08.04.2026, 07:55
Hello,
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?
