RandomCST

MrPLC Member
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Everything posted by RandomCST

  1. Has anyone used 2 Keyence PZ series or similar retroreflective sensors in parallel to detect on the closest distance of irregular shaped objects? It should work if my sensor-fu is correct, but in actual use, has anyone had experience with it, and are there any 'gotchas' to watch out for?
  2. ProfiBus Noise

    On one of our installations we have a noise issue with a long segment of profibus.  Will installing snap-on ferrite cores help, hurt or make no difference.  I've heard both.  One side says proper grounding is more important and that the beads will round off the leading and trailing edges.  The other side says the beads are always helpful in noisy environments.
  3. ProfiBus Noise

    RS-485.  Purple cable.
  4. Dematic PTL

    For the Dematic PTL (Push To Light) systems, does anyone have any information on the protocol used.  I'm assuming it's RS-485 based since the buttons use MAX1487 drivers. What I'm looking for is if anyone has a starting place to look at the handshaking or messaging.