Ns-10 Operator Interface

[BITS N BYTES 66]

Cannot find a system bit $SB or system word $SW in the System Memory area of the NS-10 to indicates that the display area of the touchscreen has been touched. Any ideas would be most welcome!!

[ECSI 17]

If you are using a screensaver then you could monitor $SB11 (Backlight Status) to detect that someone has taken the display out of screensaver mode. Other than that I don't know of any system bit to detect that the display area has been touched while not in screensaver mode.

[Jay Anthony 118]

Tell us a little about why this necessary. Perhaps there is another solution.

[BITS N BYTES 66]

All screen Data entry is all password protected. If there has been no screen activity after 10 minutes I need to disable data entry requiring the password to be re-entered. Got this working using three Project Macros as follows:- Valid password entry turns on screen memory bit $B0. Macro 1] "When a bit changed 1" that "Executes when ON" for $B0 [My password valid flag]. Macro 2] "When a bit changed 2" that "Executes when ON" for $SB5 [system Keypad Entry flag]. Macro 3] "When a value changed 1" for $SW14 [system Minutes and Seconds]. Macro 1 and 2 are identical:- 'At successful password entry $B0 OR Keypad activity $SB5 this macro runs once. 'Add 10 minutes to the current Minute/Second time and store value. 'When the current Minute/Second time reaches this value data entry is locked. 'See project macro "When a value changed 1" for details . 'HMI Minutes and seconds in $SW14 are in BCD $W14=BIN($SW14)+1000; 'Convert Minutes/Seconds from BCD to numeral, add 10 minutes and 00 seconds IF ($W14>=6000) 'If greater than 60 minutes and 00 seconds $W14=$W14-6000; 'Subtract 60 minutes and 00 seconds ENDIF $W14=BCD($W14); 'Convert from numeral back to BCD MACRO 3 'This macro locks data entry when the current Minutes/Seconds equals $W14 '$W14 is written to by project macros "When a bit changed 1" and "When a bit changed 2" IF ($W14==$SW14) 'Current time equals data entry lockout time. $B0=0; 'Lock data entry ENDIF WORKS GREAT, BUT IS THERE AN EASIER WAY! Edited 17 Mar 2006 by BITS N BYTES