turck BL20 - Page 121

D301087 0308 - BL20 CANopen 4-49
Object Dictionary
4
Object 1005
hex
- SYNC COB-ID
Object 1005
hex
defines the COB-ID for the Synchronization Object
(SYNC). The BL20-CANopen gateway not generate SYNC
messages, only receive them.
Structure of the SYNC COB-ID entry (Unsigned32):
MSB LSB
Bits
31 30 29 28 to 11 10 to 0
11-bit ID
×00 00 0000 0000 0000 0000 11-bit identifier
29-bit ID
×01 29-bit identifier
Table 15:
Description of the
SYNC COB-ID
entry
Bit
number
Value Description
31 (MSB)
Xfixed
30
0
1
Module does not generate a SYNC message
Module generates a SYNC message
29
0
1
11-bit ID (CAN 2.0A) → for BL20
29-bit ID (CAN 2.0B)
28 to 11
0
X
if Bit 29 = 0
if Bit 29 = 1: Bits 28 to 11 of the SYNC-COB-
ID
10 to 0
(LSB)
X Bit 10 to 0 of the SYNC-COB-ID
Note
Bit 30 is static, i.e. cannot be changed.