Hi,
im trying to create an Modbus local Server with port 502 on nodered.
it fails with “Error: listen EACCES: permission denied 0.0.0.0:502”
what is the problem?
Allready spend over 8 hours without any success 
Best regards Alex
I probably have to start node-red as root.
Can someone please tell me how it works on the cerbo gx?
very thanks