Implemented CANopen objects
Overview
I−1005: COB−ID SYNC message
13
l
98
EDSMF2178IB EN 3.0
13.2.4 I−1005: COB−ID SYNC message
Index (hex)
0x1005
Name
COB−ID SYNC message
Subindex Default
setting
Value range Access Data type
0 0x80 or
0x80000080
0 ... 2
32
− 1 rw U32
This object ensures that sync telegrams can be created for the communication module and
that the identifier value can be written.
Creating sync telegrams
Sync telegrams are created when bit 30 (see below) is set to "1".
The time between the syn telegrams can be set using the object I−1006.
Writing identifiers
The default setting for receiving PDOs is "0x80" in the 11−bit identifier (also according to
the CANopen specification). This means that all communication modules are default set
to the same sync telegram.
If sync telegrams are only to be received by certain communication modules, their
identifiers can be entered with values up to "0xFF". The identifiers can only be changed
when the communication module does not send sync telegrams (bit 30 = 0).
Data telegram assignment
Byte 8 7th byte Byte 6 Byte 5
MSB U32 LSB
31 30 29 28 ... 11 10 ... 0
0/1 0/1 0 Bit value: 0 11−bit identifier
Bits Value Description
0 ... 10 X 11−bit identifier
11 ... 29 0 The extended identifier is not supported. Any of these bits must be "0".
30
0 Device does not create sync telegrams.
1 Device creates sync telegrams.
31 X optional
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