User`s manual

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MELSEC
7 UTILITY OPERATION
7.3.7 Changing word device values continuously
Change the specified word device data for the number of specified points being set.
(1) Selecting the menu
Select [Device Write] – [Continuous Change in Data] from the menu bar.
(2) Dialog box
Item Description
Device Type Sets the device type, block number, and network number to change the
data.
Device No. Sets the head address to change the data.
(HEX : Hexadecimal, DEC : Decimal, OCT : Octal)
Setting Data Sets the data to be continuously changed.
(HEX : Hexadecimal, DEC : Decimal)
Points Sets the number of points to perform continuos change of the data.
(HEX : Hexadecimal, DEC : Decimal, OCT : Octal)
DANGER
• Configure the interlock circuit over the sequence program so that the entire system
works safely at all times for data change control to the PLC in operation.
Also, decide on corrective actions for an event of data communication error between
the PC and PLC CPU in use.