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Serial output to motec dash

Posted: Thu Jan 22, 2015 5:14 am
by bazdub
Hi, I'm trying to get a hondata (hardware version 2) to work talk to a motec c125 dash.

I've wired E24 to the RX pin on the dash, and set the multiplexer to "datalogger (9600)" but the dash doesn't receive anything.

Is the datalogger supported on the V2? It is a PRB ECU. Any other ideas?

Re: Serial output to motec dash

Posted: Thu Jan 22, 2015 10:43 am
by Hondata
Does the Motec expect TTL serial or RS232 serial? What packet format does the Motec use? Is it the same as the this: http://www.hondata.com/help/kmanager/se ... sub=serial

Re: Serial output to motec dash

Posted: Thu Jan 22, 2015 1:21 pm
by bazdub
I believe it's TTL (0v low), but I'll have to confirm that later with Motec. They do support the Hondata, and the packet format they have configured is exactly as described in that link.

The KPro I have appears to be quite old (SN: 4036) if that makes any difference.

Re: Serial output to motec dash

Posted: Thu Jan 22, 2015 6:09 pm
by bazdub
Edit: Bad info

Re: Serial output to motec dash

Posted: Sun Jan 25, 2015 5:55 am
by bazdub
Can someone at least confirm whether or not it should work based on the hardware info? If no, fine, I'll upgrade to a V4 and try the CAN functionality. If it is, and this is the level of support that's available, then I'll buy something else.

Re: Serial output to motec dash

Posted: Sun Jan 25, 2015 11:37 pm
by Hondata
If the Motec expects TTL then its not going to work as the ECU output is 12V/0V. I'd get the exact voltage and polarity from Motec first.