Mitsubishi Electronics QD75P Storage item Storage details, History Up to 16 records can be stored

5 DATA USED FOR POSITIONING CONTROL

MELSEC-Q

Storage item

Storage details Reading the monitor value

[Storage details]

[Reading the monitor value]

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.

Monitoring is carried out with a hexadecimal display.

Md.3

Start information

history (Up to 16 records can be stored)
	Md.4
Starting
	Start No.

Md.5

Start (Hour)

Md.6

Start

(Minute:

second)

b15	b12	b8	b4	b0
Buffer	0 0 0 0	0				Monitor
memory
						value
	Not used
							Start axis
			Start origin				Stored contents	Storage value
			Stored contents		Storage value		Axis 1	1
							Axis 2	2
			PLC CPU	00
							Axis 3	3
			External signal	01
							Axis 4	4
			Peripheral device	10
	Restart flag
	Stored contents		Storage value
	Restart flag OFF		0
	Restart flag ON		1

Monitoring is carried out with a hexadecimal display.

	A	B	C		D					Monitor value
Buffer b15	b12	b8	b4		b0					A	B C D
memory	A	B	C		D
		Start No.
		Stored contents				Storage value						Reference
				A		B		C		D		(Decimal)
The starting No. is stored.		Positioning operation		0	0		0		1			001
							to
				0				5		8		600
						2
				1		B		5		8		7000
				1		B		5		9		7001
				1		B		5		A		7002
				1		B		5		B		7003
				1		B		5		C		7004
		JOG operation		2		3		3		2		9010
		Manual pulse generator		2		3		3		3		9011
		Machine OPR		2		3		2		9		9001
		Fast OPR		2		3		2		A		9002
		Current value changing		2		3		2		B		9003
		Simultaneous start		2		3		2		C		9004

Monitoring is carried out with a hexadecimal display.

Buffer memory (stored with BCD code)
The starting time is stored.	0	0	1		5		Monitor value
b15	b12		b8	b4	b0	0	0	1	5
0 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							00 to 23 (hour)

Monitoring is carried out with a hexadecimal display.

	Buffer memory (stored with BCD code)
The starting time is stored.		4	9		0		7		Monitor value
	b15	b12		b8		b4	b0	4	9	0	7
	0	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
								00 to 59 (minute)		00 to 59 (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.

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