Diagnostics and troubleshooting Issue 01/05
CANopen Option Module Operating Instructions
120 6SE6400-5BC00-0BP0
430: Hardware fault
431: Parameter incompatible
432: Unknown SDO error
433: SDO command specifier invalid
434: Invalid SDO block size
435: Invalid SDO block crc sum
436: No resources available for SDO connection
437: Bad requested error control mechanism
438: SDO timed out
439: SDO invalid togglebit
440: SDO invalid transmode
441: Bad device state
442: Bad CRC
1 Status of CAN physical layer:
Bits representing CAN errors (because there may be multiple errors)
0: no errors
Bit 0: not used
Bit 1: CAN error passive (CAN error counter(s) >=127, too many error frames)
Bit 2: CAN overflow (too many can messages in a too short time)
Bit 3: error control (Node-guarding or Heartbeat error event)
Bit 4: Sync error (Sync object not received within configured communication cycle)
Bit 5: Bus-Off (CAN controller in Bus-Off state or fatal error on option card)
2 Status of the CANopen network state-machine:
0: CANopen in initialization state
1: Executing a Reset or Fatal Error
2: CANopen in pre-operational state
3: CANopen in stopped state
4: CANopen in operational state
3 counter for PDO telegrams received error-free since power on.
4 counter for telegrams transmitted since power on.
5 counter for all telegrams received error-free since power-on.
this counter includes all CanBus messages, including those not directed to this module.
6 CAN Error counter and Fatal Code
Value > 32767: Fatal Error Code.
0 – 32767 error counter. Counter wraps around back to 1 when count > 32767. Increments
on any CAN passive error, CAN busoff error or CAN overflow error.
If this value is changing rapidly and warning = A0701 then the CAN bus is overloaded.
• Reduce Bus loading
If this value is changing rapidly and warning = A0700 or A0702 then the CAN bus is not
healthy.
Check and if required correct most significant digit of P2041.04 (baud rate) for every bus
node
• check cable connection between bus nodes
• check cable shielding
• Reduce Bus loading
• replace the CANopen option module
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