Engineering for new systems, extensions and modernization
Architecture
- System sizing
- Controller and I/O selection
- Server and client architecture
- Network topology
- Redundancy concept
- Virtual infrastructure
Application
- Control modules
- Regulatory control
- Sequences
- Interlocks and permissives
- Alarm handling
- Operator graphics
Integration
- Fieldbus
- Package units
- Safety interfaces
- Drives
- Historians
- Plant information systems
Lifecycle
- Version and support review
- Backup and recovery
- Obsolescence assessment
- Migration planning
- Capacity review
- Final system records
Modernization without losing proven plant knowledge
A control system migration should protect the operating knowledge contained in proven logic, graphics, alarm settings and procedures while addressing obsolete components and unsupported software. We assess the installed base and dependencies before defining the target platform, migration sequence, test strategy and cutover plan. Phased modernization can renew operator stations, servers, networks, controllers or I/O according to risk and shutdown opportunities. Each stage includes defined verification and recovery considerations.
Architecture decisions that support operation
Availability
Redundancy and failover are selected according to plant criticality and tested as complete functions.
Performance
Controller loading, network traffic, server resources and operator response are considered together.
Security
Segmentation, user management, secure access, backup and supported updates form part of the system design.
Maintainability
Standard modules, diagnostics and controlled documentation reduce future engineering effort.
Typical project deliverables
- System architecture specification
- Hardware and software inventory
- Functional design specification
- I/O and communication lists
- Application software
- Operator display standard
- Alarm and interlock records
- Factory test procedure
- Migration and cutover plan
- Backup and recovery procedure
- Site test records
- Final configuration documentation