J1939-71 slots ascii

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young123
Posts: 14
Joined: Thu Jan 16, 2014 4:59 am

J1939-71 slots ascii

Post by young123 » Fri May 30, 2014 6:14 am

Hi,

I tried to enter a J1939 variable that contains 5 ascii digits.
I noticed that a Byte Length of more than 4 is not possible.
I see in the J1939-71 standard that a variant exists 'SAEat0005' that would allow this.

Are you deviating on this point from the standard ?

Perhaps it would be handy not to limit the amount of bytes to 4 but limit them only to the remining number of bytes in a parametergroup when editing the parameters ?
jpratt
Enovation Controls Development
Enovation Controls Development
Posts: 222
Joined: Mon Jun 21, 2010 11:18 am

Re: J1939-71 slots ascii

Post by jpratt » Fri May 30, 2014 7:07 am

You should be able to accomplish this by using a try using a FreeFormCAN message. This tool can handle a number of scenarios that we don't currently support in the standard PGN Setup including handling larger than 4 bytes...(up to all 7 bytes).
Jake Pratt
Software Development Manager
Josh.b@ST
Posts: 18
Joined: Tue Dec 06, 2011 10:00 am

Re: J1939-71 slots ascii

Post by Josh.b@ST » Fri May 30, 2014 8:55 am

7 bytes if you count from 0, 8 if from 1.

Just to clarify.