61
PLUS+1 GUIDE / Re: Transmitting 16bit J1939 CAN message
« Last post by Lukey on March 15, 2024, 03:06:01 PM »Hi llang, I'm not sure how you determined 9 bits length, the overall length should be 8 bytes.
See below of example for an engine simulator I have that sends to PGN 61444 Electronic Engine Controller 1 random RPM/Speed message.
You need to find a breakdown of the PGN, that will tell you your SPN start position in the 8 bytes and the length of the message;
example her for PGN 61444 https://www.simmasoftware.com/products/j1939/j1939-pgn/
See below of example for an engine simulator I have that sends to PGN 61444 Electronic Engine Controller 1 random RPM/Speed message.
You need to find a breakdown of the PGN, that will tell you your SPN start position in the 8 bytes and the length of the message;
example her for PGN 61444 https://www.simmasoftware.com/products/j1939/j1939-pgn/