Time needed for Transfer to target

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1

Hi all

We have been working with an X90Mobile for some time now and are generally very happy with it.

What surprises us, however, is the time that the “transfer to target” takes. Normally it takes about 2 minutes to transfer the project, even if only small things have been adjusted.

Is this normal? Or have we missed some settings?

Thanks!

2

Hi Robert,

One big factor that determines how long a project transfer takes is CPU load. This is because the transfer happens during the idle time in which tasks aren’t running. If you have a high CPU load, the transfer takes more time to complete. This is something I’ve seen happen more often in X90 PLCs (compared to other PLCs) because they require additional CPU time to process the onboard I/O.

A couple of ideas to decrease CPU load:

  • Check your Software Configuration and move less critical programs to slower task classes
  • Increase the cycle time of less critical task classes
  • (Unique to the X90) offload the onboard I/O processing to the second CPU core - but note the effects here.
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