Omron NT31 Operation Manuals page 288

Areas for Control/Notification
Reference: The memory table number is notified only when the memory table contents are
15
["Content update memory table" and "PT status" of the PT status notify area]
15 14 13 12 11 10 9
Word
m
m + 1 – 0
BCD
0001 to 1999
changed by operation at the NT31/NT31C.
S PT status notify bits
The PT status notify bits have the functions shown below.
14 13 12 11 10 9 8
0 0 0
- PT operation status (bit 15)
When the NT31/NT31C is in the RUN mode, this bit is set to "1". In other
modes, and when the System Menu screen is displayed, it is set to "0" (OFF).
When this bit is set to "0" (OFF), the allocated bits and words are neither read
or written.
During the RUN mode, "1" (ON) is periodically written to this bit. In order to
check whether the NT31/NT31C is operating normally or not, write "0" (OFF)
to this bit, then read it 30 seconds later. If the setting for the bit is "1" (ON), the
NT31/NT31C is judged to be running, and if it is "0" (OFF), the NT31/NT31C is
judged to be stopped.
Note To ensure system safety, be sure to periodically read the PT operating status bit
from the host in order to ensure that the PT is always operating normally.
8 7
Screen number (4-digit BCD or hexadecimal value)
– – – 0 0 –
Numeral setting strobe flag
Hexadecimal
0000 to 07CF
H H
7 6 5 4 3 2 1
0 0
6 5 4 3 2 1
– – – – 0 0 0
Numbers
Memory table numbers 0 to 1999
0 Bit
0
Notified Information
PT operation status
15
Battery status
13
Screen switch strobe
12
Numeral setting strobe flag
11
Character string setting strobe flag
10
Printer operating status
7
6 Backlight status
grobal window status
5
Local window1 status
4
Local window2 status
3
Section 7-2
0 Bit
Content update
memory table
PT status
1 (ON) 0 (OFF)
Run Stop
Low Normal
Printing Stopped
Off Lit/Flashing
Open Close
Open Close
Open Close
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