DS200LSTCF1ABC - Software PROM

SPECIFICATIONS

Part Number: DS200LSTCF1ABC
Manufacturer: General Electric
Series: Mark V
Product type: Software PROM
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

DS200LSTCF1ABC is a Software PROM designed and developed by GE. It is a part of the Mark V control system. The system utilizes triple-redundant 16-bit microprocessor controllers, ensuring high reliability and fault tolerance. Three independent controllers operate in parallel, with critical control and protection parameters being triple redundant and voted by all three processors. Critical control and protection parameters employ two-out-of-three voting redundancy, enhancing reliability by ensuring agreement among at least two out of the three redundant systems. SIFT technology is employed to enhance fault tolerance in software components, minimizing the impact of software failures and ensuring system reliability.

Operator interface functions

• Control:
  • Unit control: Enables control over the entire turbine unit.
  • Generator control: Facilitates control over generator operation or load.
  • Alarm management: Monitors and manages alarms generated by the turbine system.
  • Manual control: Allows manual adjustment of various parameters such as load setpoint, inlet guide vane position, isochronous control, fuel stroke reference, and auxiliary control.
  • Water wash: Initiates and controls the water washing process for turbine maintenance.
  • Mechanical overspeed test: Conducts mechanical overspeed tests as part of safety protocols.
• Data:
  • Provides access to various data points such as exhaust temperatures, lube oil temperatures, wheelspace temperatures, generator temperatures, vibration levels, timers, event counters, emission control data, and logical status.
  • Contracts in: Accepts external inputs or signals.
  • Relay out: Controls external relays based on system conditions.
  • Internal logic: Executes internal logic functions for control and monitoring purposes.
  • Demand display: Displays real-time demand or load requirements.
• Administrative:
  • Set time/date: Allows adjustment of system time and date settings.
  • Select scale units: Enables selection of measurement units for displayed data.
  • Display identification numbers: Identifies specific components or data points on the display.
  • Change security code: Manages access control through security code changes.
• Maintenance/Diagnostics:
  • Control reference: Provides reference information for system control.
  • Configuration tools: Tools for configuring system parameters and settings.
  • Tuning tools: Tools for fine-tuning system performance.
  • Constant change routines: Automated routines for continuous adjustment and optimization.
  • Trip display: Displays trip conditions or events.
  • Rung display: Displays logical control rungs.
  • Logic forcing: Forces specific logical conditions for testing or diagnostic purposes.
  • Diagnostic alarms: Alerts operators to diagnostic issues or abnormalities.
  • Diagnostic displays: Provides detailed diagnostic information for troubleshooting.
• Off-line/On-line:
  • System memory access: Accesses system memory for data storage and retrieval, both offline and online.

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FREQUENTLY ASKED QUESTIONS

What is DS200LSTCF1ABC?
It is a Software PROM designed and developed by GE

How are critical control and protection parameters ensured?
Critical control and protection parameters are triple redundant and voted by all three control processors, ensuring agreement among at least two out of the three redundant systems.

What is the significance of Software-Implemented Fault Tolerance (SIFT)?
SIFT technology minimizes the impact of software failures, enhancing fault tolerance and ensuring system reliability even in the presence of software issues.