chrisdutz
commented
1 month ago This is actually not a bug. Active communication in Java has never been implemented. The beginning of the bacnet driver was a paid gig, where I had to build a driver to passively observe a bacnet network.
Sebastian worked hard on an active version in go. Not quite sure about the state there.
Right now I have no plans to do the implementation of an active bacnet driver in Java.
Perhaps others can help here or you want to get your fingers dirty :-)
I think the heavy lifting of defining all the types is done and finished.
Chris
zhucPPl
sruehl
What happened?
Content: I have encountered an issue while using the plc4j-driver-bacnet (version 0.12.0). Upon creating a connection, I received the following error message: "Active connections not yet supported." Upon inspecting the source code, I discovered that the issue stems from the protocol being set to passive=false. Further investigation revealed that none of the supported transports (udp, tcp) are returning true, indicating that they do not support active connections. Additionally, when attempting to use the 'pcap' transport, I received the error message "Unsupported transport pcap," which has left me confused.
Here is the relevant code snippet:
java String connectionString = "bacnet-ip:pcap://127.0.0.1:47808"; PlcConnection plcConnection = PlcDriverManager.getDefault().getConnectionManager().getConnection(connectionString);
I can confirm that the address used in the connection string is valid, as I have successfully implemented BACnet using bacnet4j. Currently, I have utilized plc4j to implement the modbus and knx protocols without issues, but encountered this problem while implementing the BACnet protocol. I would greatly appreciate any assistance in resolving this matter. Thank you.
Version
v0.12.0
Programming Languages
Protocols