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MELSEC-Q

 

10   HIGH-LEVEL POSITIONING CONTROL 

 

10.3.2 Block start (normal start) 

In a "block start (normal start)", the positioning data groups of a block are continuously 
executed in a set PLC starting from the positioning data set in "

 Da.12 

 Start data No." 

by one start. 

 

Section [2] shows a control example where the " block start data" and "positioning 
data" are set as shown in section [1].  

 

[1]   Setting examples 

 

(1) Block start data setting example 

 

Axis 1 block 

start data 

 Da.11   

Shape 

 Da.12   

Start data No. 

 Da.13   

Special start 

instruction 

 Da.14   

Parameter 

1st point 

1: Continue 

1 

0: Block start 

– 

2nd point 

1: Continue 

2 

0: Block start 

– 

3rd point 

1: Continue 

5 

0: Block start 

– 

4th point 

1: Continue 

10 

0: Block start 

– 

5th point 

0: End 

15 

0: Block start 

– 

•

 

 

 

 

 

•

 

 

 

 

 

 

(2)   Positioning data setting example 

 

 

Axis 1 position-

ing data No. 

 Da.1  

Operation pattern 

 

1 

00: Positioning complete 

 

 

2 

11: Continuous path control 

3 

01: Continuous positioning control 

4 

00: Positioning complete 

5 

11: Continuous path control 

6 

00: Positioning complete 

1 block

1 block

 

•

 

 

 

 

10 

00: Positioning complete 

 

 

•

 

 

 

 

15 

00: Positioning complete 

 

 

•

 

 

 

 

 

REMARK 

Block   : 

"1 block" is defined as all the data continuing from the positioning data in which 
"continuous positioning control" or "continuous path control" is set in the operation 
pattern (

 Da.1 

) to the positioning data in which "independent positioning control 

(Positioning complete)" is set.