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Problem: No Data on CAN-Bus
Posted: Tue 7. Nov 2017, 11:27
by sunbo_ll
I've now a problem with IPEH-002021. The adapter worked well with our device together till last week. It can be connected using PCAN-View, but no data can be exchanged any more. The led blinks always and PCAN-View shows the status with OK. The baudrate 1MBit/s is correctly applied.
Re: Problem: No Data on CAN-Bus
Posted: Tue 7. Nov 2017, 12:37
by M.Maidhof
Hi,
as a first check, please measure the transceiver voltages:
http://www.peak-system.com/forum/viewto ... f=120&t=52
regards
Michael
Re: Problem: No Data on CAN-Bus
Posted: Tue 7. Nov 2017, 13:27
by sunbo_ll
Voltages:
PIN2(CAN-L) vs PIN3(GND), 0V
PIN7(CAN-H) vs PIN3(GND), 5V
It seems that there is an error in the hardware.
Re: Problem: No Data on CAN-Bus
Posted: Tue 7. Nov 2017, 13:43
by M.Maidhof
Hi,
yes, looks like a broken CAN transceiver PCA82C251T. You can try to replace it (SO-8) if you have some soldering experience.
regards
Michael
Re: Problem: No Data on CAN-Bus
Posted: Tue 7. Nov 2017, 14:09
by sunbo_ll
Thank you very much. I'll try to do it.