Mitsubishi Electronics QD75D, QD75P 12.7.3 M code output function, [1] M code ON signal output timing, (1) WITH mode

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MELSEC-Q
12 CONTROL SUB FUNCTIONS
12.7.3 M code output function
The "M code output function" is used to comm and sub work (clamping, drill rotation,
tool replacement, etc.) related to the positioni ng data being executed.
When the M code ON signal (X4, X5, X6, X7) is t urned 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 re ad from the PLC CPU, and used to command
auxiliary work. M codes can be set for each p ositioning 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 cod e 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 ou tputting M codes: the "WITH"
mode and the "AFTER" mode.
(1) WITH mode
The M code ON signal (X4, X5, X6, X7) is turned O N at the positioning
start, and the M code is stored in " Md.25 Valid M code".
Md. 25 Valid M code
Cd. 7 M code OFF request
Positioning start signal
BUSY signal
M code ON signal
Positioning
01 00
m1 m2
m1 and m2 indicate set M codes.
Dwell time
V
t
10100
0
OFF
OFF
OFF
ON
ON
Da. 1 Operation pattern
[XC, XD, XE, XF]
[Y10, Y11, Y12, Y13]
[X4, X5, X6, X7]
ON
Fig. 12.38 M code ON/OFF timing (WITH mode)