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Foxboro I/A DCS Series，Foxboro DCS Hardware
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Invensys Operations Management offers premiere feedwater control systems using
the Foxboro® I/A Series® Distributed Control System (DCS). Recent implementations
have offered operation philosophy enhancements, improved startup and runtime
performance and significant reduction of unplanned unit trip outages.
These advanced control techniques allow for less operator required interaction, more
time of automatic control – including during start-up and shut-down when most unit
trips are caused – making the entire control system more capable of handling process
upset conditions along with normal operation.
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For decades the Foxboro I/A Series® distributed control system has helped shape our industry and changed the way our clients work, proudly improving plant-wide operations, performance and asset utilization in the manufacturing enterprise. Today the I/A Series system has evolved into a process automation system that will, again, change everyone–Foxboro Evo. Foxboro Evo extends proven I/A Series technology, Foxboro control expertise and leverages Triconex safety solutions to even further protect your plant’s operational integrity, enhance the operational insight of your people and future-proof your business. Foxboro Evo extends the Continuously Current philosophy, maintaining multi-generation interoperability and ensuring easy upgrades for our I/A Series customers installed base. Learn more about the I/A Series evolution below.
1. Introduction
Foxboro has released several versions of I/A Series DCS. Beginning with the node design, and continued to mesh design. All of these developments are intended to increase the performance and capability for future expansion.
2. Hardware Overview (Node Design)
The following picture shows the system architecture for I/A Series with the node design
Basically, I/A Series consists of modules as follows:
2.1. Processor Modules
Processor Modules consists of:
Application Processor (AP): functioned as server, host configuration software and storage. Use Unix OS.
Workstation Processor (WP): functioned as client for operator interface. Use UNIX, or Microsoft Windows (NT, XP) OS.
Application Workstation (AW): combination of AP and WP. Use UNIX, or Microsoft Windows (NT, XP) OS
Dual Nodebus 10BaseTInterface (DNBT): to connect AP, WP or AW to nodebus via ethernet cable
Control Processor (CP): to execute control computation. The CPs can be in single or redundant mode, and will be connected to Field Bus Module (FBM).
2.2. Fieldbus Modules (FBMs)
FBMs are used as IO modules, to receive analog or digital signal from field devices, or to send analog or digital output signal to field devices.
2.3. Mounting Structure and Enclosure
Mounting structure is a rackmount structure that will be used to placed modules (CPs, FBMs, power modules). The arrangement of mounting structures will be placed on industrial panel called Enclosure.
3. References
For more information about Product Specification Sheets of the latest I/A Series DCS
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