MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 176)

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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 b
e
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.