Statistical Control Block

Purpose

The Statistical Control (SC) block lets you adjust a value from another block by calculating the average offset and the rate of deviation from the average XBARBAR.

Features

The Statistical Control block:

  • Is a statistical block.
  • Is a secondary block that can only be preceded by a Statistical Data block.
  • Uses an approximate curve to determine slope and deviation values.
  • Only calculates an adjustment value if the upstream Statistical Data block generates an alarm; the Statistical Control block bases its adjustment on the alarm it receives.
  • Is disabled if the alarms on the Statistical Data block are disabled.
  • Operates in Automatic mode by automatically passing the adjustment value to the block specified in the Add To field.
  • Operates in Manual mode by calculating the adjustment value, but not passing it to another block.
  • Passes its adjustment to other blocks such as the Analog Output, PID, and Ramp blocks.

 

Typical Uses

Fields

Important Notice

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