M84 CAN Messaging Structure for PDM Control

Discussion and support for MoTeC's new entry level ECUs

M84 CAN Messaging Structure for PDM Control

Postby Kowalski on Wed Mar 25, 2020 11:22 pm

Hello,

New to the forum and MoTec, wondering if someone can help. I have an M84 and two PDM15s in a racecar. Everything is wired and 95% working. I would like to use M84 CAN data for the ECT and EOT to turn on cooling fans in one PDM. Is this possible to do with packets sent to the PDM as in input? Also would need data structures on the temperatures to set my ON/OFF temps.

Any help would be appreciated. Thank you!
Kowalski
 
Posts: 6
Joined: Mon Mar 23, 2020 9:13 pm

Re: M84 CAN Messaging Structure for PDM Control

Postby David Ferguson on Thu Mar 26, 2020 2:15 am

Start with setting the PDM address (280 decimal, 0x118 as used in the PDM) in the M84 ECU Manager using Adjust->General Setup->Communications->CAN Setup.

Here is a thread with specific details about the fixed M84 data sent to the PDM:

viewtopic.php?f=17&t=2994

For more background, you should probably take a look at this Webinar and see how the general process of setting up the PDM to work with CAN inputs works:

https://www.youtube.com/watch?v=9s_y07zLt2k&hd=1
David Ferguson
Veracity Racing Data
Check out Shift RPM - https://shiftrpm.veracitydata.com
David Ferguson
Pro User
 
Posts: 799
Joined: Fri Nov 07, 2008 1:45 am
Location: Paso Robles, California

Re: M84 CAN Messaging Structure for PDM Control

Postby Kowalski on Thu Mar 26, 2020 3:07 am

Awesome, thank you David! I'll get started on those things and update later with how it turns out.
Kowalski
 
Posts: 6
Joined: Mon Mar 23, 2020 9:13 pm

Re: M84 CAN Messaging Structure for PDM Control

Postby Kowalski on Wed Apr 29, 2020 4:34 am

Thank you again for your help David Ferguson. I got everything set up and working with the M84 and both PDMs using CAN. Was actually a lot simpler than I thought it would be. I thought I would have to construct the packets themselves, fortunately MoTec has done that already. I just had to direct the to and from and where to get what.
Kowalski
 
Posts: 6
Joined: Mon Mar 23, 2020 9:13 pm


Return to M84 ECUs

Who is online

Users browsing this forum: No registered users and 5 guests

cron