Adding - Subtracting Date & Time

Hello:

I'm working in the Connected Component Workbench environment with a Micro820 PLC.

Is there a way to add-subtract date & time values.

Thanks

http://literature.rockwellautomation.com/idc/groups/literature/documents/rm/2080-rm001_-en-e.pdf

If you look under the subtracting instruction - Subtraction subtracts an Integer, Real, or Time value from another Integer, Real or Time value

Regards,

Thanks for the reply but I need to know how many days-hours-minutes there is between 2 date/time ranges: (Example) 10/24/48 -11:56:23 and 12/15/96 - 15:33:55

Did you try? Pg 108 says the SUBTRACT operation 'will' take two TIME values, SUBTRACT, and return a TIME value as the difference.
What is the result of your example?

Yes is does take 2 "TIME" values but will NOT take "DATE" values.

As I said before I need to know the difference(how many days, hours, minutes, seconds, have elapsed) between let's say (10/24/1948 - 11:28:32) and (12/24/2016 - 15:45:53)

Thanks again

I don't have CCW or the Micro820, so im just guessing..
can you take startdate - date(any) to dint and time to dint, combine them and then take stopdate - date(any) to dint and time to dint , combine and finally do the math. Convert dint(any) to date / time?
Just a thought.

kwade, that's an Idea! I will see what I can come up with. Thanks for the input

damica1 said:

kwade, that's an Idea! I will see what I can come up with. Thanks for the input

Click to expand...

You're welcome.

You may have to break apart the result twice, once to calc the DATE portion and then again to calc the TIME portion.
If you are lucky, CCW has something similar to UNIX EPOCH datetime handling. See this for a tool to compare your results.

The manual shows support for LINT (long int) that may be needed in place of DINT in my earlier posts. Cell phone screens are too small.
It also mentions something in the ANY_TO_DATE (pg286) about TIME being added to DATE, so maybe there is some hope for this task.