Mitsubishi Electric M800VW Series Programming Manual page 497

M800V/M80V Series PLC Programming Manual (2/2)
12 Handling of M, S, T, B Functions
12.3 Miscellaneous Command High-Speed Output
The table below shows operational differences between the high-speed method and the normal method. Regarding the
sequence process, program an appropriate process for each operation.
The shift timing from a mis-
cellaneous function com-
mand block to the next block
Strobe signal
Operation of the "FIN1"
Operation of the "FIN2"
Operation of the "High-speed
M function finish" signals
MFIN1 to MFIN4
SFIN1 to SFIN6
TFIN1 to TFIN4
BFIN1 to BFIN4
The shift timing from a mis-
cellaneous function com-
mand block to the next block
Strobe signal
Operation of the "FIN1"
Operation of the "FIN2"
Operation of the "High-speed
M function finish" signals
MFIN1 to MFIN4
SFIN1 to SFIN6
TFIN1 to TFIN4
BFIN1 to BFIN4
IB-1501668-B
High-speed method (Parameter "#1278 ext14/bit1" = "1")
Method that waits for a finish signal from
PLC
The program shifts to the next block when the
logic level of an M function finish signal changes
to the same as of the strobe signal.
Logically inverted.
Not used
Not used
Required to make the logic level the same as of the strobe signal.
Normal method (Parameter "#1278 ext14/bit1" = "0")
Method that waits for a finish signal from
PLC
The program shifts to the next block at the falling
edge of the "FIN1" signal or at the rising edge of
the "FIN2" signal.
Turns ON.
At the rising edge of the "FIN1" signal, the NC system turns OFF the strobe signal.
It is essential to program a sequence process that turns OFF the "FIN1" signal after ensuring an
inactivation of the strobe signal.
At the rising edge of the "FIN2" signal, the NC system turns OFF the strobe signal.
It is essential to program a sequence process that turns OFF the "FIN2" signal after ensuring an
inactivation of the strobe signal.
Not used
Method that does not wait for a finish signal
from PLC.
When a miscellaneous function command is set
not to wait for a finish signal with the parameter,
the program shifts to the next block as soon as
the strobe signal is output to the PLC.
When a miscellaneous function command is set
to wait for a finish signal with the parameter, the
operation will be the same as of the method that
waits for a finish signal from the PLC.
Method that does not wait for a finish signal
from PLC.
When a miscellaneous function command is set
not to wait for a finish signal with the parameter,
the program shifts to the next block as soon as
the strobe signal is output to the PLC.
When a miscellaneous function command is set
to wait for a finish signal with the parameter, the
operation will be the same as of the method that
waits for a finish signal from the PLC.
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