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MELSEC-Q
12 CONTROL SUB FUNCTIONS
(2) AFTER mode
The M code ON signal (X4, X5, X6, X7) is turned ON at the positioning
completion, and the M code is stored in "
Md.25
Valid M code".
01 00
m1
m2
V
t
OFF
ON
OFF
OFF
ON
ON
00 1
Positioning start signal
BUSY signal
M code ON signal
Positioning
m1 and m2 indicate set M codes.
Md. 25 Valid M code
Da. 1 Operation pattern
Cd. 7 M code OFF request
[XC, XD, XE, XF]
[Y10, Y11, Y12, Y13]
[X4, X5, X6, X7]
Fig. 12.39 M code ON/OFF timing (AFTER mode)
[2] M code OFF request
When the M code ON signal (X4, X5, X6, X7) is ON, it must be turned OFF by
the sequence program.
To turn OFF the M code ON signal, set "1" (turn OFF the M code signal) in
"
Cd.7
M code OFF request".
Buffer memory address
Setting item
Setting
value
Setting details
Axis
1
Axis
2
Axis
3
Axis
4
Cd.7
M code OFF
request
1 Set "1: Turn OFF the M code ON signal". 1504 1604 1704 1804
Refer to Section 5.7 "List of control data" for details on the setting details.
The next positioning data will be processed as follows if the M code ON signal is
not turned OFF. (The processing differs according to the "
Da.1
Operation
pattern".)
Da.1
Operation pattern
Processing
00
Independent positioning control
(Positioning complete)
01 Continuous positioning control
The next positioning data will not be executed until the M code ON
signal is turned OFF.
11 Continuous path control
The next positioning data will be executed, but a warning "M code
ON signal ON start" (warning code: 503) will occur.