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5 DATA USED FOR POSITIONING CONTROL
Storage item
Storage details
[Storage details]
[Reading the monitor value]
b15
Buffer
Md.3
memory
Start
information
Md.4
The starting No. is stored.
Start No.
Md.5
The starting time is stored.
Start
(Hour)
Md.6
Start
The starting time is stored.
(Minute:
second)
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.
This area stores the start information (restart flag, start origin, and start
axis):
•
Restart flag: Indicates whether the operation has or has not been
•
Start origin : Indicates the source of the start signal.
•
Start axis : Indicates the started axis.
Monitoring is carried out with a hexadecimal display.
b12
b8
b4
0 0 0 0 0
Not used
Start origin
Stored contents
PLC CPU
External signal
Peripheral device
Restart flag
Stored contents
Storage value
Restart flag OFF
0
Restart flag ON
1
Monitoring is carried out with a hexadecimal display.
b15
Buffer
memory
Monitoring is carried out with a hexadecimal display.
Buffer memory (stored with BCD code)
b15
0
Monitoring is carried out with a hexadecimal display.
Buffer memory (stored with BCD code)
b15
0
5 - 88
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Reading the monitor value
halted and restarted.
b0
Monitor
value
Storage value
00
01
10
A
B
C
D
b12
b8
b4
b0
A
C
B
D
Start No.
Stored contents
A
Positioning operation
0
0
1
1
1
1
1
JOG operation
2
Manual pulse generator
2
Machine OPR
2
Fast OPR
2
Current value changing
2
Simultaneous start
2
0
0
1
5
b12
b8
b4
b0
0 0 0 0 0 0 0 0 0 0 1 0 1 0 1
0
0
0 to 2
0 to 3
Not used
4
9
0
7
b12
b8
b4
b0
1 0 0 1 0 0 1 0 0 0 0 0 1 1 1
0 to 5
0 to 9
0 to 5
0 to 9
MELSEC-Q
Start axis
Stored contents
Storage value
1
Axis 1
Axis 2
2
Axis 3
3
4
Axis 4
Monitor value
A
B
C
D
Storage value
Reference
(Decimal)
B
C
D
001
0
0
1
to
2
5
8
600
B
5
8
7000
B
5
9
7001
B
5
A
7002
B
5
B
7003
B
5
C
7004
3
3
2
9010
3
3
3
9011
3
2
9
9001
3
2
A
9002
9003
3
2
B
3
2
C
9004
Monitor value
0
1
5
0
00 to 23 (hour)
Monitor value
4
9
0
7
00 to 59 (minute)
00 to 59 (second)
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