Function block's operation modifying method for use in process control system, involves storing function block in memory of machine, and storing modifiable attribute associated with base function block in memory

摘要

The method involves storing a function block in a memory e.g. RAM, of a machine e.g. single processor personal computer (PC). A modifiable attribute associated with a base function block is stored in the memory, where the modifiable attribute is set to a value to cause the machine to instantiate a dynamic modifier function block in the memory or another value to cause the machine to delete the dynamic modifier function block from the memory. An output signal is provided to one of the multiplicity of communicatively coupled function block. An independent claim is also included for a function block stored on a machine readable medium.