adccommunitymod (AutomationDirect) asked a question.

CTRINT present bit?

Created Date: March 09,2011

Created By: cryomark

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Where (address-bit) do I find the CPU confirmation that a CTRINT is installed? The manual says the CPU registers its presence automatically. Since we'll be using the CTRINT in only some of the machines, I want the PLC /HMI to ignore the relevant code if a CTRINT is not installed.


  • adccommunitymod (AutomationDirect)

    Created Date: March 09,2011

    Created by: bcarlton

    If you have a free input point on the CTRINT the set it for a standard input with filtering. Hard wire a jumper to the ON voltage. Check for this in the program. If it is not there then the CTRINT isn't there.

    But a major problem with leaving off the CTRINT is if automatic addressing of the I/O is used. If you do not have anything in the slot then X's and Y's will be shifted down.If instead of leaving the slot empty you install a D2-08CDR then the I/O mapping will be preserved. Jusst leave the one input open for ID purposes.

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  • adccommunitymod (AutomationDirect)

    Created Date: March 09,2011

    Created by: cryomark

    Where (address-bit) do I find the CPU confirmation that a CTRINT is installed?

    The manual says the CPU registers its presence automatically. Since we'll be using the CTRINT in only some of the machines, I want the PLC /HMI to ignore the relevant code if a CTRINT is not installed.