I x .DF1Master.PollGroupSizeError

DF1 Master Poll Group Size Error

Allen-Bradley · Compact 5000 I/O Serial Module

What does I x .DF1Master.PollGroupSizeError mean?

This boolean tag for DF1 Master module 'x' indicates a configuration error where the defined Normal Poll Group size exceeds the maximum allowable number of nodes for normal polling. A value of 1 signifies that the polling configuration is invalid and cannot be executed as specified, leading to polling failures for normal nodes.

Common Causes

  • The number of nodes configured in the `Ox.DF1Master.NormalPollNode` array is greater than the value specified in `Ox.DF1Master.MaxNormalPollNode`.
  • An attempt was made to add more nodes to the normal polling list than the system's current configuration or hardware supports for module 'x'.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Adjust the size of the `Ox.DF1Master.NormalPollNode` array in the module definition within Logix Designer, ensuring it is less than or equal to the value of `Ox.DF1Master.MaxNormalPollNode`.

  2. 2

    If more normal poll nodes are required, review the `Ox.DF1Master.MaxNormalPollNode` parameter. If system hardware for module 'x' supports it, increase its value in the module configuration, then reconfigure the polling list.

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Verified technical data. Last updated: March 2026

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Source: Allen-Bradley Compact 5000 I/O Serial Module