yparsard@yasha.co.za
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About
About Us

Background

Yasha Software Consulting was yasha means successfounded in October 2003. Back then, the entrenched process control giants struggled outside their domain expertise of PLC's and DCS's; particularly when it came to the creation of software products and/or the execution of software based projects. This was particularly evident the higher one got up the ISA-95 control hierarchy. This apparent lack of skills made it feasible for a small consulting company to arise.

Experience

Yasha employees have through the course of their careers, executed projects and developed solutions across many different industries, including:

  • Automotive
  • Food and Beverage
  • Metals and Mining
  • Oil and Gas
  • Pulp and Paper

This cross-industry exposure, as well as our vendor neutrality, has tangible benefits for the end client, as it allows for a best of breed approach, that not only spans a specific industry but also crosses verticals.

ISA-95 Control Hierarchy

The control hierarchy describes the functional levels at which decisions are made:

  • Level 0: Defines the actual physical processes
  • Level 1: Defines the activities involved in sensing and manipulating the physical processes.
  • Level 2: Defines the activities of monitoring and controlling the physical processes.
  • Level 3: Manufacturing Operations Management Layer (MES, LIMS, ...). Defines the activities of the work flow to produce the desired end-products.
  • Level 4: Business Planning and Logistics Layer (ERP, ...). Defines the business-related activities needed to manage a manufacturing organisation.

Levels 1-2 can be classified as the Automation Layer (PLC, DCS, ...). The usefulness of this model lies in its capability to provide a consistent set of terminology and models, upon which more detailed interfaces and standards can be defined.