Developing an integrated tracking and control system for a new drug manufacturing plant.

Developing an integrated tracking and control system for a new drug manufacturing plant.
Background

A major pharmaceutical company built a facility in Research Triangle Park, NC to manufacture and package a new cancer drug. The drug is produced from a highly potent compound on an aseptic filling line using isolator technology. Avid Solutions was given the job of implementing a control system to track and coordinate all the equipment for component preparation, formulation, filling and packaging plus the building’s HVAC and utility systems. From user specifications to the coding, configuration and documentation, Avid was responsible for developing a control system that was functional, operator-friendly and FDA-compliant.

Application

To meet all these objectives, Avid engineers chose a control platform based on programmable logic controllers (PLCs) from Allen-Bradley and supervisory control software from Invensys Wonderware. The system was equipped with a redundant PLC and HMI network as well as redundant communications.

Using the ISPE’s Good Automated Manufacturing Practices, the control system was interfaced to all the utilities, including water for injection, purified water and steam plus the plant’s seven air handling units using over 1,500 inputs and outputs (I/O). For the filling lines, the I/O count topped 2,400. These data points are used to coordinate the operations of more than 40 independent machines, including filtration units, part washers, autoclaves and fiIlers built by several different OEMs. Automatic clean-in-place and steam-in-place functions maintain the sterility required for pharmaceutical applications.

Avid’s I/O network provides a variety of supervisory functions from the correct sequence of operations and end-of-run reporting to equipment status, raw material tracking and electronic cleaning logs. A manufacturing execution system (MES) was implemented to translate process orders into specific material tracking and batch data required by the control system and operators. The MES was designed per the S88 model that governs the procedures, operations, phases, and equipment allocation in the PLCs.

The MES manages process recipes needed by the OEM equipment and records all details of each recipe transaction. It also collects status information from the compounding, fi ling, and packaging operations such as “ready for compounding”, “compounding” and “compounding complete”. Barcode scanners and portable computer terminals are used to manually track the assets required for the batch process – vials, caps, stoppers, trays, etc. The MES uses the inputs to generate an audit trail for documenting cleanliness, sterility, material tracking and lot genealogy for every step of the production process. All operator functions are regulated with ID’s and passwords that can be entered at any operator terminal anywhere in the control system.

Results

The solution Avid developed coordinated every step of the production process and allowed operators to interact with every machine through a single, unified interface. Batch data is automatically archived to document how much of which products were produced when. The facility meets the FDA’s 21 CFR part 11 electronic records requirements for the current product line-up and offers flexibility to accommodate future products.

Applications
  • Building Automation
  • CIP/SIP Formulation
  • Filling Material
  • Tracking Packaging
  • Production
  • Operations Control
  • Test Documents
Technologies
  • Bar Code Scanners
  • Batch Reporting
  • ControlLogix 5000
  • DeviceNet EtherNet
  • FactoryTalk View
  • Mobile HMI’s
  • Panelview Plus
  • PROFIBUS
  • SAP Integration
  • Wireless Network
  • WonderWare

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