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.
