EtherCAT Communication
5.1.5 Profile Specific Objects (6000
h
-FFFF
h
)
These objects are identical for all EtherCAT Slave devices supporting the profile number 5000
(“CAN Interface”).
5.1.5.1 Object 6000
h
CAN Rx Message Queue
Relationship of message queues
(here according to the default configuration of queue sizes)
n
… Number of Rx messages, which are accumulated at the moment of test / comparison of the
„Rx counter“ (Number of Messages, Index 6000h, Sub 3),
but maximum 16 (Default, Index 8000h Sub 21)
Figure 23:
Relationship of the CAN Rx message queues
The number of transmitted Rx messages (
n
) is written in
Number of Rx Messages
(Sub-Index 3)
and must not be changed until the "Rx Counters" are equal again.
For the chronological sequence see the example in Figure 25 on page 40.
Index
Sub-
Index
Name
Data Type
RW
Default
6000
h
0
Number of sub-indexes
UINT8
RO
1
Tx Counter Gateway
UINT16
RO
2
Rx Counter Gateway
UINT16
RO
3
Number of Rx Messages
UINT16
RO
4
Tx Transaction Number
UINT16
RO
5
Rx Message 1
OCTET-STRING[10]
RO
...
...
...
...
m
Rx Message m-4
OCTET-STRING[10]
RO
This object contains the CAN interface input messages with 11 Bit ID.
Page 38 of 92
Manual • Doc. No.: C.2922.21 / Rev. 1.4
CAN-EtherCAT