PVLV time settings

Use the
Time configuration
 tab on the
PVLV Properties
 dialog box to configure time settings for Process Valve (PVLV) instructions.
To configure time settings for PVLV instructions
  1. On the instruction in the routine, perform one of these actions:
    • On the Ladder or FBD instruction, select .
    • In the Structured Text editor, right-click the tag name and select
      Configure <tag name>
      .
  2. Under the
    Advanced
    tab, select
    Time configuration
    .
  3. Configure these settings:
    • Delay to echo back of [Position 1] / [Position 2] when in virtual
      . Enter the duration (sec) to show the valve moving between positions when using virtual mode. This delay is also used when the valve does not have or is not using position feedback.
      Use the
      HMI > Command configuration
       tab to define labels for positions 1 and 2.
    • Time after position output triggered with no motion before full stall status
      . Enter the time (sec) to allow feedback to show the valve has moved from its initial position after a command. If feedback does not arrive in time, the instruction reports a
      Full stall
       fault.
    • Time after position output triggered to reach target position before transit stall status
      . Enter the duration (sec) to allow feedback to show the valve has reached the target position after a command. If feedback does not arrive in time, the instruction reports a
      Transit stall
       fault.
    • Time delay before initially [Position 1] valve
      . Enter the duration (sec) to pause, after receiving the command to move the valve to position 1, before triggering the output to move the valve. Use the
      HMI > Command configuration
       tab to define labels for positions 1 and 2.
    • Time delay before initially [Position 2] valve
      . Enter the duration (sec) to pause, after receiving the command to move the valve to position 2, before triggering the output to move the valve. Use the
      HMI > Command configuration
       tab to define labels for positions 1 and 2.
    • Time to pulse outputs (0 = outputs maintained on)
      . Enter the duration (sec) to pulse the valve outputs. Use this configuration when the valve actuator latches in the signals to move. To maintain the valve outputs when the valve actuator does not latch the signals, enter 0.
    • Time to [Position 1] when pulsing valve
      . Enter the duration (sec) to command the valve to Position 1 when valve pulsing is selected. Use the
      HMI > Command configuration
       tab to define labels for positions 1 and 2.
    • Time to [Position 2] when pulsing valve
      . Enter the duration (sec) to command the valve to Position 2 when selecting valve pulsing. Use the
      HMI > Command configuration
       tab to define labels for positions 1 and 2.
    • Time after trip output triggered to reach trip position before trip fail status
      . Enter the duration (sec) to allow feedback to show the valve has reached the trip position. If feedback does not arrive in time, the instruction reports a
      Trip fail
       fault.
    • Time to sound audible after position command before triggering position output
      . Enter the duration (sec) to sound an audible notification after receiving a position command before triggering outputs to move the valve.
  4. When online with the controller, monitor the
    Device state
     and
    Device issues
     indicators at the bottom left of the dialog box:
    • Device state
      . Displays the current device state, such as
      Pulse continuously
       or
      Out of service
      .
    • Device issues
      . Displays fault conditions, such as
      Feedback fault
       or
      Transit stall
      .
  5. Select
    Apply
    .
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