HBM SOMATXR, Руководство по эксплуатации, Страница: 27 / 152

Functional description
CANBus
A4461-2.0 HBM: public
25
6.2 Error events
6.2.1 Detecting transmit and receive path errors
Errors in the transmit direction (from the module to the
CAN bus) are then only monitored if data has been
configured for sending in the module parameterization.
Conversely, errors are then only detected in the receive
direction (CAN bus to module) if at least one CAN
receive decoder is actively configured.
6.2.2 LED and error status behavior
The LED glows yellow whenever a BUS warning occurs,
and red in all other error situations.
A timeout and “loss of signal” are indicated by a yellow
LED, provided monitoring has been activated. This is
because the “MaxRepetitionTime” value selected in the
decoder parameterization was greater than “0”.
The error register can be read out via the MX Assistant.
The LED follows the status messages in the error
register, see Chapter 3.
Error events often only occur sporadically and briefly. If
the application also requires reliable detection of one-off
events, you can set “error mode” in the parameterization
(see Section 1.3) so that errors are only deleted when
the error status is read out.