Omron NT31 Operation Manuals page 621

Examples of Actual Applications of Direct Access
Continually Monitoring a Specific PC Bit and Displaying a Message on a Window When It Comes ON
Example:
610
Opening a window and displaying an error message on it when the monitored bit at
the PC comes ON.
NT31/NT31C
TEMPERATURE
ABNORMAL
MOVE CLOSE
Window
(1) Set "TEMPERATURE ABNORNAL" as the initial value for any character
string memory table.
(2) Make the following settings for any bit memory table.
- PC Address:
- Function:
- String table entry:
(3) Register an alarm list, set as indicated below, for window screen.
- List Settings:
(4) Register "Window Move" touch switch and "Window Close" touch switch on a
window same as (3).
PC
Bit
ON
PC bit number to be monitored
Alarm
Number of the character string memory table for
which settings were made in (1).
Set the "Start Bit Table Entry" and "No. of Bits
Referenced" so as to include the bit memory table
set in (2) above.
Section 10-1