SP76.51 Symbol Library: “The NeSSI Component Info-Net™”

Steve Doe, Parker Hannifin

Topics

• ANSI/ISA-76.00.02-2002 Refresher & Reaffirmation

• SP76.51 Origin & Charter• Expanded Charter- “Component InfoNet™”

–Port Designators –Communications Appendix

• Provide an agreed-upon, understandable & accessible information database that benefits an industry-wide base of users & suppliers (SHS stakeholders)

• Leave room beyond the agreed-upon elements of the standard for manufacturers to compete in the marketplace

Refresher: Why Bother with a Standards At All?

Swagelok Circor Parker

A good example of a standard that achieves the objectives

Refresher: The Current Standard

• ANSI/ISA reaffirmation of the Standard is due in 2007

Reaffirmation of the Current Standard

• Parker proposes inclusion of the clocking pin as an option into the reaffirmed standard

• Experience has taught us that perhaps the much-debated alignment pin was a good idea

Implementation of the clocking pin on an optional basis allows manufacturers to minimize the cost

Reaffirmation of the Current Standard

Provides a fail-safe method to insure proper field orientation of an operational device to its associated substrate flow path

Improper field orientation of operational devices can have detrimental effects on a system's functionality, with potentially hazardous results.

SP76.51 Standards Committee Origin

• Supplement to the existingISA-5.1-1085(R1992) to an all-inclusive library of symbols for devices used specifically in process analytical schematics

• Because…

SP76.51 Standards Committee Origin

…variety isn’t the spice of life when it comes to

schematics!P

60 micronFast Loop

filter

60 micronFast Loop

filter

25 micronfilter25 micron

filter

A

R-MAX R-2

MFIPressure

Gauge0-100 psi

Rotameter1-3 ml/min

SP76.51 Standard Committee Current Charter

• Library is poised for committee member review and comment

• Committee membership is open to any interested stakeholder; contact David Lewko if you’re interested in participating(lewkod@bantrel.com)

SP76.51 Standard Committee Current Charter

Each symbol becomes the basis for an agreed upon description of a functional component…

SP76.51 Standard Committee Expanded Charter

…and provides a reference point for its physical relationship within a system that can now self-describe

SP76.51 Standard Committee Expanded Charter1. Establish a “porting legend”

for all functional devices

• SP76 allows device makers to access any combination of the (5) defined flow passages• Simple 2-port devices are intuitive• 3-port devices may not be quite

so intuitive• Microanalytical devices yet to be developed

may add a whole new dimension of creative flow passage access

SP76.51 Standard Committee Expanded Charter

• Conventional wisdom leads all three

manufacturers to define the center port as inlet and offset as outlet

• Providing end users with field plug and play freedom!

Parker SwagelokCircor

• Three manufacturers’ products

• For example, one schematic defining a simple 2-way

valve

SP76.51 Standard Committee Expanded Charter

However, what if a competitive performance advantage can be achieved by porting differently?

Manufacturer “X”

SP76.51 Standard Committee Expanded Charter

Both SP76 Compliant, but is it still “Plug & Play” ?

End users are entitled to know how devices within a symbol definition are ported

• Last committee meeting was held at ISA Expo last October

• Attendees agreed in principal to include a “port legend” template to define flow passage requirements for each symbol

SP76.51 Standard Committee Expanded Charter

SP76.51 Standard Committee Expanded Charter

• Such information forms the basis for building a self-describing system

• The template can also be appended to provide operational and connectivity information relative to networked and non-networked devices, including electrical and flow net listing

CIA (CAN in Automation)

ANSI-ISA SP76.51

Fieldbus

Standards Agency Hosting Communication Profile

SP76.51 Standard Committee Expanded Charter

Summary• A simple standard

symbolic description…

Summary• A simple standard

symbolic definition…

• Bolstered with a standard template for describing physical & communication connectivity details….

Summary

• Becomes the building block for a self describing system!

Thank You!

Committee membership is open to any interested stakeholder; contact David

Lewko if you’re interested in participating (lewkod@bantrel.com)