DS200DSPCF1AAF - Software EPROM

SPECIFICATIONS

Part Number: DS200DSPCF1AAF
Manufacturer: General Electric
Series: Mark V
Product type: GE Software EPROM
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

DS200DSPCF1AAF is a software EPROM designed and developed by GE. It is a part of the Mark V control system. The Erasable Programmable Read-Only Memory (EPROM) is a specialized memory chip known for its non-volatile nature, meaning it retains stored data even when the power supply is turned off. The programming process involves storing data in the EPROM using a method that alters its internal structure. Once programmed, the data remains intact until it is intentionally erased. The erasure of an EPROM is accomplished by subjecting it to strong ultraviolet (UV) light.

Product Attributes

• When the EPROM is exposed to ultraviolet light, the photons in the UV rays cause a release of charge that resets the memory cells, effectively erasing the stored data. This erasure process makes the EPROM ready to be reprogrammed with new data.
• The transparency of the fused quartz window is a key design element of the EPROM, allowing for the controlled erasure and reprogramming of data by utilizing ultraviolet light exposure. This characteristic makes EPROMs valuable for applications where data retention is crucial, yet periodic updates or changes may also be necessary.

Application Software Features

• The creation of application software involves utilizing in-house software automation tools. These tools are designed to select established control and protection algorithms from GE and then merge them with the necessary inputs and outputs (I/O), sequencing operations, and visual displays specific to each application.
• The processing of fixed-point data occurs at a rapid pace, running at a frame rate of 62.5 milliseconds (16 Hz). This frame rate represents the total time taken to gather control inputs, condition these inputs, execute the application software, and transmit output commands to control valves.
• One notable feature is the ability to modify the application software even while the turbine is in operation. These changes are safeguarded by password protection and can be downloaded directly to the control module.
• All application software resides in the control module's nonvolatile EEPROM memory, ensuring its retention even during power loss or system shutdowns.
• The execution of application software follows a sequential process, visually represented in a ladder diagram format, which simplifies its comprehension and maintenance.
• To facilitate adaptability and customization, a library of software building blocks is available. Maintenance personnel can utilize these blocks to introduce or alter analog loops and sequencing logic as needed. Additionally, math blocks are provided to support mathematical operations within the software.
• Comprehensive documentation of the application software, including primary elementary diagrams, I/O assignments, and tuning constants' settings, is directly generated from the source code. This documentation can be printed on-site, aiding in troubleshooting, maintenance, and understanding of the system's configuration.

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FREQUENTLY ASKED QUESTIONS

What is DS200DSPCF1AAF?
It is a GE Software EPROM designed and developed by GE

What is the processing speed for fixed-point data in this system?
Fixed-point data is processed at a rapid pace, operating at a frame rate of 62.5 milliseconds (16 Hz). This encompasses gathering control inputs, conditioning them, executing the application software, and transmitting output commands to control valves.

Can the application software be modified while the turbine is running?
Yes, changes to the application software are possible even during turbine operation. These modifications are protected by password security and can be directly downloaded to the control module.

Where is the application software stored, and how is its retention ensured?
All application software resides in the control module's nonvolatile EEPROM memory, ensuring data retention even during power loss or system shutdowns.

How is the execution of application software represented, and why is this format used?
The execution of application software is represented in a sequential ladder diagram format. This format simplifies comprehension and maintenance of the software, aiding in its visual representation and logical understanding.