12 - 103
MELSEC-A
12 CONTROL AUXILIARY FUNCTIONS
(c) Start time chart
The following time chart assumes that the positioning data No. 1, 2, 3, 4
and 5 of axis 1 are executed consecutively by "indirectly specification" as
an example.
1) Indirectly specification data setting example
Axis 1 indirectly specification No.
Positioning data No. for indirectly
specification No. 8001 for axis 1
8001 1
2) Positioning data setting example
Axis 1 positioning data No.
Da.1
Operation pattern
1 11: Continuous path control
2 01: Continuous positioning control
3 11: Continuous path control
4 11: Continuous path control
5 00: Positioning complete
3) Start time chart
Positioning start signal
PLC READY signal
AD75 READY signal
Start complete signal
BUSY signal
Positioning complete signal
Positioning start No.
V
t
Error detection signal
Positioning data No. for
indirectly specification No.8001
[Buffer memory address 4500]
Positioning data No.
5(00)
Operation pattern
1(11)
4(11)
3(11)
2(01)
8001
1
Cd.11
Dwell time
[Y10]
[X0]
[Y1D]
[X1]
[X4]
[X7]
[XA]
Dwell time
Fig. 12.47 Start time chart for positioning control using indirectly specification function
To Next Page
Loading...
