DS200ADCIF1A - IC Chip Prom Se

SPECIFICATIONS

Part Number: DS200ADCIF1A
Manufacturer: General Electric
Country of Manufacture: United States (USA)
Series: Mark V
Function: IC Chip Prom Set

Functional Description

DS200ADCIF1A is an IC Chip Prom Set developed by GE. It is part of the GE Speedtronic Mark V control system. Designed to provide reliable data storage and program execution, this chip set plays a critical role in the functionality of the Mark V control system, which is widely used for monitoring, control, and protection of industrial gas turbines. The PROM (Programmable Read-Only Memory) stores essential firmware and configuration data required for turbine operations and diagnostics, ensuring consistent and efficient performance of the control system.

System Software Configuration

• The software configuration within the GE Speedtronic Mark V control system has been significantly enhanced through advanced methods of implementing Triple-Modular Redundancy (TMR), with a particular emphasis on SIFT (Software Implemented Fault Tolerance) technology. These improvements result in a more robust, fault-tolerant, and reliable control architecture, crucial for industrial turbine operations.
• At the core of this configuration is SIFT, a technology that enables high-integrity communication and comparison across the three independent controllers designated as R, S, and T, along with the C (Communications) controller. SIFT facilitates direct information exchange via the voter link, allowing each controller to not only process its own sensor data but also compare it with the data from the other controllers.
• Each control processor independently reads and digitizes all of its input signals from various sensors. These sensor signals are converted into numerical values that are stored in a local table of values within each controller. In addition to sensor readings, each controller includes critical internal state outputs—such as integrators and control setpoints like the load setpoint—in the same table.
• Once the local table is compiled, the controller transmits this data to the other processors over the voter link. For example, the R controller sends its table to both the S and T controllers and simultaneously receives the corresponding tables from them. This mutual exchange of information enables each controller to perform a voting algorithm, comparing the values of the same variables across all three tables to detect discrepancies or faults.
• This process ensures fault masking and consensus-based control decisions, which are critical for maintaining system integrity even if one controller experiences a fault. As a result, the system can continue to operate reliably, often without interruption, reinforcing the Mark V's reputation for high availability in mission-critical turbine applications.

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FREQUENTLY ASKED QUESTIONS

What is DS200ADCIF1A?
It is an IC Chip Prom Set and is part of the GE Speedtronic Mark V gas turbine control system.

What happens if one of the controllers gives an incorrect value?
With the voting algorithm, if one controller provides an inconsistent or incorrect value, it is outvoted by the other two. The system continues to function normally, ensuring fault masking without immediate failure.

What role does the C controller play in this setup?
The C controller manages communications, including human-machine interface (HMI) operations, alarms, and logging. While it doesn't participate directly in control voting, it plays a crucial role in monitoring and diagnostics.