Timer limits

[Mikek]

Good Evening.
I thought I had it well in hand, but,No.
I am working on a project for waste sand removal that will require 3 separate conveyors to run at intervals assigned individually to each conveyor.
The operator is to set the interval for each based on the waste load. I was hoping to give them a range of 1 minute to 60 minutes. I am using a DL06 and an EA9 HMI. Writing to the V of a TMRA the longest interval I can obtain is around 16.6 minutes. What am I missing or do I need different hardware and software?

Thank you.

[Mike Nash]

I figured someone would have replied by now, but I guess not.

If you don't need better than 1 minute increments, you can set a timer to 600 (60.0 seconds) and start it at the beginning of the cycle, then use a counter to count the minutes as it resets itself. With a bit of work you could get the finer precision by starting a second timer when the counter preset is reached to get the additional seconds. I'm sure there are lots of other ways (real time clock) but nothing is coming to mind.

Or you could use a BRX plc, with free software and have a real bounty of additional features and ease of use. I used to love the D0-06, but now I just kind of still like it as a fond memory.

[Garyhlucas]

Yep,
A counter with a timer called Clock can give you seconds, minutes, hours, days, weeks, months, or even years as needed.

[Mikek]

Worked great Mr. Nash.
Thank you.