CAN-Bus Timing of HV700 and HV780

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mkeller
Posts: 8
Joined: Tue Oct 08, 2013 9:29 am

CAN-Bus Timing of HV700 and HV780

Post by mkeller » Mon Jan 09, 2017 2:31 am

Hello everybody,

can anybody tell me the exact CAN-Bus bit-timing configuration of the HV7x0 displays? Do they follow the recommendations of SAE J1939-11: Samplepoint at ~87,5% ?

We need the bit timing of each device on the bus to calculate the maximum bus length.

Thx
boyce
Enovation Controls Development
Enovation Controls Development
Posts: 322
Joined: Wed Sep 08, 2010 5:09 pm

Re: CAN-Bus Timing of HV700 and HV780

Post by boyce » Mon Jan 09, 2017 10:27 am

Here are the timings done by the engineer:

This is the sample point %:
Bit Sample Point
Rate kbps at %
1000 70.8
800 86.7
500 87.5
250 87.5
125 87.5
100 87.5
50 87.5
20 87.5
10 87.5
Boyce Schrack
Enovation Controls
mkeller
Posts: 8
Joined: Tue Oct 08, 2013 9:29 am

Re: CAN-Bus Timing of HV700 and HV780

Post by mkeller » Fri Jan 13, 2017 7:12 am

Perfect, thank you for your quick reply!