Yaskawa MP900 Series MPLOGGER - Manual (Page 56)

4 Basic Operation
4.7.3 Write Cells
4-26
• The block setup function is not only an efficient way to set up write cells, but it also affects the
communications performance.
Cells that have been set up to write to the controller using the block setup function will attempt to
send all the data when the
Write Button is clicked. If there is too much data, one transfer com-
mand may not be enough to process all the data. If this occurs, the data will be devided into a
number of groups and transferred using as many commands are needed. If each cell is set up indi-
vidually instead of using the block setup function, a data write command will be sent for each cell,
significantly slowing the performance. With individual settings, the concurrency of data may also
be lost.
• To modify the settings for cells that have already been set up, such as to change the register type or
the reference number, right-click the desired cell to open the Cell Setting Dialog Box. The current
settings will be displayed in the dialog box. Make the desired changes and click the OK Button to
save them. If consecutive write cells have been set, the entire range of cells that was originally set
will be modified if one or more of the cells are selected.
• Deleting a Cell with Settings
Select the cell that you want to delete and open the Cell Setting Dialog Box. The current cell set-
tings will be displayed. Check the content and click the Delete Button.
If the cell was setup using the block setup function, the whole block will be deleted even if you
select only part of the block.
• Be careful when changing the data format to hexadecimal because it will convert the display for-
mat to text. If a decimal number display is selected, data should be 0 to 9 in ASCII. If a hexadeci-
mal number display is selected, data should be 0 to 9, A to F, and a to f (or a to f) in ASCII. If the
entered characters or values are invalid, an error will occur when the
Write Button is clicked.
• When the data is successfully written to the controller, a message will appear saying that the writ-
ing process has been completed.
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