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8
Emergency messages
ID 441896.05
WE KEEP THINGS MOVING
Operation manual
40
8.2
State Changes of the EtherCAT® State Machine
When an error occurs during the state change of the inverter, the slave sends an
appropriate emergency message. The structure of this message is similar to the
message for a device malfunction:
Emergency message for state change error
Coding of the emergency error code in the first and second bytes and the error
register in the third byte complies with the specifications of IEC 61158-26-12. The
following table lists possible coding for the emergency error code:
The error register specifies the state of the EtherCAT state machine at the time
the emergency message is sent. The following table lists possible coding:
The DiagCode value gives information on what caused the error:
1
st
byte 2
nd
byte
3
rd
byte
4
th
byte 5
th
byte 6
th
byte 7
th
byte 8
th
byte
A0
hex
00
hex
01
hex
02
hex
0
0
0
0
Emergency
Error code
Error
Register
DiagCode
DiagData 1 and 2
Emergency Error Code
Meaning
A000
hex
Transition from Pre-Operational to Safe-
Operational was not successful.
A001
hex
Transition from Safe-Operational to Pre-
Operational was not successful.
Error Register
State of the EtherCAT State Machine
1
hex
Initialising
2
hex
Pre-Operational
3
hex
Safe-Operational
4
hex
Operational
DiagCode Meaning
00
hex
SyncManager at impermissible address
SyncManager 0
(write mailbox)
01
hex
SyncManager at impermissible address
02
hex
PDO length is not correct
03
hex
SyncManager parameterized incorrectly