Closed jimmyd-be closed 3 years ago
When I connect port 3 with A and port 4 with B on my MAX485 module for RS485 seriële communication USB device. I always got "No communication with the instrument (no answer)". Do you have any clue where the problem can be?
When I connect port 3 with A and port 4 with B on my MAX485 module for RS485 seriële communication USB device. I always got "No communication with the instrument (no answer)". Do you have any clue where the problem can be?