SPECIFICATIONS
Part Number: DS200GHDCF1CBG
Manufacturer: General Electric
Series: Mark V
Product type: Software EPROM Set
Availability: In Stock
Country of Manufacture: United States (USA)
Functional Description
DS200GHDCF1CBG is a Software EPROM Set designed and developed by GE. It is a part of the Mark V control system. To effectively erase data stored on an EPROM (Erasable Programmable Read-Only Memory), a process involving exposure to a strong source of ultraviolet (UV) light is implemented. EPROMs are equipped with a resin or fused quartz window situated on the top of their package, allowing direct access to the integrated circuit (IC) chip within. This window is specifically designed to permit the penetration of ultraviolet light necessary for the erasure process.
Features
- When an EPROM needs to be reprogrammed or cleared of existing data, it is placed under a strong source of UV light, such as a mercury-vapor lamp. This exposure to UV light causes a specific type of ionization within the EPROM's memory cells, located on the IC chip visible through the resin or fused quartz window. This ionization process allows the electrical charge that holds the stored data within these memory cells to dissipate, effectively resetting or erasing the data.
- The ability to erase data using ultraviolet light made EPROMs invaluable in early microcontroller technology before the development of EEPROM (Electrically Erasable Programmable Read-Only Memory) and flash memory. EPROMs were used extensively to store on-chip programs and data, allowing for reprogramming and modifications to the stored information. However, the erasure process involving UV light required the EPROM chip to be removed from the device and exposed to the light source, making it a more complex and time-consuming procedure compared to later non-volatile memory technologies like EEPROM and flash memory, which allow for in-circuit erasure and reprogramming.
Operator-Maintenance Interface
- The primary operator interface of the Mark V system is a comprehensive setup that includes an IBM-compatible PC, a color monitor, a keyboard, and a cursor positioning device, which can either be a touch screen, trackball, or mouse. Additionally, a printer is part of this interface. Its main purpose is to enable operators to issue various commands for controlling the unit, manage alarms, log data, and monitor the overall operation of the system. However, it's important to note that except for the Plant Load Control option, the operator interface doesn't directly handle the control or protection functions of the unit.
- These operator interfaces are connected to the Mark V panel(s) through coaxial cables, utilizing the ARCNET Local Area Network (LAN) communication protocol. This connection, known as the Stage Link, facilitates communication between the operator interfaces and the Mark V control panel(s). In instances where longer distances need to be covered between the operator interface computers and the turbine control panel, the Stage Link might incorporate fiber optic cables and repeaters to maintain communication integrity.
- Beyond monitoring and issuing commands, the operator interface provides the functionality to configure or modify various aspects related to control, protection, monitoring, and data logging within the Mark V system. However, access to these functions is protected by passwords, ensuring security and preventing unauthorized alterations.
- The operator interface offers several options to enhance its usability and functionality, including different monitor sizes, color printers, laser printers, and an audible alarm horn. These options allow customization and facilitate efficient operation based on user preferences and specific operational requirements. Additionally, the programs supplied on the interface computer enable operators to perform necessary configurations or modifications, providing flexibility and adaptability within the Mark V system.
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FREQUENTLY ASKED QUESTIONS
What is DS200GHDCF1CBG?
It is a GE Software EPROM Set designed and developed by GE
What components make up the primary operator interface of the Mark V system?
The primary operator interface consists of an IBM-compatible PC, a color monitor, a keyboard, and a cursor positioning device (touch screen, trackball, or mouse). Additionally, a printer is included as part of this setup.
What are the main functions of the operator interface in the Mark V system?
The operator interface enables operators to issue commands for controlling the unit, manage alarms, log data, and monitor the overall system operation. However, excluding the Plant Load Control option, it does not directly handle control or protection functions.
How are the operator interfaces connected to the Mark V control panel?
The operator interfaces connect to the Mark V panel via coaxial cables using the ARCNET LAN communication protocol. This connection, referred to as the Stage Link, allows seamless communication between the interfaces and control panel(s). For longer distances, fiber optic cables and repeaters may be integrated into the Stage Link for reliable communication.
