AMX Data Event, onerror
Frequently Asked Questions
Written by Will Fraser
Updated at February 4th, 2026
Brand:
- AMX
Models:
- Netlinx
Question:
What are the errors in NetLinx that are returned on the Data Event, ONERROR?
Answer:
Here is a listing of some of the ONERROR values for IP_CLIENT_CLOSE and IP_CLIENT OPEN:
Result (via ONERROR event):
2: General Failure
4: Unknown host
6: Connection refused
7: Connection timed out
8: Unknown connection error
9: Already closed
10: Binding error
11: Listening error
14: Local port already used
15: UDP socket already listening
16: Too many open sockets
These are listed in the NetLinx Programming Language Manual on pages 122 through 124. You can also find other error messages that relate to specific functions listed in this section of the manual called "Keywords and Run-Time Library Functions."