Purpose
The On-Off Control (BB) block opens and closes up to two digital outputs based upon an incoming analog value or an operator input.
Features
The On-Off Control block:
- Is an optional control block.
- Is a secondary block.
- Must receive input from an upstream Analog Input or Analog Alarm block.
- Controls one or two digital outputs automatically, when operated in Automatic mode.
- Allows an operator to open and close the high and low contacts from the iFIX WorkSpace, when operated in Manual mode.
- Can be used in a chain with exception-based or time-based processing.
