adccommunitymod (AutomationDirect) asked a question.

CLICK PLC - On Delay vs Off Delay Timer

Created Date: November 28,2014

Created By: GoScottyGo

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I have a simple project using one photo eye and two air cylinders. When the photo eye is made the first time, air cylinder #1 energizes immediately with an off-delay timer. It will remain energized until air cylinder #2 resets. This is exactly what I want. When the photo eye is made the second time, air cylinder #2 energizes immediately with another off-delay timer. It then resets. What I want is to have a 2 second delay from the time the photo eye is made until AC #2 energizes. For giggles, I increased the time for off-delay timer. I got exactly what I expected, energized immediately with a longer stroke time. I then changed this to an on-delay timer. Now, air cylinder #1 continues to function properly and air cylinder #2 doesn’t function at all. Not sure what I’m doing wrong. Any and all help will be appreciated!


  • adccommunitymod (AutomationDirect)

    Created Date: December 02,2014

    Created by: LWgreys

    If this is a sequence of events, then you mite have a look at the DRUM function.

  • adccommunitymod (AutomationDirect)

    Created Date: December 03,2014

    Created by: milldrone

    GoScottyGo,

    Give this a try.

  • adccommunitymod (AutomationDirect)

    Created Date: December 03,2014

    Created by: GoScottyGo

    Thanks for the help!

    Thanks for the help!

  • adccommunitymod (AutomationDirect)

    Created Date: November 28,2014

    Created by: GoScottyGo

    I have a simple project using one photo eye and two air cylinders. When the photo eye is made the first time, air cylinder #1 energizes immediately with an off-delay timer. It will remain energized until air cylinder #2 resets. This is exactly what I want. When the photo eye is made the second time, air cylinder #2 energizes immediately with another off-delay timer. It then resets. What I want is to have a 2 second delay from the time the photo eye is made until AC #2 energizes. For giggles, I increased the time for off-delay timer. I got exactly what I expected, energized immediately with a longer stroke time. I then changed this to an on-delay timer. Now, air cylinder #1 continues to function properly and air cylinder #2 doesn’t function at all. Not sure what I’m doing wrong. Any and all help will be appreciated!

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