A.1.2.2 System Data Area (Memory Link)

This shows the contents of write data in each address of the System Data Area.

System Data Area Structure

^*1 When using WinGP, setting up the Year/Month/Date/Minute will update WinGP and the shared IPC/computer clock.

^*2 When you write data 0x00 to 0x1F, communication interruption may occur. This is unaffected by [System Settings] workspace, [Display Unit] screen's [Touch Panel Detection] setting.
Word address 10 interrupts output on release (when touch is OFF) and word address 13 interrupts outputs on touch (when touch is ON).
The buzzer on the switch sounds to inform the operator the operation is executing.
Therefore, by setting up addresses 10 and 13 to one switch using the [Multifunction List], the buzzer sounds whenever touch turns ON and touch turns OFF.

^*3 You can use D-script for word address interrupt outputs.
When using D-script to write values to word address 10 or 13, the bottom 8 bits are output as an interrupt code.

^*4 To use this feature, go to [System Settings], click [Display Unit], and in the [Operation] tab select the [Touch Buzzer Sound] check box.

^*5 To use this feature, go to [System Settings], click [Display Unit], and in the [Operation] tab select the [Output to External Buzzer Terminal] check box.

^*6 It is used with LS0014 Bit 4 (Enable Buzzer Output) or Bit 5 (Enable AUX Output).

^*7 To use the direct access method and memory link method together, set the [Reflect in Device/PLC] option from the System Settings, [Display Unit] page, [Display] area. If the [Reflect in Device/PLC] is not set, the screen change using the memory link method will be disabled because even if you write a screen number to the address "0015" using memory link method, the value will be changed to LS0008 by communicating using direct access method right away.

^*8 Change Screens by touch is not available while the top bit (forced screen change bit) in the mapped device/PLC's System Data Area [Change-To Screen] address is ON. However, you can use the system variable #H_ChangeScreenNo to change screens.

^*9 Only display units with built-in replacement batteries are used.

Details About Each Address - System Area

• Reserved

Addresses "0", "2", "9", and "14" are reserved.

• Status

Monitor only the necessary bits. Reserved bits are sometimes used for display unit system maintenance, so do NOT turn them ON/OFF.

• Error Status

When an error occurs in the display unit, the corresponding bit turns ON. After the bit turns ON and the power turns OFF, the status is maintained until the GP changes from offline mode back to active mode.

• Clock Data (Current)

Whatever the value, it will be stored in BCD, in top bits 0 to 7.
[Year] is the 2 digits of the year, [Month] is 2 digits from 01 to 12, [Day] is 2 digits from 01 to 31, [Hour] is 2 digits from 00 to 23, and [Minute] is 2 digits from 00 to 59.

For example, 2005, October 19, 21:57

• Year→Write "0005" to Word Address "4"

• Month→Write "0010" to Word Address "5"

• Day→Write "0019" to Word Address "6"

• Hours→Write "0021" to Word Address "7"

• Minutes→Write "0057" to Word Address "8"

• Interrupt Output (When touch is OFF)

If writing to a Word Switch (16 bit), when you take your finger off the Switch, the bottom 8 bits are output as an interrupt code. (Control code "FFh" will not be outputted.)

• Control

^*1 The setting combination to control the buzzer is as follows.

• Screen Display ON/OFF

Shows the screen when the value is "0h" and hides the screen when the value is "FFFFh". Values other than "0h" and "FFFFh" are reserved. When the screen display is hidden, the next touch on the screen will turn the display back ON.

• Interrupt Output (When touch is ON)

When writing to a Word Switch (16 bit), the lower 8 bits are output from the display unit to the host as an interrupt code.

• Current Screen Number

Set the Change-to Screen Number. The setup range differs depending on the [Data Type of Display Screen Numbers] option, available from the [System Settings], [Display Unit] link, in the [Display] tab's [Screen Settings] area.

The data type is Bin. 1 to 9999

The data type is [BCD]. 1 to 7999

*7 To use the direct access method and memory link method together, set the [Reflect in Device/PLC] option from the System Settings, [Display Unit] page, [Display] area. If the [Reflect in Device/PLC] is not set, the screen change using the memory link method will be disabled because even if you write a screen number to the address "0015" using memory link method, the value will be changed to LS0008 by communicating using direct access method right away. In addition, screen change using LS0008 is not reflected to the mapped device/PLC's System Data Area [Change-To Screen]. As a result, screen changes may not be available from the device/PLC. (Unable to return to the screen before switching)
If you are not setting the [Reflect in Device/PLC] option, design the system to clear the change screen number to zero after screens are changed.
There is a method to change screens by force when you cannot change screens from the device/PLC side.
Turn ON the top bit (forced screen change bit) in the mapped device/PLC's System Data Area [Change-To Screen] address, and use the other bits to define the change to screen number. (Enter the address that is the value of which 8000(h) is added to the screen number you want to display. ) While the force screen change bit is ON, you cannot use touch operations to change screens. However, you can use the system variable #H_ChangeScreenNo to change screens.

• Window Control

Controls the window display. 
12.7.2 Window - Word Action / Basic

• Window Number

Stores the Global Window's registration number selected indirectly: 1 to 2000 (BIN/BCD)

• Window Display Position

Stores the Global Window's top-left display position, selected indirectly. "+18" shows the X coordinate, "+19" shows the Y coordinate. The data type is BIN or BCD.