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CASE HISTORY

Consequently, following security, the SCAE scope of supply included redun-

the specific requests of the dancy of communication with the DCS managed
“customer and accompanying via optical fi ber (always with two media converters
to provide wired redundancy). This communication
him in the technical choice of has been tested during the FAT with the customer
hardware, in compliance with and will be tested during iFAT with DCS.
the mandatory safety standards Furthermore, SCAE has developed the software
for the plant, SCAE has provided and the HMI pages to permit the easy control of the
the CPUs in redundant mode packages, including the dynamic utilities of the he-
ater matched with the blower, and has developed
the preventive diagnostic, to permit the operator to
The High Availability solution (selected by SCAE) execute the best maintenance on the mechanical
uses redundant components with Hot-Standby parts.
performance. This means that both CPUs are Thanks to SCAE software developers and the
permanently running, operating in parallel, conti- SCAE electrical designers’ experience, every elec-
nuously synchronizing each other and monitoring trical part is constantly monitored and shown to the
the whole redundant system. If the primary CPU supervisor and every process instrument has been
is stopped, powered off or crashed or if a remote connected with a manageable HART Multiplexer
module line is disconnected, the other hot standby (available to the DCS through optical fi ber with ano-
CPU takes over by adopting primary status. ther media converter)
So SCAE, with this system, ensures continued re-
liable operation of the customer’s plant and appli- Therefore, each critical point of the project has
cation. been analyzed and handled by SCAE following the
strict specifi cations of the fi nal plant and has been
In addition, in accordance with the required levels of appreciated and accepted by the End-Customer.

Roberto Manzoni

Roberto Manzoni has graduated in Electrical Engineering at Politecnico of Milano; he has many years of
experience as Project Manager and as Electrical and Automation Project/Field Engineer, mainly in Com-
pressors, Dryers and Nitrogen production fi eld, for Oil & Gas; he has been working with the most famous
multinational corporations for the realization of key projects around the world.
After having successfully conducted several SAT (Site Acceptance Tests) both Onshore and Offshore,
he has become SCAE Systems and Automation Department Manager; leading a team of coworkers, he
coordinates and manages the development and realization of Automation Projects for the following areas:
steel, cement, chemical and petrochemical industries, with particular attention to compliance with IEC
61508 and IEC 61511 standards, being certifi ed as TÜV RHEINLAND FS ENGINEER.

SCAE: Automazione per packages Oil&Gas

SCAE ha progettato e realizzato il Quadro di Comando e Controllo di un doppio dryer in modalità Master/Slave,
destinato al settore Oil&Gas, sviluppando anche il relativo software di gestione.
Le specifi che tecniche del cliente e gli standard di sicurezza del sistema hanno richiesto l’adozione di particolari solu-
zioni tecnico/costruttive quali, per esempio: carpenteria realizzata ad hoc in acciaio AISI316L, PLC in confi gurazione
ridondata, HMI di controllo locale, alimentazione indipendente e ridondata per gli avviamenti e i circuiti ausiliari di
ciascuno dei dryer, un sistema di automazione comprensivo di diagnostica preventiva.
Una volta eseguito con successo il FAT relativo al Quadro, SCAE ha affi ancato il cliente nelle procedure di FAT del
package e ha collaborato con l’End User nell’implementazione della comunicazione ridondante con il DCS deputato
al controllo centralizzato di detto package e delle altre apparecchiature ausiliarie dell’intero Impianto.
Nel corso del 2021 è previsto un iFAT per collaudare la sopracitata comunicazione ridondata con il DCS, e succes-
sivamente, appena conclusa la fase di installazione in cantiere, eseguire il SAT inviando i propri tecnici specializzati
per il commissioning defi nitivo.

64 64 Impiantistica Italiana - Gennaio-Febbraio 2021