Mitsubishi Electric M80V Series Manual page 432

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
Cont. Signal name
A M function finish 1
[Function]
This status signal informs the controller that specified miscellaneous (M) function, spindle (S) function, tool (T) function or
2nd miscellaneous function (A, B or C) is completed on the PLC side.
[Operation]
If the M, S, T or 2nd M function command is executed during automatic operation, the code and each function strobe
(MFn, SFn, TFn, BFn) turns ON.
The PLC executes the specified operation after verifying that one (or more) of the M, S, T and B functions has been
commanded by each function strobe. After the execution is completed, turn ON the "M function finish 1" signal (FIN1).
When the controller verifies that the "M function finish 1" signal turns ON, each function strobe is turned OFF.
For PLC, check that each function strobe is turned OFF, and then turn OFF the "M function finish 1".
With the signal FIN1 turned OFF, the controller proceeds to the next block.
The following is an example of a time chart when the auxiliary function (M) is used.
Command program
M function strobe 1 (MF1)
M function finish 1 (FIN1)
M function finish signals include "M function finish 1" and "M function finish 2" (refer to the next page). The difference is
whether to proceed to the next block at the falling edge or at the rising edge. These can be used properly for each
operation in one PLC.
Note
(1) The "M function finish 1" signal (FIN1) is common to M, S, T and B functions.
(2) The "M function finish 1" signal is also a signal for updating the spindle rotation speed output (S command data, etc.)
when the S function is executed.
(3) If the "M function finish 1" signal is ON before M, S, T or B function is specified, data pertinent to M, S, T or B function
are not output.
(4) When the "Reset & rewind" signal (RRW) is sent to the controller by the M02 or M30 command, do not return "M func-
tion finish 1" signal. If the "M function finish 1" signal is returned by the M02 command at the end of the machining pro-
gram, the NC alarm (the program error (P36)) occurs.
(5) This signal is not used in the high-speed method (parameter "#1278 ext14/bit1" is set to "1").
[Related signals]
(1) M function finish 2 (FIN2: YC1F)
(2) M function strobe n (MFn: XC60)
(3) S function strobe n (SFn: XC64)
(4) T function strobe n (TFn: XC68)
(5) 2nd M function strobe n (BFn: XC6C)
(6) M, S, T, B function data (output to file register R: R504 and later)
(7) Reset & rewind (RRW: YC1A)
Abbrev. $1 $2
FIN1 YC1E YD5E YE9E
M08
Next block
419
$3 $4 $5 $6
YFDE Y111E Y125E
$7 $8
Y139E Y14DE
IB-1501616-D