2 position controller in the control system, Position controller in the control system, Beckhoff – BECKHOFF AX2000 CANopen communication profile User Manual

Page 128

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background image

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. 23

Trajektory

Control

Drive

Drive

Control

tcycle

speed

setpoint

Axis

1

Sync

Sync

S

tatus

Axis

1

S

tatus

Axis

2

400 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

cycle

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