When communicating inside the display unit using the Direct Access Method, the LS area is secured.
This area is useful for temporarily storing control handling within a display unit that does not have a device/PLC address (for example, a switch's Interlock Settings), or for temporarily storing values calculated within the display unit.
LS Area List
*1 The System Data Area can exclusively use a maximum of 20 words. The Read Area can exclusively use a maximum of 256 words. The User Area's top address is the Read Area's top address (20) + Read Area's size.
Do not set addresses for Parts which span the System Data Area and Read Area, or the Read Area and User Area.
The device address and size of each address mapped to the LS area differs depending on the device address bit length set in [System Area Start Address].
|
Device Address Bit Length |
Mapped Words and Size |
|---|---|
|
8 bit |
2 words (16 bits) |
|
16 bit |
1 word (16 bits) |
|
32 bit |
1 word (32 bits) |
A.1.1.1 Details About Each Address - LS Area (Direct Access Method)
A.1.1.5 Device/PLC System Data Area Allocation Procedure