
The SYNC telegram looks like this:
COB-ID
080
Afterwards, both axes send back their incremental positions and the contents of their status regis
-
ters when the SYNC Object with the COB-ID for the 2
nd
TPDO is received:
COB-ID Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Comment
181 23 01 00 00 00 00 03 44
position + manufacturer
status register for axis1
182 A5 02 00 00 00 00 03 44
position + manufacturer
status register for axis2
If an error occurs during operation, the axis concerned transmits an Emergency message, which
could appear as follows:
Emergency Object
COB-ID
Emergency error
Error
register
Category
Low High
081 10 43 08 01 00 00 00 00
motor temperature, tempera-
ture, manufacturer-specific
081 00 00 08 00 00 00 00 00
6.2.1.2 Position controller in the control system
128 CANopen for AX2000/2500
Appendix 07/2007 BECKHOFF
SYNC
RPDO Trajektory No. 32
Position controller
speed setpoint
Status
TPDO "Enhanced Status" No. 2
Trajektory
Control
Drive
Drive
Control
t
cycle
speed setpoint
Axis 1
Sync
Sync
Status
Axis 1
Status
Axis 2
4
μs
t 1 ms per Axis at 1 MBaud
E.g. 2 axes
speed setpoint
Axis 2
position value
Axis 1
position value
Axis 2
c
cle
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