MoTeC Interpreter - Manual (Page 11)

MoTeC Acquiring Data 9
Engine Management System M4/48/M8
Data is downloaded from the ECU via a MoTeC PC Interface cable attached
to the serial port of a Laptop/Desktop computer. Care must be taken to
ensure that the correct (labeled) end is attached to the ECU as both ends of
the cable use the same style of connector. The download is initiated from
within the DOS MoTeC Interpreter program by choosing the “Get Log Data”
then “Unload ECU” menu items. For the Windows MoTeC Interpreter
program click on the “Unload ECU” Icon in the toolbar or use the same
function from the Pull Down or Pop Up menus.
Note: For M4 ECU’s with a serial number of greater than 3000 running
version 6 or above software, a PCI cable is no longer needed to interface with
a PC. A standard serial comms cable can be used instead.
The PC can download a full 512kB data set from a MoTeC ECU in
approximately two minutes.
Logging Modes
The MoTeC ADL data logging system provides a range of techniques for
recording information about the performance of an engine and chassis. These
logging modes are Normal Logging, Fastest Lap logging and Burst Logging.
MoTeC ECU’s have only ‘Normal Logging’ and log whenever the engine is
running.
Normal Logging
Normal logging mode is the most common method for recording data, and will
satisfy the needs of the majority of users. Normal logging begins recording
data once the Start Logging condition is TRUE and continues logging until
the Stop Logging condition becomes TRUE. The Channels to be recorded
are defined in the configuration of the ADL or ECU. The number of samples
per second, for each channel, is defined in the device configuration.
Fastest Lap Logging (4MB and 8MB Logging Option
Only)
Fastest Lap Logging is similar to Normal Logging, where the channels to be
recorded and the number of samples per second is defined individually for
each channel. Data is recorded for the time between two lap beacons, and
stored if the lap time was faster then the previously recorded fastest lap.