📋 Case Study
Pharmaceutical Sterile Fill Line Batch Control Upgrade
Legacy DCS lacked ISA-88 compliance; audit trails incomplete and recipe changes required manual revalidation
🏗️ Project Overview
GMP-compliant aseptic fill line for biologics at FDA-inspected facility
🎯 Challenge
Legacy DCS lacked ISA-88 compliance; audit trails incomplete and recipe changes required manual revalidation
🔧 Design Approach
Modular batch control architecture using Rockwell Logix 5000 with S88-compliant recipe management and electronic signature integration
📐 Design Diagram
AI-generated project design illustration
📐 Key Calculations
Recipe Validation Time Reduction
(Old_Hours − New_Hours)/Old_Hours × 100
Result: 72%
Reduced revalidation burden per change
Audit Trail Completeness
Validated Events / Total Events × 100
Result: 100%
Meets 21 CFR Part 11 requirements
📊 Results
FDA inspection passed with zero 483 observations; changeover time reduced from 4.5 to 1.2 hours💡 Lessons Learned
- •ISA-88 modular design enables scalable validation
- •Time-synchronized logging must be hardware-enforced
- •Electronic signatures require PKI infrastructure
✅ Key Takeaways
- 1ISA-88 modular design enables scalable validation
- 2Time-synchronized logging must be hardware-enforced
- 3Electronic signatures require PKI infrastructure
📐 Prerequisites
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🔗 Engineering Applications
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