > IP filters on portals 2 and 3 so that all the meter data from the logic machine in portal 1 is received in portal 1. However, it's not working with portal 2; it's sending very strange values. I'm not sure if I'm doing it correctly to obtain the Modbus data in a single logic machine.]]>
I need some help. I have three different logic machines, each connected to a gateway that connects to a Circutor three-phase energy meter.

I created a profile for this three-phase energy meter and loaded it onto all three logic machines. I also created links to the group addresses of the devices generated from this profile for each three-phase meter.

Finally, I enabled the local > IP filters on portals 2 and 3 so that all the meter data from the logic machine in portal 1 is received in portal 1. However, it's not working with portal 2; it's sending very strange values. I'm not sure if I'm doing it correctly to obtain the Modbus data in a single logic machine.]]> <![CDATA[Modbus TCP problem]]> https://forum.logicmachine.net/showthread.php?tid=6377 Wed, 01 Apr 2026 20:14:53 +0000 judgment]]> https://forum.logicmachine.net/showthread.php?tid=6377 Tried firmware upgrade - same issue. 
any ideas?Smile

.jpg   modbus 1.jpg (Size: 28.2 KB / Downloads: 98)

.jpg   modbus2.jpg (Size: 79.97 KB / Downloads: 98)
]]> Tried firmware upgrade - same issue. 
any ideas?Smile

.jpg   modbus 1.jpg (Size: 28.2 KB / Downloads: 98)

.jpg   modbus2.jpg (Size: 79.97 KB / Downloads: 98)
]]>