| Business Benefits from Moxa |
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Turbo
Ring recovery time < 300 ms and relay-out
guard against system failure.
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EDS-508 Series is Class 1, Div. 2 certified for use in hazardous environments.
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UC-7408 Series is RealCOM+ enabled
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| Remote communication and Real COM emulation
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| Multi-host connection for redundant SCADA
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EDS-508 Series can send a warning via e-mail or relay output when a user-configured exception is detected, providing system managers with real-time alarm messaging. |
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EDS-508 Series supports two power inputs for increased reliability. |
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The fanless design and high MTBF rating of the EDS-508 Series improve reliability. |
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Continuous
Control and Monitoring Network for Semiconductor
Manufacturing |
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 The manufacturing of semiconductors is gaining importance in worldwide electronics-based markets. With the increasing demand from worldwide markets, a fortune is being invested in building plants with high end facilities that increase the efficiency, volume, and quality of manufacturing. As new technologies are phased in when constructing a state-of-the-art semiconductor plant, a well planned infrastructure network is important for establishing an efficient and secure manufacturing site.
Semiconductor plants are using industrial Ethernet
solutions as the plant-wide network infrastructure.
The fact that Ethernet is open protocol makes
it relatively easy to integrate different systems
with the network. The Ethernet network is used
to connect a variety of main systems in the semiconductor
plant to set up continuous control and monitoring
from a remote control room. Using the remote
control room approach helps facilitate daily
operations and improves manufacturing efficiency.
Semiconductor plants require a reliable, complete
device networking solution that can connect all
devices and systems to the Ethernet network.
Moxa's products fulfill and exceed all of these
requirements. |
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IC Foundry Chooses Moxa Solutions for Safety Monitoring |
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| Introduction |
A
Taiwan-based global semiconductor
corporation has a large specialty IC foundry
that offers
a range of process technologies. The products
produced by the corporation include a wide range
of ICs, such as 0.18 mm logic, mixed-signal,
analog,
high voltage, low power, CMOS RF, Flash, embedded
memory, and bipolar CMOS DMOS (BCD) ICs. One
of the plants produces approximately
55,000 8-inch wafers per month.
The semiconductor manufacturing process uses
many chemicals and gases, some of which are extremely
toxic. The gases must be carefully monitored
and controlled to ensure the safety of plant
workers and the people living in the vicinity
of the plant. The data collected during monitoring
is also used to prepare environmental reports
for both local and government monitoring agencies.
The corporation needed an extremely reliable
network to collect and transmit all monitoring
data to
the plant's monitoring and control center. The
network must be extremely reliable, with non-stop
operation and quick recovery after failures.
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| System Description |
The
semiconductor plant uses a combination of continuous
monitoring” gas
monitors to detect toxic gases, such as ammonia,
oxidizers, hydrides, mineral acids, hydrogen cyanide,
hydrogen sulfide, and PFCs. The monitoring is done
using CM4 gas monitors and system 16 gas monitors
(four CM4 monitors combined), and gas cabinets that
collect parameters such as temperature and barometric
pressure. The gas monitors use digital signal data
and special chemtapes to detect leaks in a matter
of seconds. The complexity (the number of different
gases that need to be detected) of a given location
dictates the level of monitoring that is required.
The locations are usually scattered throughout the
plant, which means that distance, speed, reliability,
and safety factors related to operating in a hazardous
environment factor heavily into the network configuration.
This semiconductor plant chose a combination of Moxa
products that includes several UC-7408 data
acquisition embedded computers for remote communication
with their SCADA system, and EDS-508-MM-CC 8-port
managed Ethernet switches for the fiber backbone
and communication between devices. The EDS-508 series
is Class 1, Div. 2 certified for use in hazardous
environments that contain volatile flammable liquids,
gases, or vapors, allowing the switches to be installed
in hazardous environments in the plant. The EDS-508's
Turbo Ring feature supports a scalable, extremely
reliable, always-on, high speed fiber backbone that
supports quick recovery and long distance data transmission.
Monitoring data collected throughout the plant is
transmitted to the central monitoring center in real
time, allowing for more reliable and efficient monitoring
and data collection. |
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