5
Operation
44
Festo – EXCM-30/-40-...-PF-EN – 1603 – English
5.2.4
Start of positioning
ACK
START
MC
Setpoint
values
2
3
4
5
6
7
1
2
4
1
Setpoint values preselected
– With control over I/O interface through creation of signals DIN1 … DIN5 (record number)
– With control over CANopen interface and control via Ethernet through creation of the setpoint
values byte 3 … byte 8 (dependent on the operating mode, record number or speed, as well as
positioning absolute or relative to the setpoint position)
2
Requirements for START:
MC=1
ACK=0
3
Start signal through control: START=1
4
Response of the CMXH to rising edge of START
3
:
ACK=1
MC=0
5
Response of the control to
4
: START=0
6
Response of the CMXH to
5
: ACK=0
7
Positioning task completed: MC=1
Fig. 5.1
Timing diagram