Chris Morse from Honeywell (Chemical) then discoursed on the application of ISA88 in a real application for a polyethylene production facility.
Unfortunately, Chris' presentation is very graphics heavy, and I can't reproduce most of his slides here...you'll have to wait until the paper is posted on ControlGlobal.com with the rest of the WBF library of papers to see all of it.
The plant user requirements were:
Clear view of planned production
Traceability from finished product back
Management of raw materials
Planning - what is required?
Planning - are they available?
Management of recipe parameters
Master parameter sets for each grade
Easy view & maintenance of parameter sets
Robustness
High controller/HMI level availability
Always possible to change product
Automation
Maximum practical level of automation
Ergonomic operator interaction for manual tasks
Automation of transitions for minimum offspec
S88 was applied to:
Physical model
Procedural model
Recipe parameters
Reporting tools
S88 not applicable in:
“Units” with no process actions
Soft boundaries between batches
Time/flow based offsets
S88 Benefits
Communication via S88 vocabulary and concepts
Use of S88 based batch automation software
Rapid system development
User acceptance of HMI
Maintainable by local resource
Controller level implementation
Batch traceability/genealogy
Minimum customization
