Omron NT31 Operation Manuals page 289

Areas for Control/Notification
278
- Battery status (bit 13)
This bit is set to "1" (ON) when the voltage of the battery that backs up the inter-
nal memory of the NT31/NT31C (built-in battery) is low.
If the battery voltage drops, it is impossible to retain data with the resume func-
tion and to retain history records, therefore the battery must be replaced with a
new one within one week after the "battery" bit is set to "1" (ON). For details on
how to replace the battery, refer to 11-3-1 "Replacing the Battery" (page 634).
- Screen switching strobe (bit 12)
This bit is set to "1" (ON) when the NT31/NT31C screen is changed by an in-
struction from the host or by operation at the NT31/NT31C (ex. use of screen
changeover function). After notification to the host, it is automatically returned
to "0" (OFF).
- Numeral setting strobe flag (bit 11)
This bit is set to "1" (ON) when a numeric value is input to a numeral memory
table using the numeral input function of the NT31/NT31C. After notification to
the host, it is automatically returned to "0" (OFF).
At the same time, the number of the numeral memory table to which the input
was made is notified to the "content update memory table" word.
- Character string setting strobe flag (bit 10)
This bit is set to "1" (ON) when a character string is input to a character string
memory table using the character string input function of the NT31/NT31C.
After notification to the host, it is automatically returned to "0" (OFF).
At the same time, the number of the character string memory table to which the
input was made is notified to the "content update memory table" word.
- Printer operating status (bit 7)
This bit is set to "1" (ON) when a printer connected to the NT31/NT31C is print-
ing due to touch switch operation at the NT31/NT31C or an instruction from the
host. On completion of printing, it returns to "0" (OFF). It is also returned to "0"
(OFF) even while printing is in progress if the NT31/NT31C displays the Sys-
tem Menu or an error screen.
The NT31/NT31C can print the following data in the RUN mode.
- The currently displayed screen image (by touch switch operation, or opera-
tion of the "screen printing" bit of the PT status control bits)
- Display history record data (by pressing the "Print Screen" touch switch
when screen number 9001 or 9002 is displayed)
- Backlight status (bit 6)
The backlight status of the NT31/NT31C is notified as follows.
@ 1 (ON): Backlight off
@ 0 (OFF): Backlight lit (flashing)
However, this bit is returned to "0" (OFF) when the NT31/NT31C displays the
System Menu or an error screen.
Section 7-2