Peak IPEH-002069-V2, Руководство пользователя, Страница: 57 / 102

PCAN-Diag 2 – Measuring Functions for the CAN Bus
57
CAN termination
Indicates the measured resistance value.
Measurement Interpretation
~ 60 Ohm The termination at the CAN bus is ok in terms of measure-
ment.
Make sure that the termination resistors are positioned at each
end of the bus and not, for example, at taps in the middle of
the bus.
missing
The CAN bus is missing any termination resistor, or the used
resistor is too large. Set up a correct termination as described
above.
~ 120 Ohm Only one termination resistor is present.
Install a further 120-Ohms resistor at the opposite bus end.
< 45 Ohm Too many termination resistors are present at the CAN bus.
A reason may be that on one bus end both a separate termi-
nation resistor as well as a CAN node with internal termination
are installed.
--- Ohm
The measurement was not successful.
not cal.
(after the
resistance value)
The measurement facility is not calibrated, meaning that the
indicated measuring value may have a larger deviation from
the actual resistance value.
Please contact our support about a calibration (see address on
page 2).
Internal termination
If
On
, the internal termination resistor (124
Ω
) is activated.
Altering the setting at this place is only temporary (until switching
off the device). The internal termination can be set permanently in
the
Device Settings .
Start
The measurement is repeated. This may be useful after doing
changes on the CAN bus.