Mitsubishi Electric F930GOT-BWD-E, Руководство пользователя

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Graphic Operation Terminal F930GOT Creation of Display Screens (FX-PCS-DU/WIN-E) 9
9-48
9.5.4 Write Constant
The "Write Constant" object writes a fixed constant to the PLC when a touch key is pressed.
The "Write Constant" object is convenient: When it is used, sequence programs such as trans-
fer instructions are not required.
u u u u
Contents of setting
n n n n
Important point
1) Write constant to a timer/counter
Even if "0" is written to the current value or set value of a timer/counter, the output contact in
the PLC is not reset. (Though the current value or set value becomes 0, the output contact
does not become OFF.)
To reset a timer/counter, execute an RST instruction in the sequence program or reset the
timer/counter using the switch function.
2) Data file transfer condition
"
✔
" indicates that transfer is enabled.
Attribute Contents of setting
Control Input Enter a key which actuates write of a constant.
Constant Enter a fixed value to be written to a word device.
Word Device
Enter a word device to which the fixed value is written.
Enter "Data Size" and "Changed Value" (Current or Preset) also.
PLC FX Series A Series
PLC memory type
✔
:RAM
✘
:EPROM *1
✔
:RAM
✔
:EPROM
✘
:EEPROM
*1 When the read/write destination
is a data register, data can be
transferred without regard to the
memory type.
PLC operation status
✔
:RUN
✔
:STOP
✔
:RUN
✔
:STOP
GOT memory type
✔
:Flush memory
✔
:Flush memory
PLC entry code
✘
:While entry
code is regis-
tered (while
write is inhib-
ited)
✔
:While entry
code is
unlocked or is
not registered
✘
:While entry
code is regis-
tered (while
write is inhib-
ited)
✔
:While entry
code is
unlocked or is
not registered