CORYS’ Dynamic Simulation Platform

INDISS PLUS® is the latest generation dynamic simulation platform developed by CORYS. Based on First Principles of Chemical Engineering, INDISS PLUS® models accurately match process behavior at normal operations or during transient periods, whether the models are part of a dynamic study or incorporated into an Operator Training Simulator (OTS) solution.

Thermodynamics Packages

Integration of Cape-Open thermodynamics package into INDISS PLUS® for use in Simulation

The application has a rich library of Thermodynamics PackagesPure Components, and Unit Operation Modules.  However, if 3rd party proprietary components, thermodynamics packages or chemical reactor models are required they can be seamlessly integrated within the INDISS PLUS® platform by taking advantage of the multi-layer component architecture.

Process Diagram Builder

Powerful interactive windows interface to build process flowsheets

INDISS PLUS® incorporates a Process Diagram Builder (based on Microsoft .NET Framework) to enable users to interactively build their flowsheets using the menus, dropdowns or drag and drop capabilities

Unit Operation Faceplates

Feaceplates match real-unit operation environment

Unit Operation detail can easily be specified through each Unit Operation’s Faceplate by filling in the appropriate information in the form of a datasheet

New and Improved Architecture

CORYS has new features available as a result of INDISS PLUS® architecture updates, including:

  • Custom ribbon toolbar included in the model builder, as well as instructor and field operator stations
  • Memory improvements to improve speed of simulation
  • Advanced multi-thread execution capability that allows for parallel processing on computer hardware.
  • Web-based capability to allow for remote server operation of simulations via thin clients over intranets and the Internet for Software as a Service (SaaS)
  • Enhanced open environment for easier integration to 3rd party packages such as CAPE-OPEN.
  • New DCS operator console emulations.
  • Advanced trending and historization capability
Advanced Trending and Historization capability with Indiss Plus®

Instructor Viewer Console

From the INDISS PLUS® Viewer Console, the Instructor can call up displays, load models, insert malfunctions, and perform other tasks during a training session.  The interface is based on plant and simulator specific graphic displays.  Through these displays, the User can monitor the status of the models and directly control selected malfunctions.  The Instructor will also use the instructor station to work on predefined scenarios and exercises for trainee evaluation. Scenarios are called ATE for Automatic Training exercise and evaluation is done using TPM for Trainee Performance Monitor.

The INDISS PLUS® OTS can be easily deployed on the intranet network and connected to centralized training management system (LMS) via SCORM).

Lifecycle Modeling

INDISS PLUS® was developed with the future of simulation in mind. Within the same INDISS PLUS® environment a model can be developed and progressed throughout the full project lifecycle : design, training, commissioning and start-up, and real-time on-line support during operation.


  • Independent high-fidelity platform
  • Integrated 3D modeling
  • Embedded custom models
  • Realistic emulation for all major DCS
  • Direct connect to all major DCS

Standard Models

CORYS provides standardized high fidelity process models for many processes, ranging from standard plant equipment to complex processes.

indiss plus

Value to Customers  

High-Fidelity standard models behave like real process units, used for:


  • Familiarization with process units behavior
  • Normal operations at different throughputs
  • Start-up and shutdown
  • Equipment malfunctions and emergency conditions
  • Can be on premise and/or Cloud deployed – train from anywhere anytime for any of their sites
  • Multiple DCS configurations can be provided
  • Companion Training Manual (CTM) with customized training curriculum, based on specific customer needs

Contact us today for a list of our standard models

3D VRSite®

3D Virtual Reality Training

CORYS’s virtual reality technology brings together high fidelity dynamic simulation models and plant topography models allowing both the outside operator and console operator to interact with each other as they would in real life.

VRSite® Virtual Reality Software

Main features


  • Using up-to-date 3D Engine
  • Open environment with interfaces to third party applications
  • Three-dimensional simulation of the environment and scenarios of real process operation
  • Provide interactive operation of the process, as in the real plant in both normal and emergency conditions

The 3D Models can be derived from existing 3D CAD drawings which now often accompany the construction of new units, or from pictures we take of existing older units without up-to-date 3D CAD drawings.

Individual Field Operator Development

The operators will be able to complete exercises in a simulated, high fidelity 3D representation of the real plant. The 3D model provides the most realistic experience and practice for field operators in the safety of a virtual environment. The 3D simulator can also be dynamically connected to a process model allowing for interactions between field and console operators.

Value to Operators


  • Familiarise plant layout
  • Learn hazards
  • Learn plant procedures
  • Practice standard operating procedures (SOPs)
  • Shutdowns and all emergency responses

Emergency Planning

3D Models provide a computer simulated environment for operator safety training. Operators will acquire the safety knowledge needed and be able to practice drills that reduce safety training costs and keep inexperienced trainees away from the plant until they are ready and qualified.

Value to Operators


  • Practice emergency procedures
  • Developing new or modifying existing emergency procedures
  • Hazards analysis
  • Combined exercises with console operators

Additionally, our software features multi-player capabilities. This allows simultaneous interactions among avatars so that trainees work together as a crew in the virtual plant.

Companion Training Manual

Process training with the CORYS Companion Training Manual™ for High-Fidelity Process Simulators

CORYS offers a unique Operations Training program that enables our customers to develop a comprehensive, unit specific, competency-based methodology for training operations staff using our high-fidelity training simulators.

Working with your Subject Matter Experts, CORYS will develop a customized Companion Training Manual™ (CTM) that accompanies your high-fidelity Operator Training Simulator. The CTM is structured to begin with the process operating at normal conditions, allowing operations staff to gain an understanding of the fundamentals of their units and learn the process relationships between independent and dependent variables. 

The training exercises are designed to build important abnormal situation management skills over the course, beginning with normal operations, continuing with minor upsets, complex control systems, environmental excursions, and eventually building to the most severe process upset conditions and shutdowns. 

The scenarios are organized in the following six chapters :

  • Chapter 1 – Normal Operations
  • Chapter 2 – Instrument Troubleshooting
  • Chapter 3 – Advanced Regulatory Control Strategies and Safety Integrated Systems
  • Chapter 4 – Unit Emergencies
  • Chapter 5 – Unit Shutdowns
  • Chapter 6 – Normal Startup and Shutdown 

CORYS can also link these scenarios to specific customer training outcomes and integrate them into the Learning Management System (LMS).

The CORYS CTM provides a comprehensive training, certification, and re-certification program for console operators, enabling your organization to maintain safe, reliable, and environmentally compliant operations.


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