Lynn Craig, one of the Process Automation Hall of Fame inductees, and one of ISA's 50 greatest minds in automation, wants us to think about S88 in a different way.
What is S88 all about?
Basic control sets equipment to a desired state. That kind of thing has been common for a long time. S** doesn't define basic control- it organizes it so it can be commanded. It accepts what has been there for many years.
So basic control can be commanded by procedures. These procedures sequence process staes to do a task.
S88.01 is really about procedures and coordination, because I can't think of anything worse than having a bunch of procedures running all over each other.
S88 defines concepts and structures, and provides abstract models and terminology-- which is certainly anathema to engineers. It aids definition of precedural control functionality, and links with Manufacturing Operations Management.
I hate the term, "plant floor," he said.
S88 focuses on a level between Manufacturing Opeations Management and basic control...it fits into that window.
Who was S88 written for?
It was intended to be an engineering tool. It is abstract enough to fit any process and any control system. It is a conceptual structure that fits most batch manufactruing with a set of terms taht allows engineers to communicate and it does that well.
Bht there is a fequently overlooked byproduct. Suince it describes how a process shoud run, it has obvious operational value. It focuses on physical manufacturing operations.
Now, there's the word to use instead of "plant floor"-- Physical Manufacturing Operations.
It is in effect an operational model for that business level.
Businesses have multiple levels-- all with different responsibilities.
Top: CEO level- use money to make more money
Enterprise level- provide services and activities to help make money
- accounting
- marketing
- sales
- etc.