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10 - 7 
MELSEC-Q
 
10   HIGH-LEVEL POSITIONING CONTROL 
 
10.3 Setting the block start data 
10.3.1 Relation between various controls and block start data 
The " block start data" must be set to carry out "high-level positioning control". The 
setting requirements and details of each " block start data" item to be set differ 
according to the "
 Da.13 
 Special start instruction" setting.  
 
The following shows the " block start data" setting items corresponding to various 
control systems. The operation details of each control type are explained starting in 
section 10.3.2. Also refer to section "10.4 Setting the condition data" for details on 
"condition data" with which control execution is judged.  
(The " block start data" settings in this chapter are assumed to be carried out using GX 
Configurator-QP.) 
 
High-level positioning 
control 
Block start data 
setting items 
Block start 
(Normal 
start) 
Condition 
start 
Wait start 
Simulta-
neous start 
Repeated 
start 
(FOR loop) 
Repeated 
start 
(FOR 
condition) 
NEXT start 
 
0 : End 
 
 
 
 
 
 
 
 Da.11    Shape 
1 : Continue 
 
 
 
 
 
 
 
 Da.12    Start data No. 
1 to 600 
 Da.13   
Special start 
instruction 
0 1 2 3 4 5 6 
 Da.14    Parameter 
– 
Condition data No. 
No. of 
repetitions 
Condition 
data No. 
– 
 
  :  One of the two setting items must be set.  
  :  Set when required (Set to " –  " when not used.) 
  :  Setting not possible 
  :  Setting not required (Setting value will be ignored. Use the initial value or a value within the setting range.) 
 
       The "NEXT start" instruction is used in combination with "repeated start (FOR loop)" and "repeated start (FOR 
condition)". Control using only the "NEXT start" will not be carried out.  
 
REMARK 
It is recommended that the "block start data" be set whenever possible with GX 
Configurator-QP. Execution by PLC program uses many PLC programs and 
devices. The execution becomes complicated, and the scan times will increase.