Does a PID parameter I_HOLD exist?

Does a PID parameter I_HOLD exist to stop integration or similar? Cannot find in PID module in v14 BOL. 

• Control
• DeltaV #DCS
• PID
• DeltaV

Eddie Villarreal

• 19 Jan 2026 4:47 PM
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3 Replies

• Andre Dicaire

  

  • 19 Jan 2026 6:10 PM

  No, it does not have such a parameter.
  
  It would be useful if you could explain your application, control problem and elaborate on what you are needing to do. I_HOLD is not a DeltaV Parameter, so this comes from another system you are familiar with. Suspending Integral action is typically done in an Override or constraint application with a control selector that allows a single control element to be overridden to prevent a secondary variable from exceeding a set limit or constraint. i.e. a Flow valve is constrained when a Temperature constraint is reached. A Control Select allows for a dynamic application of the constraint rather than a fixed Out _limit of the flow controller. This allows maximum flow of process as long as temperature is below constraint.
  
  Is this your application? Hmm. I don't know. Anyway, the integral tracking occurs via the BKCAL_IN status of the PID block, with a status of GoodCascadeNotSelected. This would typically come from the downstream CNTRL_SEL block when it has selected another source block to drive the output. The PID block maintains proportional movement that responds to the current PV-SP error. If the PID block Error drives its output below (or above) the selected input, the selector block selects this PID and Integral action is enabled, while the other PID blocks are not selected.
  
  The Status field is described in BOL and is made up of the Status, Substatus and Limit sections. The Substatus is defined by the middle 4 bits of the Status Byte, with Status being the two most significant bits and limit being the two lowest bits.
  
  Depending on your application, DeltaV takes care of this with normal Back Calculation connections of standard blocks.

  Andre Dicaire

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• gamella

  

  • 20 Jan 2026 7:12 AM

  A parameter to stop integral is not provided.
  DeltaV PID block provides features to to limit the Integrat action. You can check for RESET LIMITING and Dynamic Reset Limit in DeltaV books online for details.

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• Matt Stoner

  

  • 20 Jan 2026 1:53 PM

  There is only an IDEADBAND parameter that will turn off integration when within this parameter value from SP.

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