PLLS demand parameters

Use the
Demand
tab on the
PLLS Properties
 dialog box to monitor and modify demand parameters for Process Lead Lag Standby Motor Group (PLLS) instructions.
To monitor and modify demand parameters for PLLS 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
    General
    tab, select
    Demand
    .
  3. Modify these parameters:
    • Number of motors to run
      . When online with the controller, enter the number of motors in the group to run. This sets the Operator demand and takes effect immediately when you select another setting on the tab or select
      Apply
      . If the Cfg_CnfrmReqd parameter equals 1, a confirmation message appears that asks you to confirm the updated setting. If the setting requires a signature, this will enforce security from the HMI and disable the setting from the Logix Designer dialog.
    • Demand Min
      . Enter the minimum number of motors in the group that can run.
    • Demand Max
      . Enter the maximum number of motors in the group that can run.
  4. Monitor these parameters:
    • Program, External
      , and
      Override
      demand. The current demand settings for each command source.
    • Number of motors requested to run
      . The value in the bottom box displays the current demand.
  5. 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:
      • None
      • Stopped
      • Running
      • Stopping
      • Decreasing
      • Increasing
    • Device issues
      . Displays fault conditions:
      • None
      • Configuration error
      • Fail to start
      • Fail to stop
  6. Select
    Apply
    .
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