Canopen Trouble Shooting - Beckhoff FC5101 Documentation

Error Description
0x2101 Insufficient memory for low-priority queues
0x2102 Insufficient memory for low-priority queues
0x2103 Insufficient memory at node boot-up
0x2104 Insufficient memory at node boot-up
0x2105 Insufficient memory at node boot-up
0x2106 Insufficient memory at node boot-up
0x2107 Insufficient memory at node boot-up
0x2108 Insufficient memory at node boot-up
0x2109 Insufficient memory at node boot-up
0x210A Insufficient memory at node boot-up
0x210B Insufficient memory at node boot-up
0x210C Insufficient memory at node boot-up
0x210D Insufficient memory at node boot-up
0x210E Insufficient memory at node boot-up
0x210F Insufficient memory at node boot-up
0x2110 Insufficient memory at node boot-up
0x2111 Insufficient memory at node boot-up
0x2112 Insufficient memory at node boot-up
0x2113 Insufficient memory at node boot-up
0x2114 Insufficient memory at node boot-up
0x2301 Insufficient memory for low-priority queues
0x2302 Insufficient memory for low-priority queues
6.6

CANopen Trouble Shooting

Error Frames
One sign of errors in the CAN wiring, the address assignment or the setting of the baud rate is an increased
number of error frames: the diagnostic LEDs then show Warning Limit exceeded or Bus-off state entered.
Error Frames
Warning limit exceeded, passive error or bus-off state are indicated first of all at those nodes that
have detected the most errors. These nodes are not necessarily the cause for the occurrence of er-
ror frames!
If, for instance, one node contributes unusually heavily to the bus traffic (e.g. because it is the only
one with analog inputs, the data for which triggers event-driven PDOs at a high rate), then the prob-
ability of its telegrams being damaged increases. Its error counter will, correspondingly, be the first
to reach a critical level.
Node ID / Setting the Baud Rate
Care must be taken to ensure that node addresses are not assigned twice: there may only be one sender for
each CAN data telegram.
Test 1
Check node addresses. If the CAN communication functions at least some of the time, and if all the devices
support the boot up message, then the address assignment can also be examined by recording the boot up
messages after the devices are switched on. This will not, however, recognize node addresses that have
been swapped.
Test 2
Check that the same baud rate has been set everywhere. For special devices, if the bit timing parameters
are accessible, do they agree with the CANopen definitions (sampling time, SJW, oscillator).
FC5101 and FC5102 Version: 2.0
Error handling and diagnostics
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