Technical documentation:
MyChron 3 XG LOG
– Version 1.07
3
How to use the ECU-RPM-POWER input
Your
MyChron 3 XG LOG
is equipped with a 7 pins female connector
labelled as ECU-RPM-POWER. This multi-purpose connector is used for:
●
ECU connection
– CAN protocol
●
ECU connection
– RS232 serial protocol
●
Power input
: external
9 – 15V
power source,
RED (+)
and
BLACK
(-
) wires;
●
RPM input
: the logger has 2 supplementary RPM inputs for coil
(150-400 V) or square wave (8-50 V) RPM signals. Usually the
RPM signal is sampled from the ECU and so you do not need to
use one of these 2 wires.
To connect your
MyChron 3 XG LOG
to the ECU, please use the serial
RS232 / CAN cable and connect it to the gauge as shown in Figure 4.
Please note that your ECU may be equipped with a CAN or with an
RS232 serial communication protocol, so you do not have to connect
both “CAN + / CAN -” and “RS232 TX / RS232 RX” wires to the ECU,
but only the ones concerning the correct communication protocol.
CAN + & CAN -
RS232 TX & RS232 RX
}
ENGINE'S
ECU
CH1
Beacon
Speed
CH5
CH4
CH3
CH2
Power
RPM
ECU
GND
Figure 4:
How to connect Your
MyChron 3 XG LOG
To the ECU
How to connect MyChron 3 XG LOG to the PC
In order to connect your
MyChron 3 XG LOG
to the PC, please use the
USB data download cable and plug it both in the gauge’s USB port and in
the PC’s USB port, as explained in Figure 5. Moreover,
please use a 9-15
Volts external power source
to switch on the gauge.
CH1
Beacon
Speed
CH5
CH4
CH3
CH2
ECU
Power
RPM
Figure 6:
How to connect Your
MyChron 3 XG LOG
to the Pc
