Mitsubishi Electronics QD75P Code output function, Code on signal output timing, With mode, Md.25

12CONTROL SUB FUNCTIONS

12.7.3 M code output function

MELSEC-Q

The "M code output function" is used to command sub work (clamping, drill rotation, tool replacement, etc.) related to the positioning data being executed.

When the M code ON signal (X4, X5, X6, X7) is turned ON during positioning execution, a No. called the M code is stored in " Md.25 Valid M code".

These "

Md.25

Valid M code" are read from the PLC CPU, and used to command

auxiliary work. M codes can be set for each positioning data. (Set in setting item " Da.10 M code" of the positioning data.)

The timing for outputting (storing) the M codes can also be set in the "M code output function".

The details shown below explain about the "M code output function".

[1]M code ON signal output timing

[2]M code OFF request

[3]Precautions during control

[4]Setting the M code output function

[5]Reading M codes

[1]M code ON signal output timing

The timing for outputting (storing) the M codes can be set in the "M code output function". (The M code is stored in " Md.25 Valid M code" when the M code ON

signal is turned ON.)

The following shows the two types of timing for outputting M codes: the "WITH" mode and the "AFTER" mode.

(1) WITH mode

The M code ON signal (X4, X5, X6, X7) is turned ON at the positioning

start, and the M code is stored in " Md.25			Valid M code".
	ON
Positioning start signal
[Y10, Y11, Y12, Y13]OFF
	ON
BUSY signal [XC, XD, XE, XF] OFF
	ON
M code ON signal	OFF
[X4, X5, X6, X7]
Cd. 7 M code OFF request	0 1 0	0 1	0
Md. 25 Valid M code	m1	m2
	V	Dwell time
Positioning
			t
Da. 1 Operation pattern	01		00

m1 and m2 indicate set M codes.

Fig. 12.38 M code ON/OFF timing (WITH mode)

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