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| EtherDevice™ Switch |
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ED6008-MM-SC |
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Industrial 8-port Managed Redundant Ethernet Switches |
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IMC-101-M-SC |
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Double-Strand Industrial 10/100BaseT(X) to 100BaseFX Media Converter |
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| Xuefeng Steel in Wuxi City, Jiangsu Province |
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| Business Benefits from Moxa |
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MOXA Turbo Ring supports a fast redundant ring and recovery time less than 300 milliseconds to create real-time, reliable communication networks |
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Fiber Ring topology protects against EMC/EMI interference. |
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ED6008-MM-SC supports long communication distances of up to 2 km. |
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IP30, rugged high-strength aluminum case, DIN-Rail or panel mounting, and certification for operation in hazardous locations (Class 1 Div. 2/Zone 2). |
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ED6008-MM-SC can send out warning e-mails when a user-configured exception is detected, providing operators and system managers with real-time alarm messaging |
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ED6008-MM-SC provides web-based management that helps engineers manage and maintain the network from a remote site |
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Advanced Monitoring and Control Network for Steel Refineries |
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 The demand for steel by industries worldwide has been growing steadily for many decades, and this increase in demand has given rise to increased competitiveness between steel mills in terms of profitability, production costs, and the quality of steel that is produced. In order to compete more effectively, steel mills are increasing product quality, maximizing process efficiency, increasing production yields, and reducing operating costs by turning to automation to modernize the monitoring and control of processes.
Steel
mills are using industrial Ethernet with fiber cabling solutions to upgrade the monitoring and control of processes. In addition to overall cost and performance advantages, these solutions must be integrated with legacy control systems, be highly reliable in harsh, high temperature conditions that experience high EMC/RFI interference, and incorporate mixed-speed fiber ports, support longer network distances (typical of steel mill plant sites), and allow for future upgrades and expansion. Moxa provides complete solutions for the communication networks used in the steel refinery industry.
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China Steel Mill Upgrades Monitoring and Control Capabilities |
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| Introduction |
The
Xuefeng Steel plant in Wuxi, China, recently upgraded the monitoring and control system used for its primary steelmaking process, which revolves around blast furnaces, hot stoves, and a site that stores raw material. A big increase in the demand for steel in China has resulted in increased competitiveness between all steel mills in terms of profitability, production costs, and the quality of the steel that is produced. The upgrade at the Xuefeng plant helped to centralize the monitoring and control of processes, put in place a faster and more reliable fiber network infrastructure, and improve the monitoring and control of processes that have a direct effect on the quality of the steel.
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| System Description |
The
Xuefeng Steel plant's blast furnaces and hot stoves typically run 24/7 for long
periods of time and involve extremely harsh operating
conditions with molten steel, corrosive chemicals
and strong electromagnetic interference present.
Furthermore, since the raw material site is more
than 500 meters from the main refinery sites, the
Xuefeng plant must be able to transmit data over
relatively long distances. In addition, the new system
had to be economical to install, operate, and manage,
and was required to support the existing PLC control
system, while leaving room for future expansion.
Xuefeng
Steel chose the MOXA ED6008-MM-CC Industrial Ethernet Switch for its small size,
high port density, true plug-and-play replacement
capability, and overall low cost. Another important
feature of the switch is MOXA Turbo Ring, which allows
the Xuefeng plant to connect all blast furnace sites
by a reliable, fiber-based, redundant ring connection
that has a recovery time under 300 ms. The ED6008-MM-CC
switch is also easy to configure and manage, and
includes an auto e-mail warning function that allows
the ED6008-MM-SC to send real-time e-mail messages
and relay output alarms to operators and managers.
The ED6008-MM-CC provided the required harsh environment
capability, which includes a high MTBF of over 230,000
hours, the ability to operate in -40 to 75°C
temperatures when needed, plus redundant, 24 VDC
dual power inputs that can be connected to live DC
power sources. Xuefeng also used MOXA's IMC-101-M-SC
Ethernet to fiber media converter to connect the
ring topology of the main blast furnace sites to
the raw material site located more than 500 meters
away.
As
part of the new network support, the Xuefeng plant added a fast and reliable fiber network that covers the entire plant, dramatically improving data and signal collection but without compromising the existing PLC control system. The ability to collect data and signals efficiently from different places was a vast improvement compared to the previous system. With the new system, system controllers and operators can easily monitor and then quickly adjust the values of process parameters. This improvement was most apparent in the efficiency gained in the blast furnace/hot stove control systems that are the heart of quality control for any steelmaking process. The ability of the Xuefeng plant to collect and monitor temperature and pressure fluctuations and flow rates of raw materials and gases more accurately increases product consistency and quality.
The
MOXA ED6008-MM-SC with Turbo Ring provided the performance, features, reliability, and scalability the Xuefeng plant needed to take the next step in automating their plant. |
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