secound puls

[Hojland]

I need a second puls to count time. How do i make S:4 in to a puls every secound. ML1100

 

[MichaelG]

I need a second puls to count time. How do i make S:4 in to a puls every secound. ML1100

S:4/10 is not every second = 1.024 seconds See Appendix system status file 1763-rm001

Look at the RTC

What time are you counting - minutes? hours? days?

What is the largest number you are counting to? eg Hours run for the next 5 years or 24 * 10 days in minutes (14400 minutes)

What accuracy are you after? - 0.1 of a second every 24 hours or is it 1 hour +/- 30 seconds

 

[Bob O]

Going from memory here and it isn't what it use to be but I think the RTC increments every two seconds. I think this has been discussed on the forum.

here is a link...http://www.plctalk.net/qanda/showthread.php?t=39986&page=3

Hope this helps