IS215ACLIH1A | General Electric PCB Mark VI

The IS215ACLIH1A is a Printed Circuit Board (PCB) designed by General Electric as a component of the Mark VI Turbine Control System. This board functions specifically as an Application Control Layer Module within the system, contributing to the overall management and control of industrial turbines. As part of the Mark VI system, which is one of the final Speedtronic systems offered by General Electric, the IS215ACLIH1A supports a wide range of turbine sizes and applications, from small-scale to large industrial setups.

This module operates with a 486 type processor, forming the core of its microprocessor-based master control functionality. The IS215ACLIH1A board utilizes several types of communication networks, including Ethernet and ISBus, ensuring versatile connectivity and integration within different configurations of the Mark VI system. The use of these communication protocols allows the module to effectively interact with other components of the control system, facilitating robust and reliable control operations.

The IS215ACLIH1A can be installed in either EX2100 exciter board racks or within a standard Innovation series drive, showcasing its adaptability and compatibility with various setups. This flexibility makes it suitable for different applications and configurations, enhancing the overall utility of the Mark VI system.

The physical design of the IS215ACLIH1A includes a front faceplate equipped with several interface options. The faceplate features two COM ports, providing serial communication capabilities, and one Ethernet port, which enables high-speed data transfer and connectivity. Additionally, the faceplate includes two ISBus ports, each accompanied by two LED indicators that provide visual status feedback. These ports allow for reliable and efficient data communication between the module and other system components.

Furthermore, the faceplate is equipped with a reset switch, facilitating easy system resets and troubleshooting. There are also four primary LED indicators labeled OK, Active, ENET, and Flash, along with eight additional status LEDs, which provide critical operational feedback and diagnostic information. These LEDs serve as visual indicators, offering immediate feedback on the module's operational state and aiding in maintenance and monitoring activities.

The IS215ACLIH1A board is designed with two set screws located on the faceplate, ensuring secure installation and stability within the rack or drive. These screws lock the unit in place once installed, minimizing the risk of dislodgement or vibration-related issues during operation.

In terms of internal architecture, the IS215ACLIH1A features a comprehensive array of memory and processing components. It includes a 128 KB L2 Cache controlled by a PCI controller, ensuring efficient data handling and processing speed. The module is also equipped with 1 MB of BIOS, 8 MB of DRAM, and dual-ported RAM, supporting robust data storage and processing capabilities. These memory components are crucial for the module's operation, enabling it to store and execute control algorithms and instructions effectively.

The board's design incorporates a bus target interface and reset switch logic, enhancing its capability to manage various operational states and conditions. A flash memory device is included, providing non-volatile storage for firmware and critical data, ensuring that the module retains its programming and configuration even during power loss.

Additionally, the IS215ACLIH1A is built with a PCI/ISA bridge connected to the PCI controller, facilitating seamless communication between different system components and enhancing the module's integration within the broader Mark VI system. This design choice supports compatibility and communication across various bus architectures, further extending the module's versatility and application range.

In summary, the IS215ACLIH1A PCB by General Electric is a critical component of the Mark VI Turbine Control System, designed for efficient control and management of industrial turbines. With its robust processor, versatile communication capabilities, and comprehensive memory architecture, the IS215ACLIH1A ensures reliable performance and adaptability in various industrial settings, making it a valuable asset in turbine control applications.