26.17.4 Manual Transfer Via Internal
Device
When a Special Data Display [Filing] is set with [Via Internal
Device], you can use a Switch Lamp Part [Special Switch] and point
to [File Item Switch] to transfer [SRAM -> Internal Device],
[Internal Device], [Device -> Internal Device], and [Internal
Device -> SRAM].
For example, when transferring from Backup
SRAM to Internal Device (Start Address: LS20) to Device/PLC
(Data length: 16bit)
Data stored in the internal device can display as required on
the screen of a display unit in a Data Display [Numeric Display].
Use this when you want to want to make small adjustments to the
data on the screen of a display unit before transferring it to the
device/PLC.
Structure of Filing Data Stored in the
Internal Device
When transferring data from Backup SRAM to the internal device,
the 16 consecutive words after the designated [Storage Start
Address] store the item names, and data are stored after that.
The item name's text is stored according to the Text Data Mode
settings.*1
For example, when the data length is 16
bits
When transferring data from the internal device to the
device/PLC, only data stored in the internal device are written to
designated addresses in the device/PLC.
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