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6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
Positioning start signal
Remote station READY signal
D75P2 READY signal
Start complete signal
BUSY signal
Positioning complete signal
Error detection signal
Positioning start signal
Remote station READY signal
D75P2 READY signal
Start complete signal
BUSY signal
Positioning complete signal
Error detection signal
Speed/position changeover signal
Fig. 6.8 Time chart for starting "speed/position changeover control"
(4)
Time chart for starting "main positioning control"
V
[RY(n+1)0]
[RX(n+7)B]
[RXn0]
[RXn1]
[RXn4]
[RXn7]
[RXnA]
Positioning start No.
Fig. 6.7 Time chart for starting "main positioning control"
(5)
Time chart for starting "speed/position changeover control"
V
Operation pattern(00)
Positioning data No.(1)
[RY(n+1)0]
[RX(n+7)B]
[RXn0]
[RXn1]
[RXn4]
[RXn7]
[RXnA]
Positioning start No.
Speed/position
changeover enable flag
Operation pattern
Positioning data No.
[RWwm]
Speed control
1
[RWwm]
[RY(n+2)8]
6 - 57
MELSEC-A
Dwell time
1(11)
2(00)
1
Position control
Dwell time
t
t
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