Omron NT631 Series Reference Manual page 58

Areas for Control/Notification
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When Data is Written From The PT
When the screen display has been switched by operation at the PT, the new
screen number is written as a 4-digit BCD or hexadecimal value into the screen
switch setting word by the PT. At the same time, the ON status is also notified to
the screen switch strobe flag of the PT status word of the PT status notify area by
the PT (after notification, the OFF status is re-established) (page 295). Whether
the data is written in BCD or hexadecimal format is determined by the setting for
numeral storage type in the PT configuration settings made at the Support Tool.
PT
Currently
displayed screen
Screen Switch Setting Word of The PT Status Control Area and PT Status
Word of The PT Status Notify Area
PT status control area
15 14 13 12 11 10 9
Word
Screen number (4-digit BCD or hexadecimal)
n
PT status notify area
15 14 13 12 11 10 9
Word
m + 1
– 0 – –
The screen numbers notified are as follows.
BCD Hexadecimal
0000 0000 No-display (screen cleared)
0001 to
0001 to 0F9F Screen numbers 1 to 3,999
3999
9001 2329 Occurrence history screen
9002 232A Frequency history screen
9020 233C Programming Console function screen
9021 233D Device Monitor function:
9022 233E Device Monitor function:
9023 233F Device Monitor function:
9030 2346 Brightness and contrast adjustment screen
PC
PT status control area
← Screen number
Screen switch setting
Copy memory
table setting
PT status control setting
Reserved for system use
PT status notify area
Content update memory table
← Screen switch strobe
PT status
flag
8 7 6 5 4 3 2 1
8 7 6 5 4 3
– 0 0 – – 0 0 0
Screen switch strobe flag
Screen
Registration monitor screen
Continuous monitor screen
Error log screen
Section 2-2
0 Bit
Screen switch setting
2 1 0 Bit
0 0 0
PT status
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