Electricity and Control April 2021

SAFETY OF PLANT, EQUIPMENT + PEOPLE : PRODUCTS + SERVICES

Greater precision in custody transfer

diagnostic data to alert users to common failures, such as the presence of dust on the scanner’s lens. The GuardShield 450L light curtain with CIP Safety over EtherNet/IP plug-in protects personnel from injuries related to hazardous machine motion. The CIP Safety plug-in gives users more access to diagnostic data to improve productivity and flexibility. For example, users can see exactly which beams are tripped on the light curtain to better understand the cause of a downtime event. Or they can take a sample of the light screen every 100 milliseconds to track profiles of products running through it and identify potential quality issues. CIP Safety is an extension to the Common Industrial Protocol (CIP), the application-layer protocol for EtherNet/ IP. Smart products that use CIP Safety with technologies such as GuardLink help improve safety and productivity and simplify wiring. They also offer premier integration with an Allen-Bradley Compact GuardLogix SIL 3 control system using the Studio 5000 Logix Designer application. These and other smart products, such as the 843ES safety encoder and CompactBlock Guard Safety I/O uni- versal encoder module, are part of the Rockwell Automa- tion safety portfolio that combines simpler connectivity and powerful data for smarter, higher-performing production. For more information contact Rockwell Automation. Email: mjunius@ra.rockwell.com Visit: www.rockwellautomation.com fusion, the modular safety gate system, the small control- lers PNOZmulti 2, and the firewall SecurityBridge, Prime Automation offers a solution that takes machinery safety requirements into account as well as access and entry protection. In this way it provides a coherent machine ac- cess concept, addressing machinery safety and industrial security. PITmode fusion, the operating mode selection and access permission system, regulates the access permis- sions for service engineers as well as other people and designated roles, and ensures that only individuals authen- ticated based on the data on a cryptographically protect- ed RFID key are authorised for actions according to their permissions. When combined with products from the modular safety gate system, optimum protection can be provided for safe- ty gates. No-one can open the safety gate until the reader unit registers the correct permission. The SecurityBridge firewall prevents unauthorised ac- cess and manipulation over the network by monitoring communication with the PNOZmulti 2 small controller and thus protects on-site operations from external interference via the network.

The Flow-X flow computer module from ABB has ob- tained C1D2 / Zone 2 Certification for highly accurate measurement in mid- and downstream oil and gas sector applications, in the harshest conditions. Accurate measurement is crucial to custody transfer. Minor errors can potentially have a high financial impact, but precision can be hard to maintain when operating in harsh field conditions. In response to this challenge, the ABB Flow-X gas and liquid flow computer has been im- proved to meet the Class 1 Division 2 and ATEX/IEC Ex Zone 2 certification, which extends its operating tempera- ture range from -40°C to +75°C with 5% to 95% humidity. Its analogue inputs provide unmatched accuracy of 0.008% and make the Flow-X series a high-accuracy flow computer for hazardous areas that complies with the most stringent standards for custody transfer and legal metrology, for the control room and the field. Flow-X is also one of the most versatile and cost- effective automation platforms used for measurement and control in gas and liquid pipelines, LACT units and truck and rail loading and offloading systems. With its complete control functionality it eliminates the need for any programming, an additional PLC or a sampler controller. As well as the typical proving, batching and PID control functions, Flow-X provides configurable valve, sampler, LACT and liquid (un)loading control. It does not require additional purging, Ex enclosures or junction boxes. With reliability being one of the top priorities, the entire Flow-X series provides a secure and stable solution for legal metrology. Rigorously tested for immunity for radi- ated and conducted electro-mechanical disturbances, it also incorporates role-based access control and secure communication to prevent unauthorised access and data tampering. A multilingual user interface and a guided setup and configuration of the flow metering system make it easy to use. Its traceability is fully compliant with API MPMS (the American Petroleum Institute’s Manual of Petroleum Measurement Standards) Chapters 21.1 and 21.2, in- cluding as-found/as-left verifications.

For more information contact ABB Process Automation. Visit: www.abb.com

For more information contact Prime Automation. Tel: +27 (0)41 819 7746

The Flow-X computer series provides for high precision custody transfer and is designed for use in harsh environments like those in the oil and gas sector.

Email: sales@primeautomation.co.za Visit: www.primeautomation.co.za/

Electricity + Control APRIL 2021

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