Festo Электромотор MTR-DCI - Manual (Page 161)

5. Commissioning
5-63
Festo P.BE-MTR-DCI-DN-EN en 1209a
Start/stop record
Nominal record
number in output
data
Stop CCON.B1
(STOP)
Acknowledge Start
SPOS.B1 (ACK)
Motion Complete
SPOS.B2 (MC)
Actual record
number input data
N – 1 N N + 1
N – 1 N
1
0
1
0
1
0
1
0
1
0
1
2
3
4
6
1
0
1
0
Axis is moving
SPOS.B4 (MOV)
Start CPOS.B1
(START)
N + 1
5
1
Precondition:
“Acknowledge Start” = 0
2
Rising edge at “Start” results in
application of the new record number
N and setting of “Acknowledge start”
3
As soon as “Acknowledge start” is
detected by the PLC, it can reset
“Start” to 0
4
The controller responds with a falling
edge at “Acknowledge start”
5
As soon as “Acknowledge start” is
detected by the PLC, it can create the
next record number
6
An ongoing positioning operation can
be stopped with “Stop”
Fig. 5/4: Flow diagram for “start/stop record”