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- IS215VCMIH1BB
- VME Communications Interface Module
- USA
- 330 × 20 × 178 mm
- 0.4 kg
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Product Overview
The GE IS215VCMIH1BB is a VME Communications Interface Module for the GE Mark VI turbine control system. The VCMI functions as a communication interface between the Mark VI controller and associated I/O boards while also providing access to the system control network.
The module operates as a VME bus master within the Mark VI control and I/O architecture. It manages data exchange between the controller, I/O boards, and other associated control hardware installed in the rack.
The IS215VCMIH1BB also interfaces with IONet, the communication network used within the Mark VI control architecture. Its communication and diagnostic interfaces support system operation, configuration, and maintenance activities.
The IS215VCMIH1BB is a revised VCMI assembly with B-rated functional revisions. Its full model designation should be used when matching replacement hardware to an existing Mark VI installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product | IS215VCMIH1BB |
| Product Type | VME Communications Interface Module |
| Functional Acronym | VCMI |
| Series | Mark VI |
| System | GE Speedtronic Mark VI |
| Board Type | 6U VME Board |
| VME Function | Bus Master |
| IONet Interface | 10Base2 Ethernet |
| Serial Interface | RS-232C |
| Parallel Interface | IEEE 1284 EPP Version 1.7 |
| Processor | Texas Instruments TMS320C32 32-bit DSP |
| PCB Coating | Conformal Coating |
| Dimensions | 330 × 20 × 178 mm |
| Weight | 0.4 kg |
Product Features
- VME communications interface for the GE Mark VI turbine control system.
- Functions as a VME bus master within the control and I/O racks.
- Provides communication between Mark VI controllers and I/O boards.
- Interfaces with the Mark VI IONet control network.
- Includes an RS-232C serial communication interface.
- Includes a parallel interface supporting EPP Version 1.7.
- Front-panel LED indicators support module status and diagnostic activities.
- Uses conformal-coated PCB construction for the Mark VI control environment.
- B-rated functional revisions distinguish this assembly from earlier VCMI versions.
Working Principle
The IS215VCMIH1BB operates as the communication bridge between the Mark VI controller, VME-based I/O boards, and the system control network.
Within the rack, the VCMI acts as the VME bus master and manages data transfers between the controller and connected I/O hardware. This allows process information collected by I/O boards to move toward the controller while control information can be distributed back through the rack.
The module also provides the connection to IONet. Through this network interface, the Mark VI control architecture exchanges information with the appropriate control-system elements.
The processor and associated communication hardware manage these data exchanges while the front-panel indicators provide status information that can be used during commissioning and troubleshooting.
Role in a Mark VI VME Control Architecture
| System Element | Role |
|---|---|
| Mark VI Controller | Executes turbine control and application logic |
| VME Backplane | Provides the internal communication path between installed boards |
| IS215VCMIH1BB | Acts as the VME communications interface and bus master |
| I/O Boards | Acquire field inputs and generate control outputs |
| IONet | Provides the Mark VI system control network connection |
| Terminal Boards | Provide field-side connections for turbine instrumentation and control devices |
| Engineering / Operator Interface | Supports configuration, monitoring, and diagnostics |
Industrial Applications
| Application | Typical Use |
|---|---|
| Gas Turbine Control | Internal communication between Mark VI control and I/O hardware |
| Steam Turbine Control | Supporting VME-based control-system data exchange |
| Power Generation | Maintaining communication within turbine control cabinets |
| Turbine Monitoring | Transferring process and diagnostic information between system modules |
| Control System Maintenance | Replacement of VCMI communication interface hardware |
| Legacy Mark VI Service | Maintaining established GE Speedtronic turbine control installations |
Installation and Maintenance
- Verify the complete IS215VCMIH1BB part number against the existing Mark VI system documentation before replacement.
- Confirm that the installed system uses the corresponding VCMI communication architecture.
- Remove power from the applicable Mark VI rack according to the plant maintenance and lockout procedures.
- Record the existing rack position and connected communication interfaces before removing the module.
- Inspect the VME backplane and module connectors for contamination, bent contacts, or mechanical damage.
- Use appropriate electrostatic discharge precautions when handling the circuit board.
- Install the replacement module into the correct VME rack position without forcing the backplane connectors.
- Confirm that the module is fully seated before restoring power to the rack.
- Check the front-panel status indicators after startup.
- Verify communication between the VCMI, controller, and associated I/O boards.
- Check for IONet, VME, or module communication alarms after the system returns to operation.
- Record the replacement part number, revision information, and commissioning results in the turbine control maintenance documentation.
Related Components
| Component | Function |
|---|---|
| Mark VI Controller | Executes turbine control and protection functions |
| Mark VI VME I/O Boards | Exchange process signals with the control system |
| VME Backplane | Provides internal board-to-board communication |
| IONet Network | Provides communication between Mark VI control-system elements |
| Terminal Boards | Interface field wiring with the turbine control system |
| Engineering Workstation | Supports configuration, monitoring, and diagnostics |
Recommended Related Models
| Model | Application / Relationship |
|---|---|
| IS215VCMIH1B | Earlier VCMI assembly in the Mark VI family |
| IS200VCMIH1B | Corresponding Mark VI VME communications interface board |
| IS215VCMIH2BB | Related VCMI communications interface assembly |
| IS215VAMBH1A | Mark VI acoustic monitoring card assembly |
| IS200VVIBH1C | Mark VI vibration monitoring-related board |
Key Advantages
- VME communications interface for GE Mark VI turbine control systems.
- Functions as a VME bus master for control and I/O communication.
- Provides IONet connectivity within the Mark VI architecture.
- Supports communication between controllers and I/O boards.
- Includes serial and parallel communication interfaces.
- Suitable for replacement and maintenance of established Mark VI systems.
Technical FAQs
What is the GE IS215VCMIH1BB used for?
The IS215VCMIH1BB is a VME Communications Interface Module used in GE Mark VI turbine control systems to manage communication between the controller, I/O boards, and the Mark VI control network.
What does VCMI mean on the IS215VCMIH1BB?
VCMI refers to VME Communications Interface. The module provides the communication interface and operates as a VME bus master within the Mark VI control and I/O architecture.
What communication interfaces are associated with the IS215VCMIH1BB?
The module includes an IONet 10Base2 Ethernet interface, an RS-232C serial interface, and a parallel interface supporting EPP Version 1.7.
What should be checked when replacing an IS215VCMIH1BB?
The complete part number and revision should be matched with the existing Mark VI configuration. The VME rack position, backplane connection, IONet connection, module status indicators, and communication diagnostics should be checked after installation.