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7 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
Positioning start signal
Programmable controller
READY signal
Module READY signal
Start complete signal [X(n+1)0 to X(n+1)7]
BUSY signal
Axis error occurrence signal
Cd.3
Start method
OPR request flag
[
Status: b0]
Md.7
OPR complete flag
[
Md.7
Status: b1]
7 - 20
Starting time chart
The time chart for starting each control is shown below.
(1) Machine OPR control starting timing chart
V
[Yn8 to YnF]
OFF
[Yn0]
[Xn0]
OFF
OFF
[Xn8 to XnF]
OFF
[Xn1]
OFF
OFF
Fig. 7.4 Machine OPR control starting timing chart
ON
OFF
ON
ON
ON
ON
OFF
9000
ON
MELSEC-Q
Near-point dog
Zero signal
t
ON
7 - 20
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