sjrkjng_09

Hi,

i have 3 pumps.save the runtime of each pump to planned maintenance.
help me ,

What you need is the RunTimeMeter (RTM).
Here is a visual clue how to find it:
https://support.industry.siemens.com/tf/ww/en/posts/145356/

Please feel welcome to return if you have a specific difficulty.
w

 After how many minutes does a pump need a service?

sjrkjng_09

Thanks

But it save by hours,i want save by min,i used T_ADD but it don't run correct

 It would be interesting to see the code for what you talk about. If you share the code we might assist you to make it work.

Other design ideas..
Use a time accumulator :: Retentive Timer (TONR).
The time value that it can store can be up to T#24d_20h_31m_23s_647ms.
Careful - A timer runs only while being lower than the preset time (PT).

Alternatively you can have the TONR trigger a (DINT / INT) ADD instruction.

What are your thoughts?
w