Error messages - Error reactions
Instruction handbook CANopen slave BM4-O-CAN-03
Document no. 5.02014.06 Baumüller Nürnberg GmbH
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8.3
8.3.1.2 Establish a communication for b maXX PLC
After booting the option module CANopen slave tries to establish the communication with the
CANopen network. If the module cannot establish the communication, the red LED H2 blinks:
Figure 12: Error - no communication b maXX PLC
As soon as a few valid Data frames have been send/received, the red LED H2 turns off. This
means, that although there is a valid communication the LED still can blink.
If the module has established the communication, bu
t if the communication is faulty, you can
only recognize the errors by using a bus monitor of the master. In the following you will find the
most common errors.
Error Trouble shooting
m CANopen slave
doesn‘t report to
the CAN network
h Remove connector and plug in again
h Re
move module, check address at the DIP switch and plug
in module again
h Check whether there is a boot project on the b maXX PLC,
initializing the CANopen slave
m Slave sends
error frames
h Remove terminating resistor connector on both ends and
plug them in again
h Re
move connector and plug in again
h Check baud rate (all devices at the same CAN-Bus must
have an identical transfer rate)
m No cyclic com-
munication
h Check whether there is a boot project on the b maXX PLC for
initializing the CANopen slave
h Check
PDO-Mapping
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