IS215VCMIH2A - VME Bus Master Controller Board

SPECIFICATIONS:

Part Number: IS215VCMIH2A
Manufacturer: General Electric
Series: Mark VI
Product Type: VME Bus Master Controller Board
Technology: Surface Mount
Size: 17.8 cm wide x 33.02 cm
Common Mode Voltage Range: ±5 V
Operating temperature: 0 to 65 °C
Memory: Dual port
No.of Analog Voltage Inputs: 6
Repair: 3-7 Day
Weight: 2.00 lbs
Availability: In Stock
Country of Origin: United States
Manual: GEH-6421M

FUNCTIONAL DESCRIPTION:

IS215VCMIH2A is a VME Bus Master Controller Board manufactured and designed by General Electric as part of the VI Series used in GE Speedtronic Gas Turbine Control Systems. The VME Bus Master Controller (VCMI) board is the communication interface between the controller and the I/O boards, and the communication interface to the system control network, known as IONet. VCMI is also the VME bus master in the control and I/O racks and manages the IDs for all the boards in the rack and their associated terminal boards. Multiple I/O racks can be connected to the IONet, each rack with its own VCMI board. The following figure shows three simplex system configurations with local and remote I/O using the VCMI.

FEATURES:

• A VME bus master controller board offers several key features essential for managing communication and data transfer within a VME-based system:
• Bus Arbitration: The board facilitates bus arbitration, allowing multiple devices to contend for control of the bus. It manages the arbitration process to ensure fair access to the bus for all connected devices.
• Data Transfer Control: It controls the initiation and management of data transfers between devices on the VME bus. This includes supervising read and write operations, as well as handling burst transfers for efficient data movement.
• Interrupt Handling: The controller board manages interrupts generated by devices on the VME bus. It can prioritize interrupts, handle multiple interrupt requests simultaneously, and ensure timely response to critical events.
• Address Decoding: It includes circuitry to decode addresses on the VME bus, allowing the controller to identify which device is being accessed during read or write operations.
• Timing and Synchronization: The board ensures proper timing and synchronization of signals on the VME bus, coordinating data transfers and communication between devices with precise timing.
• Error Detection and Correction: It incorporates mechanisms for detecting and correcting errors that may occur during data transfer or communication on the bus, enhancing system reliability and data integrity.
• Bus Mastering Capabilities: As a bus master, the controller board can initiate transactions on the VME bus independently, enabling efficient utilization of bus bandwidth and optimizing system performance.

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FREQUENTLY ASKED QUESTIONS:

What is a VME bus master controller board?

A VME bus master controller board is a circuit board used in computer systems and industrial applications to control communication and data transfer on the VME bus. It serves as the central controller for managing the flow of data between devices connected to the VME bus.

What are the key features of a VME bus master controller board?

Key features include bus arbitration, data transfer control, interrupt handling, address decoding, timing and synchronization, error detection and correction, bus mastering capabilities, compatibility with VME standards, scalability, and diagnostic and monitoring features.

Where are VME bus master controller boards used?

VME bus master controller boards are commonly used in embedded systems, industrial automation, telecommunications, scientific instrumentation, and other applications where high-speed data transfer and reliable communication are required.