ISET
The Instrumented Systems Engineering Tool (ISET) is our Windows desktop application that enables end to end functional safety management and systems engineering within a common environment
Benefits
ISET is an engineering tool that significantly lowers the total cost of ownership associated with control and safety systems:
- Reduction in OPEX by taking credit for spurious trips – reduced maintenance hours
- Improved production efficiency by minimising planned shutdown durations – reduced maintenance frequencies
- CAPEX savings by automating the engineering process – reduced engineering hours and system supplier costs
Return On Investment
Conservative return on investment estimate (based on 300 Safety Instrumented Functions):
- 4000 direct hours – annual reduction in maintenance
- 5 days – annual reduction in shutdown duration
- £1,500,000 – one-off reduction in system supplier costs (initial project delivery)
- £300,000 – annual reduction in system supplier costs (assuming 3 x minor mods per year)
- £1,000,000 – one-off reduction in engineering contractor costs (initial project delivery)
- £200,000 – annual reduction in engineering contractor costs (assuming 3 x minor mods per year)
Cost Effective
ISET enables cost effective functional safety management
- Integrated approach – streamlines design interfaces
- Simplified engineering process – reduces reliance on specialist resources
- Live compliance monitoring and reporting – faster decision making and planning
- End to end verification and validation – enforces standard compliance
- Design simulation and automatic build – reduces design and implementation defects
- Evergreen safety requirement specifications – enforces correct management of change
Assures Quality
ISET assures quality and improves process safety
Mitigates Risk
ISET mitigates project delivery risks
- Enhanced collaboration and information management – ensures all stakeholders work with common data
- Design change flexibility – minimises rework
- Auto testing – reduces defects found during commissioning
Key Features
Functional Safety
A complete set of functional safety management tools from hazard identification, IL determination, IL verification through to live reliability monitoring and safety performance management.
Modular
A modular application designed from the end user’s perspective
Auto Generation
Auto generation of application programs and test scripts directly from design specifications (including reverse engineering).
Quality Management
An inherent quality management system that removes all ambiguity between specification and implementation, underpinned by a test-driven development approach.
Integrated Safety Lifecycle
- Each phase of the safety lifecycle can be completed and managed within a common environment
- Integrated approach makes transitioning between phases more efficient and improves quality
- Helps to maintain a clear line of sight from SIF to hazard (a frequent FSA finding)
- Ensures all stakeholders within the end user, engineering contractor, and system supplier can work to a common process and with consistent data
- Significantly streamlines the FSA, auditing, and verification processes
- Combines SRS and design / engineering phases – significant cost savings through auto application program generation and auto testing
Modules
- A complete set of functional safety tools covering the entire lifecycle
- Tolerable risk and risk consequence levels configuration
- Independent protection layers and initiating cause types definition
- PHA, nodes, hazards definitions and reporting – SIF safeguarding allocations (clear line of sight from SIF to hazard)
- IL determination through LOPA or risk graph
- SIS and SIF definitions including fault tree component modelling and architecture constraint assessment
- Failure rate definitions at the component (actual data), component type (generic data), and model (manufacturers data)
- Proof test procedure and step definitions including SIF allocation
- SIF and SIS reports including SRS compilation – alignment with SRS clauses IEC-61511 Edition 2 including application program requirements
- Live reliability and safety performance monitoring – imports data from maintenance systems and operational SIS
- Continuous verification of SRS (demand rates, time in bypass, process safety, and response times) from imported SOEs – automated by Schneider Electric’s SIF Manager product
- Live PFD calculated from spurious trips, proof tests, and failures
- Compute engine and distributions take account of proof test coverage
- Accurate forecast of next planned full proof test and component replacement dates
- C&E Chart definition including rows, columns, links, notes, groups, timers, and SUOs
- Data driven and format agnostic – C&E formatting persisted to database
- C&E logic simulation (either via simulation engine or connection to virtual controller)
- Lifecycle entity linking e.g. SIF linking
- Automatic change tracking and highlighting
- Version control and electronic approval
- Efficient configuration via conventions and wizard
- As building and reverse engineering from softwareAuto generation of IEC-61131-3:2019 compliant logic model and application program
- Auto generation of test cases – can be executed in ISET or external (on target hardware)
- Definition of specialised instrumentation and electrical components (Instruments, F&G devices, valves, actuators, electrical devices, enclosures, cables, and cable cores)
- Preconfigured Range Alarms, Trip Schedule (RATS) and instrument index reports
- Cabling design definition through component hierarchies and component interfaces
- Automatic IS calculations via validation service
- Alarm assessments and associated action tracking – ISET acts as the master alarm database
- POU template allocation (Function Block) – used to auto generate I/O processing logic
- Automatic reverse engineering of range and alarm setpoints from application program
- Loop diagram generation from components and component interfaces
- Definition of specialised hardware components (Backplanes, Controllers, I/O Modules, etc)
- Wiring definition through component hierarchies and component interfaces
- Automatic power and heat calculations via validation service
- Controller simulation (virtual controllers) – supports loading and running of software configurations
- Definition of specialised software components (software, POU, and POU variables)
- IEC-61131-3 compliance achieved through validation service
- Generation of software configuration in PLCopen_tc6_v201, IEC 61131-3 structured test, and ISET structured text formats from POUs and POU variables.
- Import of software configurations in PLCopen_tc6_v201, IEC 61131-3 structured test, and ISET structured text formats
- Compile of software configuration for running in virtual controller
- Software configuration comparison and reporting functionality (auto generation of change summary)
- Test case and test step definition including assignment to POUs (test case) and POU Variables (test step).
- Auto generation of test cases and test steps via selectable options; 100% logical coverage, 100% functional coverage, or regression (based on change summary and IEC-61508 recommendation)
- Automatic run of test case and test steps using virtual controller and simulation environment
- Custom report available for exporting test cases to Schneider Electric’s Safety Validator XML format
- Dynamic Function Block Diagram (rendered from imported or generated application program)
- FBD can be controlled as a formal document
- Predefined E/E/PES change workflow – customisable by stage role allocation (administration module)
- Fully auditable workflow status (each stage tracked – dynamically visualised)
- Workflow linking to components database (actual software components, POUs or POU variables can be linked)
- Supports unlimited attachments and document linking.
- Workscope definition (minor project, major project, TQ and RO) and status tracking
- Interface management via workscope allocation and linking
- Integration with task platform – complexity management introduced through the concept of an engineering process (timeline) updated in real-time
- Safety lifecycle management – including control of FSA process via task management platform
- Control Narrative definition including control schemes, SFCs, and graphics
- Control Scheme Diagram utilised to formalise process control design
- Control scheme diagram database driven via nodes, links and notes (supports POU and POU variable linking)
- SFC and graphics also database driven and supports component linking
- P&ID document definition including P&ID notes
- P&ID navigation linking via lines – lines can be connected via component interfaces
- Definition of specialised line component including generation of a preconfigured line list report
- Linking to any number of components – supports P&ID search and navigation
- Component type definition with references to generic failure data.
- Model library including references to manufacturers failure data, obsolescence status, and ATEX information
- Document type library including mapping to SDRL and CDRL codes
- Asset and system hierarchy definition supporting unlimited sub-systems
- Library for procedures, policies, standards, and guidelines – including document linking
- Locations definition including environmental and hazardous area definitions
- Definition of general documents and components (tagged items for linking with ISET specific components and documents)
- Super user access and user control including role based privilege allocation
- Fine grained privilege definition (create, read, update, and delete operations per module)
- ISET database setup including integration and database server connections
- In built competency assessment as part of role allocations
- Competency assessment (users and roles) integrated with task and performance management platform
- Custom report configurations – ISET’s main method of extensibility in terms exporting into proprietary data formats
- Custom reports developed for Schneider’s SIF Manager and Safety Validator products