PLANT MANAGEMENT
in a highly “human factored” manner for an operator, generating trends, alarms, etc. T e NovaTech D/3 interface, for example, displays real time process information in a complete customer- oriented graphical human-machine interface (HMI). Custom graphics, built using dynamic objects from an extensive library, make it easy for the operator to control the process, enter information, and interact with sequence programs. Standard operating procedures, maintenance records and other information are also available in desktop application formats. T e information can be viewed using common web browsers to display data from multiple plant sites from anywhere in the world.
A PATH INTO THE FUTURE A DCS replacement is a signifi cant investment that is designed as a long- term contribution to operations. Two key considerations are the system’s migration path and the overall DCS lifecycle cost. Whether the search for a control
system replacement was caused by system limitations or an existing system being “dead ended” by the supplier, process manufacturers want to avoid this situation
happening in the future. When considering a project or supplier, the new system should be scalable, fl exible and able to upgrade to future releases on an ongoing basis to leverage system updates and improvements. T e D/3 system, for example, was
introduced in the early 1980s. As a testament to its longevity and fl exibility, Wood says the system can still be upgraded with applications written to run on the current version. Hardware has to be upgraded, of course, but a complete “rip and replace” is not required. T e company refers to it as an evergreen solution, based on its demonstrated commitment to protecting the customer’s migration path. T e total lifecycle cost of ownership needs to be factored in any DCS or control system migration or replacement project. T e fi nancial investment in replacing a control system encompasses more than the initial outlay for new hardware, software and engineering services. Process manufacturers need to also consider recurring maintenance, service support and upgrade costs that they will incur over what can easily be a 20-year or more lifespan. “A DCS sits on top of an inherently dynamic processing environment made more so as new equipment is added,
Human Factors in Health and Safety
A better understanding of human factors – how the people, the job and the organisation interact as a whole – can help drive safety standards and overall business performance.
Our modular training programme, Human Factors in Health and Safety, provides the chance to learn more about human factors in the process industries, and how to implement solutions to manage it effectively.
The following modules are available:
■ Managing Human Factors ■ Managing Human Failure ■ Strengthening Organisational Performance ■ Human Factors in Design
Find out more:
www.icheme.org/human-factors In partnership with
production lines are expanded, and as issues such as obsolescence and cybersecurity present new challenges over time,” explains Wood. “T at is easier to navigate if there is a well-defi ned system lifecycle plan and migration path forward that includes a carefully thought-out execution plan for success.”
DCS should be easy to upgrade, without needing a complete “rip and replace”
MB0103_18 MB0103_18 Human Factors
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