mw reset

[srd]

Hi All
         if i have a valve saved to a marker is there away of resetting the value to 0 at a specific time. for example count water usage from april to september and keep the value visible and then reset it the 1st of jan every year. Cheers

[radar17892]

Use the RTC. By comparing the date/time you generate a reset edge like this:

IF (RTC = target time) THEN M01:= true; END_IF

[srd]

my apologies it a mw that i could do with reseting the value to 0 if possible.

[radar17892]

IF (RTC = "target time") THEN
   MW1:= 0; END_IF
To reset the flag word use the RTC including seconds, then the word 1s is written with zero.

[srd]

Can it be written in function block

[radar17892]

Test this Program with UF