Posted: Wed Jun 24, 2015 8:04 pm
Pat, here is how to access the ECU channels with an older AIM unit.
1) Download and install the most current version of RaceStudio2 from the AIM web-site.
2) Launch RaceStudio2 and select the "Device Config" button.
3) In the menu that appears, select your data acquistion system. For example, "MXL".
4) A window appears listing all the various configurations saved for your device. There are a couple of menu lines at the top of the screen. On the lower menu line, you should see a button labeled "new" on the far left. Select the "new" button. A blank "new configuration" pops up on the screen.
5) On the new configuration, go down to "ECU Manufacturer". You should be able to open a menu of manufacturers. Scroll down until you find "SCCA Enterprises". Click on SCCA Enterprises.
6) The software will pop you back to the blank configuration screen. Take a look at what is listed as "ECU Model". In my case, this value defaulted to "Formula Enterprises". If you click on it, a meny should appear that includes "Spec Racer Ford, GEN3". Select Spec Racer. Then click "Ok" at the bottom of the "new configuration" pop up window.
7) The new configuration you just created will be highlighted at the bottom of the list of configurations residing your computer. You can go down to the highlighted line and change the installation name from 'Default' to something that is more descriptive. You can scan across and check that the logger, ecu manufacturer, and ECU model are correct. If you have GPS installed on your car, you will want to change the "Lap Timer" specified from the default of "Optical" to "By GPS".
8) Look up toward the top of the screen. Just above the "new" button you selected to start this process is a menu starting with "Select Configuration". Select the "Channels" tab immediately to the right. Scroll down the channels list. You should see several "channel identifiers" that start with ECU. These are the data items that are available from the ECU. Most of the channel names are straightforward. The one I struggled with was "SRF_ECT". This is water temp, Engine Coolant Temp.
9) If you scroll back up toward the top, you will see channel identifiers such as "CH_1", "CH_2", etc. This is where you will need to add in information relative to the sensors you are carrying over from your old configuration, such as brake pressure sensors. You need to name the sensors and carry over the appropriate sampling frequencies, sensor types, measuring units, low and high scales.
10) Before you go to "transmit" the new configuration to your data logger I would recommend "receiving" a copy of your old configuration so you have something to go back to if your new configuration turns out to be incorrect. Also be sure to download any data that you want to keep that is in the device before you transmit the new configuration. The "transmit" will erase all data that is in the logger.
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