Omron NT21 Series, Reference Manual

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5-1 Section Examples of Actual Applications of Direct Access
399
•
Function: Input key – keyboard
•
Keyboard screen No.: Numbers of keyboard screens created in (1) to
(4)
•
Action type: Open
•
Guide character display:Check mark set, fixed character string, guide
characters HELP
By setting the action type of the touch switch on the base screen as Toggle, the
window can be opened and closed from the base screen.
Continually Monitoring a Specific PC Bit and Displaying a Message on a Window
When It Comes ON
Opening a window and displaying an error message on it when the monitored bit
at the PC comes ON.
MOVE CLOSE
TEMPERATURE
ABNORMAL
Bit
Window
PC
PT
ON
1, 2, 3... 1. Set TEMPERATURE ABNORMAL as the initial value for any character
string memory table.
2. Make the following settings for any bit memory table.
•
PC Address: PC bit number to be monitored
•
Function: Alarm
•
String table entry: Number of the character string memory table for
which settings were made in (1).
3. Register an alarm list, set as indicated below, for window screen.
•
List Settings: Set the Start Bit Table Entry and No. of Bits
Referenced so as to include the bit memory table set in
(2) above.
4. Register Window Move touch switch and Window Close touch switch on a
window same as (3).
Example:
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