175
5. Click on the
Close
button to exit the PLC Control summary.
Note:
Types of Controls
13.26.1 Change Window
This operation uses two addresses. The Read address holds the active window number. If the value stored in the Read
address changes to a valid window number, that window number then replaces the currently displayed window. The new
window number is moved into the Read A 1 register.
Read Address
Controls screen changes by number
Read A 1
Destination screen number is written
Note:
System Register LW9055 acts as an offset for this type of control.
Example: A PLC Control / Change window uses D10. If (LW9055) = 10, and D10 = 14 then the HMI changes to
window 24. After changing, the HMI writes back 14 to D11.
13.26.2 Back light control
Turns the display’s backlight OFF when the Read address turns ON (positive edge triggered). When the backlight is OFF, a
touch reactivates the backlight.
13.26.3 Screen hardcopy
Monitors the Read address. When the bit turns ON, the HMI prints the active base window. Once the printout is done, the
HMI turns the controlling bit OFF. You must enable the printer in the System Parameter settings to use this feature.
13.26.4 Report printout
Prints the screen number designated by the Read address. After the screen is printed, the Read address is set to 0. For
example, suppose that the Read address is D100. When the value of D100 is equal to 20, the HMI prints out window 20 in
the background. When the HMI is finished printing, the HMI writes zero to address D100. You must enable the printer in the
System Parameter settings to use this feature.
Note:
System Register LW9054 specifies what is printed out in the report.
Report printout options
0
: Text & Meter & Trend
1
: Text & Meter & Trend & Shape but no pattern
2
: Text & Meter & Trend & Bitmap
3
: Text & Meter & Trend & Bitmap & Shape but not pattern
4
: All
Note:
System Register LW9055 acts as an offset for the Report printout control.
Example: A PLC Control / Report printout uses D100. If (LW9055) = 6, and D100 = 24 then the HMI prints out window
30. After printing, the HMI writes back 0 to D100.
13.26.5 Back light control (write back)
Turns the display’s backlight OFF when the Read address turns ON (positive edge triggered). Whenever the backlight is
turned OFF (through PLC control or time-out) the HMI turns the Read address bit OFF in the PLC. When the backlight is
OFF, a touch reactivates the backlight.
13.26.6 Write data to PLC (base window)
The active, base window number is written to the Read address. Pop-up windows do not have their number written to the
Read address.
Summary of Contents for MMI-1500
Page 2: ...ii...
