M Code Output Function - Mitsubishi Melsec-Q QD75P1 User Manual

Programmable logic controller q-series

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12 CONTROL SUB FUNCTIONS

12.7.3 M code output function

Positioning start signal

M code ON signal

Cd. 7 M code OFF request

Md. 25 Valid M code

Da. 1 Operation pattern

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 "

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

M code" of the positioning data.)

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

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 "

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 "

[Y10, Y11, Y12, Y13]

[XC, XD, XE, XF]

[X4, X5, X6, X7]

m1 and m2 indicate set M codes.

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

Valid M code".

Valid M code" when the M code ON

Valid M code".