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I'm trying to create a J1939 message with a PGN equal to 130. But I couldn't determine how the ID is going to look like in order to get that exact PGN.

Can you please share a suggestion?

Thanks a lot

The Beast
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  • Isnt it just R=0, DP=0, PF=0x00, PS=0x82? (assuming you mean decimal 130) – BeB00 Mar 06 '18 at 01:12
  • @BeB00 , No can you give the full 29-bit identifier then. ie: with 0x008200 would give PGN = 0x00 as from http://alumni.cs.ucsb.edu/~savior/convert-j1939-id-to-pgn.php – The Beast Mar 06 '18 at 21:04
  • That calculator wont give you a PGN of 130. If that calculator is correct, then a value of 130 isnt possible. The calculator wont accept a PF of 0, which is required to get PGN=130 – BeB00 Mar 06 '18 at 22:18
  • Ignoring the calculator, the value 0x00008200 will give you the correct PGN, but that may not be a valid ID. Why do you want a PGN of 130? – BeB00 Mar 06 '18 at 22:21
  • @BeB00 sorry it seems to be 0x130 in Hex. What do you think ? – The Beast Mar 06 '18 at 23:05
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    In that case it might be 0x00000980, but I dont think these calculators are calculating the PGN properly, or else you cant have a PGN that low. It seems that the PGN always has 6 trailing 0's – BeB00 Mar 06 '18 at 23:26
  • I used another tool CANdb++ and it gave me the same results for 0x00000980 gave me pgn = 0x00 so they cannot be wrong :( – The Beast Mar 07 '18 at 00:09
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    Then I guess you cant have a PGN that low. Again, why do you want one? – BeB00 Mar 07 '18 at 00:59

1 Answers1

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if 130 is in hex PGN=0x130, it means PDU Format is 1 and PDU Specific is 30, it depends on your option if your priority is 1 and Source Address is 1 your ID is 0x4013001. search j1939 frame on google for details

Baba Barghi
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