OMAC PWG PackSoft Packaging Application Library

1
OMAC PWG PackSoft Packaging Application Library
Gerd Hoppe Corporate Mgr., CTO N.A. Beckhoff g.hop
pe_at_beckhoff.com
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PackSoftCommittee

• Scope of Work
• PackSoft Application Library PackAL
• Objectives
• Benefits

PackSoft Application Library PackAL
PackAL Compliance policy
PackALGood programming practices
Integrate other Pack WG Cs
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PackSoftMembers

• Member Participation Jan. 2003 35 Jan.
  2004 51 Jan. 2005 58
• Balance of Participant Groups
• 2005End Users 15Suppliers 49 OEM 16
  Organizations 13

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PackSoft Scope of Work

• Define an Application Library for Packaging Users
  and OEM
• PackAL Set of common software elements
• builds a standard for programming of commonly
  used functional elements in Packaging
• builds on existing standards wherever possible

• OMAC PWG PackSoft FB Library
• Machine Control Generics
• Machine Organization Generics
• Communication Elementary functions

PLCopen FB for Motion control
PLCopen Extensions for Motion Control
Future useful standards
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PackSoft Application Library

• AL Library FunctionsFunctions
• Packaging Process Elementaries 13
• Communication Elementaries 10
• Machine Behavior (PackML State Model) 1

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PackSoft Application Library

• AL Library Functions

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PackALuses PWG Tag names
Function Block use Tag Names of OMAC PWG can be
used in any language

• Mandatory IO variables and
• optional IO variables
• Use of specific OMAC PWG tag names
• FB can be used and called in any language (LD,
  FBD, SFC, ST, IL of IEC61131, C, etc.)

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PackAL is usable in any language
PackAL is independent of Choice of programming
language

• Mandatory IO variables and
• optional IO variables
• Use of specific OMAC PWG tag names
• FB can be used and called in any language (LD,
  FBD, SFC, ST, IL of IEC61131, C, etc.)

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PackAL is independent of Implementation
PackAL is independent of Implementation
Motion Control
PLC
DRIVE

• PLC Motion Controller based
• PC or PLC based
• Drive based

MC CMD STUB
COMMANDS
STATUS
MC-Loops
PackAL-FB
VELOCITY / Torque
PC / PLC
DRIVE
MC CMD Loops
VELOCITY / Torque
PackAL-FB
PC / PLC
DRIVE
MC CMD STUB
Motion Control
MC-Loops
PackAL-FB
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PackAL is indepentent of Implementation
PackAL is open for Implementation limitations

• Same Look and Feel for functionality
• Data Sizes may differ from implementation on
  small PLC to large PC based system
• Small PLC Data Axis_Ref is BYTE
• PC System Data Axis_Ref is WORD
• Data Sizes must be consistent within one
  Implementation
• -gt Look Feel identical

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PackAL is open for product differentiation
PackAL is open for supplier differentiation

• Same Look and Feel for basic functionality
• Mandatory IO variables and optional IO variables
• B Basic Set
• E Extended Set
• S Supplier specific Set

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PackALExample

• Dancer Control as Pack-specific extension of
  MC_GearIn
• Makes use of generic existing standard FB
  GearIn
• Builds specific function
• Uses Pack-specific tag names

Wind / Unwind FB
Dancer Control
Gear
Gear
Master
Slave
Master
Slave
ratio
g(t
)
ratio
g(t
)
Gear ratio exists as PLCopen MC standard FB
MC_GearIn
P, I, D
PID
PID
P, I, D
Control
Control
Dancer
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PackSoft ALUser Benefits

• User Benefits are
• common Look and Feel in Packaging for Users
• Training efforts better utilized
• Maintenance Troubleshooting easier
• more time to focus on process issues,
• open, user- and vendor- expandable Library to
  allow for differentiation on all sides

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PackSoft ALUser Benefits

• User Benefits are
• common platform-independent Software Elements,
• can be utilized in Controls, Drives, Devices ..
  anywhere
• common device behavior,
• Platform independent software standard PackAL
  defines interfaces behavior, not
  implementations

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PackSoft Objectives 2005

• PackAL V 1.0 published March 29, 2005
• Raise interest for creation of Demo library for
  first field application
• Get experience from first field application
• Move forward to PackAL V 1.0x

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PackSoft Call for action

• Distribute the standard, comments welcome
• USE the standard, lets get user experience!
• Join PackSoft, participate actively!
• Contact g.hoppe_at_beckhoff.com

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