User Manual

Table Of Contents
Acquire the Sign
al
CAN, CAN FD BUS
To acquire data from a CAN or CAN FD bus, you need to set up these items:
1. If you selected CAN, push Dene Inputs
and the appropriate side menu choices.
Bus B1
CAN
Dene
Inputs
Thresh-
olds
Congure
500 Kbps
B1 Label
CAN
Bus
Display
Event Table
2. Turn Multipurpose a to select the channel
connected to the CA N bus source.
CAN Input
(a) 1
3. Turn Multipurpose a to select the type of
CAN signal: CAN_H, CAN_L, Rx, Tx, or
Differential.
Signal
Type
CAN_H
4. Turn Multipurp ose a to set the Sample
Point to a percentage of the position within
the bit period or the unit interval.
Sample
Point
50%
For a CAN 2.0 bus the allowable sample
point range is 5% to 95%.
For a CAN FD bus the allowable sample
point range is 15% to 95%.
NOTE. CAN FD requires an accurately specied
sample point for correct decode and triggering..
NOTE. CAN FD uses the same sample point
percentage for bits transmitted at SD bit rates
and FD bit rates. For optimal performance, set
the s ample point to the value used for SD bits
(the "Arbitration Phase" sample point).
5. Push Congure and select the appropriate
side menu choices..
Bus B1
CAN
Dene
Inputs
Thresh-
olds
Congure
500 Kbps
4 Mbps
B1 Label
CAN
Bus
Display
Event Table
MDO3000 Series Oscilloscopes User Manual 75