Siemens Question: Prev Cycle Time is 1500 CPU

Hi,

In OB1 there is no Prev Cycle time anymore.
Is there a solution to have something like this ?
Or do I have to substract the previous clock read from the current to achieve this ?

Thanks,
Combo

You need calculate it with calling Runtime or uncheck optimize from OB settings.

https://support.industry.siemens.co...-total-cycle-time-of-a-program?dti=0&lc=en-WW

There is a better way. Check out the RT_INFO instruction. It can be called with a number of different modes, to give you the cycle time for OB1 or the execution time of any other OB, as well as the time spent on communications processing.

Look under Extended Instructions-> Diagnostics