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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
00000
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
232C9004
JOG operation
2 3 3 2 9010
Machine OPR
2 3 3 3 9011
Manual pulse generator
2
32
99001
Fast OPR
2
32
A9002
Current value changing 2
32B
9003
b15 b12 b8 b4 b0
ABCD
B
AC
D
Buffer
memory
Monitor value
D
C
B
A
Positioning operation
Stored contents
Storage value
Reference
(Decimal)
Start No.
A
000
to
BCD
1
001
1B58
0258
7000
1 B 5 9 7001
1 B 5 A 7002
1
B5
B7003
1
B5C
7004
600
Md.5
Start
(Hour)
The starting time is stored.
Monitoring is carried out with a hexadecimal display.
Not used
0
b15 b12
000000000010101
b8 b4 b0
0
150
Buffer memory (stored with BCD code)
0
0 0 to 2
00 to 23 (hour)
0 to 3
Monitor value
0
015
Starting history (Up 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
100100100000111
b8 b4 b0
9074
Buffer memory (stored with BCD code)
0 to 5 0 to 9
00 to 59 (minute)
0 to 9
Monitor value
9407
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.