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Output signal duration

Vale
Vale ✭
in RAPID Programming
Hello everybody!
I need to set digital outputs after a certain movement (defined with the attribute fine) has been performed, so that the PLC can read them. In practice it happens that sometimes the PLC is able to read the transition, some other times no. 
Anybody has any idea?
Is it possible to set the signal to a value for a certain period of time?

Thank you very much! :)

Comments

  • lemster68
    lemster68 ✭✭✭
    PulseDO is the instruction that you are wanting.  However, I, and some others like to refrain from using that instruction.  I can be problematic.  If this step in your process is that critical, I suggest that you use a handshake.  Turn on your output until the PLC acknowledges receiving it, then turn it off and continue.
    Lee Justice
  • soup
    soup ✭✭✭
    Also check out TriggIO.
  • lemster68
    lemster68 ✭✭✭
    edited October 2018
    Oh, or also setting up a world zone.  Just make sure that you don't pass back through it at the wrong time in your process.  WzHomeJointDef would be more safe.
    Lee Justice

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