Start Of A Record - Festo CPX Series Manual

3. Drive functions

3.3.1 Start of a record

1
Setpoint record
number
Output data
0
1
Start
CPOS.START
0
1
Acknowledge Start
SPOS.ACK
0
1
Motion Complete
SPOS.MC
0
1
Actual record
number
Input data
0
Fig. 3/10: Record start sequence
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
N − 1
N − 1
1 2
t
min
t at least 1 bus cycle waiting time. Recommendation: 1 PLC cycle.
min:
Not required if consistent data transmission is used.
1 Set the required record number in the PLC's output data.
Until the start, the CMAX continues to reply with the num
ber of the record last processed.
SCON.FAULT must be 0 during the entire sequence.
2 If SPOS.ACK (Acknowledge Start) = 0, the PLC can initiate
execution of the record with a rising edge at CPOS.START.
N
N
3 4 5 6 7
N + 1
3−57