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GE IS215VCMIH2C｜VME Bus Master Controller Board｜
Bus Master Station Management
Acts as the VME bus master controller
Responsible for:
Board ID allocation
System arbitration and bus control
Coordinates data exchange among:
Backplane I/O modules
Expansion rack I/O
I/O backup modules
Triple Modular Redundant (TMR) control modules
IONet Communication Gateway
Equipped with three 10Base2 coaxial ports
Direct connection to the IONet system control network
Enables real-time data forwarding between:
Main controller
Distributed I/O modules
Ensures deterministic and synchronized communication, critical for turbine control applications
Diagnostics and Monitoring
Integrated monitoring of power rails:
+5 V
+12 V
+15 V
+28 V
Built-in ground fault detection
Front-panel features:
Status indicator LEDs (power, communication, fault)
Manual reset switch
Supports rapid fault identification and system troubleshooting
Real-Time Data Forwarding
Dedicated DSP processor
Guarantees deterministic data frame forwarding with a 10 ms cycle
Meets strict real-time and synchronization requirements of turbine control systems
Single-Slot Integrated Architecture
6U VME single-slot design
Integrates:
Bus master control
IONet network interfaces
Diagnostic and monitoring functions
Benefits:
Simplified system architecture
Reduced hardware complexity
Improved serviceability and maintenance efficiency
Interfaces and Configuration
Input Interfaces
VME bus interface (backplane master station)
Power input interface
IONet expansion interface
Output Interfaces
3 × 10Base2 coaxial network ports
RS-232C debugging port
Status indicator LEDs:
Power
Communication
Fault
Manual reset button
Configuration and Engineering
Configuration Software: GE Toolbox ST
Required configuration parameters:
VME bus settings
IONet node ID
Communication frame rate
DSP operating parameters
GE IS215VCMIH2C｜VME Bus Master Controller Board｜
Features:
Automatic bus and network configuration verification at power-up
Ensures correct initialization and reliable system operation
Application Scope
GE turbine control systems (Mark V / Mark VI architectures)
Triple Modular Redundant (TMR) control platforms
High-availability, real-time distributed I/O systems for critical turbine applications
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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