Statistical Data Block

Purpose

The Statistical Data (SD) block collects and performs statistical calculations on data.

Features

The Statistical Data block:

• Is a statistical block.
• Can be used as a stand-alone block.
• Can only be followed by a Statistical Control block, if appropriate.
• Receives data from Analog Input, Analog Output, Analog Alarm, and Calculation blocks through the Input field, not from a previous block's Next Block field.
• Supports from 12 to 50 groups and from 1 to 25 observations per group.
• Performs alarming and charting on control and warning limits.
• Provides out of process control alarms.
• Operates in Automatic mode by accepting automatic updates.
• Operates in Manual mode by accepting manual updates from operators or from Easy Database Access programs.
• Can be used in a chain with exception-based processing if you do not enter a time in the Wait Time field.

See Also

Typical Uses

Fields