Send CAN Frame


The "Send CAN Frame" tool lets you directly send CAN frames.

It works best in combination with the "Show Raw Data" option in the CBUS Console, because packets are entered here in raw hexadecimal format.

The top section of the window lets you send a single frame. Just type the packet's data contents as hexadecimal numbers, for example "83 7C".

If you want to specify header contents, precede the packet data with the header in "( )" characters or "[ ]" characters for a standard or extended header, respectively.

You can also enter packets in CBUS address format, e.g. "+1", "-2" or "+n4e1" ( without the quotation marks ). Once you've entered the packet, just click "send".

The bottom section lets you enter from one to four frames that will be repeatedly sent in sequence, with user-defined delays in between.

Press the "Go" button to start the transmission sequence, and press it again to stop the sequence.


You can view this help page within JMRI by selecting Help > Window Help in the top bar of the MERG Send CAN Frame window.

Main JMRI MERGCBUS Support page.