MoTeC M150 set up help

Hi Guys,

I'm completely new the Motec world, I'm installing an M150, PDM30 and C125 with Single LTC. Have it all wired in and now going through the set up, have most of the initial set up done in M1 Tune with a GPR Package, and have configured the PDM30 with basic functions. However I have a CAN BUS issue. The ECU Receive is giving a CAN Timeout Diag error. I'm new to CAN BUS protocol and assume is an address issue.

Appreciate any help on the initial set up and how to configure the CAN BUS addresses. I'm only using CAN BUS 1

We're just guessing since you haven't posted any configurations.

CAN timeout isn't an issue unless you think there is something to be received, and another device is transmitting. Just enabling the ECU CAN, would result in timout errors unless you've programmed the PDM or C125 to send data (perhaps simulating a driver switch, or a sensor that is connected to the C125 but needs to be used by the M150). See the help in M1 Tune for "ECU Receive" for details on configuring your C125 for this.

Can you provide a short description of what you expect the devices to transfer. I will give you a start for the default I would expect:

M150 to transmit the standard messages (0x640, 0x650, etc) to the C125 Dash. In M1 Tune, see help for "ECU Transmit" for details on configuration. Dash will display and/or log these channels.

M150 to transmit the default PDM messages (0x118 - 0x11A) - In M1 Tune, see help for "ECU Transmit" for details.

PDM to send normal messages on 0x500. M1 Tune can receive/display this. Dash will also receive and possibily use for alarms and/or logging.

Thanks David, that makes sense as I haven’t configured the C125 yet so, no message was being sent. I saw the time out as an error.

The car is an EK Civic K24 swapped, dedicated Track Car.

I’m trying to write a function for the PDM to allow me to have a button on the MoTec 15 button CAN keypad as an Ignition switch that I can then reference to turn on all the accessories, ECU, injectors, and ignition etc. The keypad is wired on CAN 1 (Only using CAN1) with it’sown separate power output that it becomes powered as soon as the PDM has voltage.

I want the ignition switch logic to be a button that I press to turn on, then to avoid accidental bumps it requires a long press of 0.5 Second to turn it off. I’ve got that to work, But the problem I have is that the keypad buttons still work when the ignition switch is off. This means that if a button is bumped i.e the wipers, or a blower fan, nothing happens as I’ve written in logic of each output that it won’t work until ignition switch on is true. However the keypad still recognizes a press and cycles the counter or toggles the output and then as soon as the ignition switch is pressed the wipers or fan work.

I tried writing it to be false if the ignition switch is off, and this works if I cycle the ignition switch and it then latches in the PDM as ignition switch state OFF (1) but on first start up the off switch function state remains 0 so therefore the false logic for the off switch is flawed. I’ve attached my PDM config file, I’m still working through the set up so it’s not fully complete yet has incomplete functions etc

You have an unusual set of requirements -- which are not like the typical use case. Generally a race car master switch will turn off the PDM and the keypad. So buttons will only be active when the car is "on". it will take a lot of logic to stop buttons from controlling switches in a straightforward manor.

Are you sure this is really a requirement, that can't be solved with a separate "master power" switch into the PDM, that would just not power the keyboard unless on?