
9.6 Diagnostic history object (0x10F3)
9 Diagnostics processing
0: Warning messages are stored in the diagnosis
message queue (default).
1: Warning messages will not be stored in the diagnosis
message queue.
Bit 3: Disable error messages
0: Error messages are stored in the diagnosis message
queue (default).
1: Error messages will not be stored in the diagnosis
message queue.
Bit 4: Mode selection for diagnosis history handling
0: Overwrite mode. Old messages are overwritten by
new ones when buffer is full.
1: Acknowledge mode. New messages do only
overwrite messages which were acknowledged before.
Bit 5: Overwrite/Discard Information (read only)
In Overwrite mode:
1: Unacknowledged messages have been overwritten
(= buffer overrun) (SI3 is set to 0, too).
In Acknowledge mode:
1: Message buffer is full with acknowledged messages
and a new message is discarded.
Bit 6 – 15: reserved
9.6.6 Diagnosis Message Buffer
Depending on SI1, the EtherCAT
®
slave can store up to 64 messages; the
first message is stored in sub-index 6, the second in sub-index 7and so on.
When the queue is full, the EtherCAT
®
slave shall overwrite sub-index 6 and
the following, in a way that always the latest maximum messages (SI1) shall
be accessible by the EtherCAT
®
master.
Manual EtherCAT®
Version 1.1 04/2021
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