PLCs, DCSs & Controllers


Yokogawa’s ProSafe-RS

January 2015 PLCs, DCSs & Controllers

Achieving seamless integration between distributed control systems (DCS) and safety instrumented systems (SIS) for plant automation has traditionally resulted in complex design and integration challenges. Conventionally, two separate monitoring and operating environments were required for a DCS and SIS, with different sets of communications and distinctively different hardware architectures. It is a given that project lifetimes and expenses are higher for an integrated standalone DCS and SIS, compared to that of an integrated Yokogawa solution.

Yokogawa has bridged this DCS-SIS incompatibility with the ProSafe-RS, a truly integrated safety PLC for the process industries. Since its launch in 2005, ProSafe-RS has globally contributed to almost 1.2 million

I/Os, securing the position of the fastest growing safety system in the world. ProSafe-RS is ideally suitable for emergency shutdown systems (ESD), burner management systems (BMS) and fire and gas systems (FGS), due to its flexible and highly reliable architecture.

Yokogawa’s ProSafe-RS (SIS) and Centum VP (DCS) both utilise the same unique, highly reliable dual redundant architecture. The architecture consists of the Yokogawa’s secured dual redundant, 1 Gbps Vnet/IP control network, which communicates both as a main safety and control network. This provides reliable and fast communication to various control and monitoring (HMI) components with special safety integrity checks performed with unique safety layers embedded as per SIL 3 guidelines. In the event of a Vnet/IP interruption, the local safety controller can still work independently.

Due to its high scalability and seamless integration with the Centum VP DCS, very large plant configurations can also be achieved easily and effectively. Furthermore, various applications such as Emergency Shutdown (ESD), Fire and Gas (FGS) and Boiler Management (BMS) can be performed within the same architecture, thus providing minimal inventory, optimised footprint and reduced total cost of ownership for end-users.

SIL3 is achieved, even with a single CPU due to the ProSafe-RS’s dual architecture design within each module. Additionally, the I/O modules can also be installed in a dual redundant configuration. This flexibility makes it possible for the user to configure redundancy on a module by module basis, achieving the required availability for identified critical plant areas.

ProSafe-RS can execute safety logic at 50 ms, and allows multiple inputs and outputs to be scanned rapidly. ProSafe-RS has an excellent remote I/O function, enabling the linking in either a chain or star topology of local or remote I/O nodes with distances up to 50 kilometres. This makes it possible for controllers in a central control room to communicate with I/O modules in distant locations, thereby reducing the TCO (total cost of ownership) through minimising the system hardware footprint and maintenance costs. Robustness against harsh environments is achieved with an ISA G3 corrosive protective coating option.

ProSafe-RS applications include:

• ESD and fire alarm systems for offshore platforms.

• Wellhead SIL RTU, ESD, fire and gas systems integrated with Centum VP DCS and Stardom RTU.

• Outdoor wellheads and RTUs.

• ESD, FGS, control and high integrated pressure protection system.

• Non-Yokogawa SIS replacement projects.

For more information contact Christie Cronje, Yokogawa South Africa, +27 (0)11 831 6300, [email protected], www.yokogawa.com



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Innovating control and display solutions
PLCs, DCSs & Controllers
Mimic Group, founded in 1971, started with electronic and mimic displays before expanding into control desks, software and display electronics.

Read more...
ABB technology for greater circularity in metals and mining industries
PLCs, DCSs & Controllers
ABB has been selected by GreenIron, an innovative Swedish company working in the mining and metals industries with its patented materials reduction technology, to provide automation and control system solutions for a first commercial facility in Sandviken, Sweden.

Read more...
EtherCAT Box modules for confined spaces
Beckhoff Automation PLCs, DCSs & Controllers
Users of EtherCAT and EtherCAT P Box modules from Beckhoff’s EP and EPP series benefit from 25 years of IP67 expertise in the I/O sector. The broad product range for decentralised distribution of the I/O level directly at the machine or system has been continuously expanded and further developed during this time.

Read more...
ABB updates distributed control system
ABB South Africa PLCs, DCSs & Controllers
Leveraging 30 years of continuous innovation and reliability, ABB’s updated Freelance 2024 distributed control system (DCS) offers greater plant adaptability, faster and more reliable device communication, improved system security, and seamless data exchange.

Read more...
Four ways modern operations control can boost sustainability and efficiency
PLCs, DCSs & Controllers
With the growing importance of digital transformation, HMIs and scada have evolved from control panels to vast operational hubs. Next-gen HMI/scada can bring together data, personalisation, and advanced insights to successfully achieve organisational goals, it is important to think about HMI/scada holistically within the operations ecosystem.

Read more...
The convergence of intelligence: DCS, SCADA and TLC
Schneider Electric South Africa PLCs, DCSs & Controllers
In the early days of industrialisation, control systems were primarily mechanical, and relied on manual intervention and simple feedback loops to manage processes. Now, in the 21st century, industrial process automation systems are mind-blowingly intelligent, and provide almost unparalleled control and monitoring capabilities, making them integral to modern industrial systems.

Read more...
PC-based control for advanced hydrogen storage technology
Beckhoff Automation Editor's Choice PLCs, DCSs & Controllers
The proportion of renewable energies from solar, wind and water is rising continuously. However, sufficient storage options are of the essence to use these energies as efficiently as possible. GKN Hydrogen offers a particularly compact and safe option, low-pressure metal hydride hydrogen storage systems with PC-based control from Beckhoff.

Read more...
ABB modernises key board mill
ABB South Africa PLCs, DCSs & Controllers
ABB has secured a landmark contract to modernise Smurfit Kappa’s Paper Machine 5 at its corrugated cardboard mill near Mexico City. ABB will provide Smurfit Kappa with DCS, accompanied by a comprehensive paper machine drives system, encompassing some of the market’s most advanced drives and motors meticulously designed to optimise PM5’s performance.

Read more...
The synapses of the distributed control system
Schneider Electric South Africa PLCs, DCSs & Controllers
Industrial operations require a distributed control system (DCS) to coordinate and control their process subsystems in real time. Like the brain, a DCS is a multitasking maestro, controlling and coordinating complex processes in a myriad of industrial setting such as large manufacturing plants, providing valuable top-down control.

Read more...
Modular assembly platform for clean manufacturing
Beckhoff Automation PLCs, DCSs & Controllers
JR Automation delivers custom automated solutions for numerous industries. It has done this through its scalable, modular automation platform, FlexChassis, which speeds up time to market while cutting costs. The company chose the XTS linear transport system from Beckhoff because of its speed, and modular design that allows for multiple configurations.

Read more...