10 HIGH-LEVEL POSITIONING CONTROL

10.3 Setting the block start data

10.3.1 Relation between various controls and block start data

MELSEC-Q

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

Da.11

0

: End

Shape

 

 

1

: Continue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Da.12

 

Start data No.

 

 

 

 

1 to 600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Da.13

 

 

Special start instruction

0

1

 

2

3

4

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No. of

Condition

 

 

Da.14

 

Parameter

 

Condition data No.

 

 

 

repetitions

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 sequence program uses many sequence programs and devices. The execution becomes complicated, and the scan times will increase.

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Mitsubishi Electronics QD75D, QD75P user manual Condition Next start Da.11 End, Da.12 Start data No Da.13, Da.14 Parameter