橫河的分佈式控制系統（DCS）CENTUM系列的核心是一個獨特的“成對備用”的控制器結構，由一組冗餘的CPU模塊組成，每個模塊都配備雙微處理器。如果檢測 到任何不匹配，這兩個處理器連續比較它們的輸出並啟動無凸點切換。通過這種方式，CENTUM系列系統達到99.99999％（7個9）的可用性。其他橫河產品，如STARDOM RTU遵循類似的設計理念，利用在高端PC中發現的相同的錯誤檢查和糾正（ECC）內存，並具有正常內存容量的兩倍，便於長期存儲氣體體積數據等現場訊息。這有助於減少停俥時間，提高系統可靠性，並無需前往偏遠井位從而提高維護效率。
FCN-RTU具有如同256 MHz 32位RISC處理器的特性，是經過現場驗證的FCN / FCJ體系結構的進化。同時提供高性能和低功耗。該低成本模型具有四個串行I / O端口和一個乙太網端口，進而滿足SCADA應用的最低要求。
橫河在1998年發布了第一批FOUNDATION fieldbus兼容產品後，開始積極發展現場數位技術。作為FOUNDATION fieldbus國際標準定義的主要倡導者，橫河透過減少現場佈線的需要，引入智能現場設備，並改善數字現場設備的管理和診斷，在優化操作中發揮著重要的作用。
橫河無線技術花費了大量的時間和精力來增加測量點。傳送器可以方便地安裝在佈線困難的物理位定或需要耗費成本的地方。通過無線網路連接傳感器極大提高了監測效率，同時優化 了解功耗和通訊，進而最大限度提高了測量可用性。在廣域網路上整合無線測量有助於將現場訊息傳輸到控制室。在控制室可以通過橫河的FAST / TOOLS SCADA系統實現可視化管理。
在油氣田作業中引入數位技術有助於優化生產，提高運轉安全性和保護環境。還有一個優勢是這些數位技術的部署非常便利。橫河的STARDOM RTU和混合PLC可以同時控制模擬傳感器和數字傳感器 ，不再需要安裝網關或使用Modbus，FOUNDATION fieldbus™，HART，DNP3或DeviceNet建立專用網路或其他類型的現場網路。因此，可以實現對數字現場網路的逐步升級。
橫河提供一個集成的人機界面(HMI)，實現統一監控和報警處理。這使系統更容易操作，減少了操作員的錯誤，提高了安全性，並節省了培訓時間和費用。橫河統一網關站(UGS)支持與橫河智能RTU（STARDOM）和使用Modbus（TCP/RTU）、OPC、以太網/IP等技術的本地網絡連接，無人和載人井口都易於集成。由於來自不同網絡的圖形都跟CENTUM VP具有相同的外觀和感覺，操作員隻需要學習如何使用CENTUM VP HMI，就可以輕鬆地操作整個系統及處理報警。UGS還適用於所有類型的通訊，如SAMDOM、Modbus、Ethernet/IP的單冗餘和雙冗餘通訊網絡。隻需要簡單的編程就可以構建具有額外UGS的高度可靠的系統。。
UGS作為CENTUM VP和子系統控制器之間的網關。UGS用與CENTUM VP現場控制站相同的方式操作和監視子系統控制器。
INPEX Corporation (INPEX) is Japan's biggest oil and gas development company and is involved in all aspects of this business, from research to exploration, production, and sales. INPEX is engaged in projects all over the world, in a total of 29 countries, including Japan, where it operates a gas production plant near Oyazawa, a town in Niigata prefecture.
A Malaysian Gas Processing and Transmission Company a subsidiary of the national oil & gas major, plays a prominent role in the gas business value chain. The company operates as a throughput service company providing the services of processing and transmission of gas to the power generation sectors and various customers.
Saudi Aramco's operations span the globe and the energy industry. The world leader in crude oil production, Saudi Aramco also owns and operates an extensive network of refining and distribution facilities, and is responsible for gas processing and transportation installations that fuel Saudi Arabia's industrial sector. An array of international subsidiaries and joint ventures deliver crude oil and refined products to customers worldwide.
Mobil Oil Indonesia (MOI) identified Yokogawa as its vendor of choice for all natural gas exploration installations in the north of Sumatra.
Nederlandse Aardolie Maatschappij (NAM) is the Netherlands' largest natural gas producer. In addition to onshore fields, NAM operates manned platforms and four unmanned monotowers in 19 offshore locations. These connect to a pipeline network that comes ashore at Den Helder.
STARDOM field control node (FCN) autonomous controllers allow both Modbus master and slave functions to run simultaneously.
Gas flow data calculated by an RTU can be sent back to a transmitter using the two-way communications capability of FOUNDATION fieldbus.
To make the most of the advantages of GPRS, Yokogawa's STARDOM FCN/FCJ intelligent RTUs and FAST/TOOLS SCADA package have several functions that reduce the number of packets that must be sent. This dramatically lowers communication fees.
Operators must receive diagnostic information before a line block leads to a malfunction. Yokogawa provides predictive diagnostics based on trend analysis of the blocking factor, which improves maintenance efficiency and reduces maintenance costs.
Level transmitter configuration can be very time consuming. DPharp transmitters with advanced software functionality eliminate this time consuming task. With maintenance shops getting smaller, finding equipment that allows us to do more with less becomes a priority.
One of the most common applications for differential pressure transmitters is flow measurement. DPharp differential pressure transmitters have some unique signal conditioning features to eliminate instability at low flow rates.
The major methods of improved oil recovery are water flooding and steam injection. "These technologies make a tremendous contribution to recovering additional oil from old wells as well as improve primary recovery of operating oil fields."
HART communication is a means of transmitting multiple signals by superimposing long-standard 4-20 mA DC analog signals on digital signals. The figure below is an example of connecting field instruments and upstream devices using HART communication compatible VJA1/H signal conditioners.
The paperless recorder DX series instruments allow you to determine temperature and humidity, and manage the results as manufacturing and quality data at a reasonable cost with a simple configuration.
Reverse osmosis (RO) is a separation process that uses pressure to force a solution through a membrane that retains the solute on one side and allows the pure solvent to pass to the other side. More formally, it is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure.
Yokogawa provides controller embedded flow calculation library based on AGA (American Gas Association) reports.
This paper introduces the ADMAG AXR 2-wire magnetic flomwmeter solution for chilled water application in air conditioning unit.
Industrial Combustion sources such as thermal cracking furnaces and, process heaters play a critical role in the process industry. Because the large amount of fuel such as gas or fuel oil which is consumed in these processes, their combustion efficiency directly affects the performance and operational costs of the production facilities.
Floating-point format calculations have enabled physical quantities (in engineering units) to be used in calculations.
Risk management is crucial when expanding your business.
Industrial Combustion sources such as thermal cracking furnaces and, process heaters play a critical role in the process industry.
ISA100 wireless pressure transmitters
The client wanted to monitor the pressure of the gas well at offshore platform remotely to reduce maintenance cost and increase safety of maintenance personnel.
The client wanted to monitor the injection gas pressure of gas lift remotely in central control room. Antitheft measures are needed to install new equipments and cables.
ISA100 wireless temperature and pressure transmitters.
A battery room is used to storage batteries for emergency power management in the plant. Each substation has battery room and the storage batteries are lead-acid batteries which must be maintained within specified operating temperature limits. Temperature management is important to ensure a long service life of the batteries especially for the plant in desert climates.
Recently, several ARC Advisory Group analysts and management team members had a chance to sit down with the new Yokogawa President and COO, Mr. Takashi Nishijima, and several other top Yokogawa executives to discuss the company's burgeoning presence in the worldwide upstream and midstream oil & gas industry.
Alarm management is not just a project that has a start and end date; it's a continuous cycle. Once the alarm system has been reviewed and improvements have been identified, we must check that controls are in place to ensure the alarm system remains functional. The key is to ensure that the system is continuously monitored and any changes are fully documented. There are seven key steps for alarm management. Rationalization is one of those critical steps.
Tuning PID controllers can seem a mystery. Parameters that provide effective control over a process one day fail to do so the next. The stability and responsiveness of a process seem to be at complete odds with each other. And controller equations include subtle differences that can baffle even the most experienced practitioners.
The worlds of process automation and production management have been converging for some time. What once used to be islands of automation and production management functionality connected through highly proprietary integration schemes that were costly to maintain have developed into integrated platforms that provide seamless data exchange between the world of automation and the plant floor, the functions of production and operations management, and integration with business level systems.
The world of process automation is governed by procedures. While we like to refer to the process industries as being largely "continuous", this could not be further from the truth. Process manufacturing is constantly in flux.
From engineering to installation, commissioning, operations, and maintenance, FOUNDATION fieldbus offer significant cost reductions of 30 percent or more versus conventional analog systems. Many of these cost reductions come from the advanced functions that fieldbus offers versus analog technology.
The automation suppliers that will be successful in the long term will be those that effectively address application or industry specific problems for end users with a value proposition that cannot be ignored. These problems exist throughout the process industries today, and they won't be solved by simply offering a product, but through a combination of hardware, software, services, application expertise, and knowledge.
In ARC's view, customers need a compelling business value proposition to justify investment in any kind of automation. Vigilance and VigilantPlant were created with this in mind. Yokogawa's vision with VigilantPlant is to create an environment where plant personnel and operators are well informed, alert, and ready to take action.
Yokogawa has come a long way in making its message clear to the world of process automation. Last year, the company embarked on a full-scale global marketing campaign to make customers aware of the company's focus on system reliability, security, dependability, and robustness. Dubbed "Vigilance", the campaign created a unified message for the company and greatly helped expand awareness of the Yokogawa brand and corporate philosophy.
Process automation end users are under more pressure than ever to do more with less. The current economic climate means that many automation capital projects are on hold. With capital budgets tighter than ever, users instead focus on operational budgets (where cost cutting is also a key concern), or on automation investments with a very rapid return on investment.
In today's dynamic industrial marketplace, the only constant is change. Raw material costs, energy costs, market demands, environmental and safety regulations, technology, and even the nature of the labor force itself are constantly changing, and not always in predictable directions.
Migration of a refinery's DCS provided an opportunity to reconfigure and consolidate the control rooms and operational management system.
Process plants are run according to operational procedures. These procedures consist of a set of tasks that are executed in a consistent manner to achieve a specific objective, such as starting up, shutting down or transitioning a unit as part of making a product.
Partnering with Saudi Aramco, Yokogawa is providing local project execution including testing and implementing a continuing policy of Saudisation.
Many published papers discuss the benefits of subsea HIPPS and many studies show the potential cost-benefit analysis of this technology in deepwater applications. An internet search for subsea HIPPS is informative; however, little appears that discusses the systems already delivered and operating successfully.
Chevron turns to deeper relationships with fewer suppliers to increase project execution consistency
Using wireless for gas detection is a very flexible method, and allowed ExxonMobil to establish it as a redundant system
Trinity integrated Systems' iDefine Suite reduces errors and streamlines design of safety instrumented systems
Pipeline & Gas Journal, February 2014
The line of functionality between supervisory control and data acquisition and distributed control system is blurring. These two traditionally disparate technologies are now seen as competitors in similar application environments.
Offshore, February 2013
Offshore and deep-water production has been a significant factor in the sustained growth of the oil and gas industries over the past decade and this trend is expected to continue beyond 2013.
How much do you know about pressure transmitters? Are you accurately, quickly and reliably measuring pressure? Ultimately, the drive of any good pressure transmitter is to get an accurate, reliable pressure measurement to the data user quickly. This video gives you the answers to your basic questions about pressure and pressure transmitters.
- 構建小型現場無線系統的理想選擇 -