Mitsubishi Electronics QD75MH1 ユーザーズマニュアル

 
 

 

5 - 120 

MELSEC-Q

 

5   DATA USED FOR POSITIONING CONTROL 

 

Storage item 

Storage details 

Reading the monitor value 

 

Md.3

 

Start 
information 

[Storage details] 

This area stores the start information (restart flag, start origin, and start 
axis): 

•

 Restart flag: Indicates whether the operation has or has not been 

halted and restarted. 

•

 Start origin : Indicates the source of the start signal. 

•

 Start axis  : Indicates the started axis. 

[Reading the monitor value] 

 Monitoring is carried out with a hexadecimal display. 

Not used

0 0 0 0 0

b15

b12

b8

b4

b0

Buffer
memory

Monitor
value

PLC CPU

Stored contents

Storage value

00
01

10

External signal

 

Peripheral device

 

Start origin

 

Restart flag OFF

 

0

1

Restart flag ON

Restart flag

 

3

Axis 1

Axis 2
Axis 3
Axis 4

Start axis

 

1

2

4

Stored contents

Storage value

Stored contents

Storage value

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Md.4

 

Start No. 

The starting No. is stored. 

 Monitoring is carried out with a hexadecimal display. 

Simultaneous start

2

3

2

C

9004

JOG operation

2

3

3

2

9010

Machine OPR

2

3

3

3

9011

Manual pulse generator

2

3

2

9

9001

Fast OPR

2

3

2

A

9002

Current value changing

2

3

2

B

9003

b15

b12

b8

b4

b0

A

B

C

D

B

A

C

D

Buffer
memory

 

Monitor value

 

D

C

B

A

Positioning operation

Stored contents

Storage value

Reference

(Decimal)

Start No.

A

0

0

0

to

B

C

D

1

001

1

B

5

8

0

2

5

8

7000

1

B

5

9

7001

1

B

5

A

7002

1

B

5

B

7003

1

B

5

C

7004

600

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Md.5

 

Start 
Hour 

The starting time is stored. 

 Monitoring is carried out with a hexadecimal display. 

Not used

0

b15

b12

0 0 0 0 0 0 0 0 0 0 1 0 1 0 1

b8

b4

b0

0

1

5

0

Buffer memory (stored with BCD code)

 

0

 

0

0 to 2

00 to 23 (hour)

 

0 to 3

Monitor value

0

0

1

5

 

 
 
 
 
 
 
 
 
 
 

Starting history

 (U

p to 16 records can be stored) 

Md.6

 

Start 
Minute: 
second 

The starting time is stored. 

 Monitoring is carried out with a hexadecimal display. 

0 to 5

00 to 59 (second)

0

b15

b12

1 0 0 1 0 0 1 0 0 0 0 0 1 1 1

b8

b4

b0

9

0

7

4

Buffer memory (stored with BCD code)

 

0 to 5

0 to 9

00 to 59 (minute)

 

0 to 9

Monitor value

 

9

4

0

7

 

 
 
 
 
 
 
 
 
 
 

Note: If a start signal is issued against an operating axis, a record relating to this event may be output before a 

record relating to an earlier start signal is output.