The Windows Firewall has blocked features of this program.
Symptoms:
-
When starting Neuron Power Engineer, Windows security alerts
The Windows Firewall has blocked some features of this program
appear.
or
-
Error messages are displayed when loading the application, such as
Timeout during execution of a target command
.
Causes:
-
The Windows firewall is enabled.
-
All connections are blocked or there are no rules that allow the connection of Neuron Power Engineer to the built-in PLC or a remote →PLC (= remote target system).
-
You are using MQTT functions within the application.
Solutions: Define the following rules for the Windows firewall (or ask your administrator to do so):
Rule type |
Definitions |
Action |
---|---|---|
Port – rule controlling the connection for a TCP or UDP port |
|
Allow the connection |
Port – rule controlling the connection for a TCP or UDP port |
|
Allow the connection |
Port – rule controlling the connection for a TCP or UDP port |
|
Allow the connection |
Port – rule controlling the connection for a TCP or UDP port |
|
Allow the connection |
Program – rule controlling the connection for a program |
|
Allow the connection |
(1) By default, the TCP port 1883
is used by the MQTT broker that is required for transferring data via MQTT. If you use a different TCP port for the MQTT broker, allow the connection for this different port.
Alternate solution (only applicable, if there are not error messages when loading the application): Click Allow access for the Windows security alert.
If you are using only the built-in PLC for Neuron Power Engineer, you can click Cancel as well. The built-in PLC is automatically started and you can use it in Neuron Power Engineer anyway. However, in order to address remote PLCs it will be necessary to adjust the existing firewall rules as mentioned above.