IS215VCMIH1B - VME Communications Interface Master Controller Board

TECHNICAL SPECIFICATIONS:

Part Number: IS215VCMIH1B
Manufacturer: General Electric (GE)
Series: Speedtronic Mark VI
Product Type: VME Communications Interface Master Controller Board
Form Factor: Single-Slot 6U VME Board
Processor: Texas Instruments TMS320C32 32-bit DSP
Network Connectivity: 1 × IONet 10Base2 Coaxial Port (BNC)
Serial Interface: 1 × RS-232C Serial Configuration Port
Status Indicators: Run, Fail, Status, Module Diagnostic (8, 4, 2, 1), and Network (TX, RX, CD) LEDs
Reset Feature: Front-Panel Pushbutton Reset Switch
Conformal Coating: Yes
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% Non-Condensing
Availability: In Stock
Repair Lead Time: 3-7 Days
Country of Origin: United States
Manual Reference: GEH-6421H

FUNCTIONAL DESCRIPTION OF IS215VCMIH1BL:

The IS215VCMIH1B is a VME Communications Interface Master Controller Board designed and manufactured by General Electric as part of the Speedtronic Mark VI control system series. The VCMIH1B board in the control and interface module communicates internally with the I/O boards in its rack and to the other VCMI cards through the IONet. There are two versions, one with one Ethernet IONet port for simplex systems, and the other with three Ethernet ports for TMR systems. Simplex systems have one control module connected to one or more interface modules using a single cable.

The VCMIH1B with three separate IONet ports is used in TMR systems for communication with the three I/O channels Rx, Sx, and Tx, and with the two other control modules. This is shown in the following figure. Software Implemented Fault Tolerance (SIFT) voting is implemented in the VCMI board. Input data from each of the IONet connections is voted in each of the R, S, and T VCMI boards. The results are passed to the control signal database in the controllers (labeled UCVx in the diagram) through the backplane VME bus.

CONTROL MODULE:

The control module is available as an integrated control and I/O module, or as a stand-alone control module only. The integrated control and I/O rack can be either a 21-slot or 13-slot VME size. The 13-slot rack can accommodate all the boards for control of a small turbine. The backplane has P1 and P2 connectors for the VME boards. The P1 connectors communicate data across the backplane, and the P2 connectors communicate data between the board and 37-pin J3 and J4 connectors located directly beneath each board. Cables run from the J3 and J4 connectors to the terminal boards. There can be one control module (simplex) or three triple modular redundant (TMR) control modules. Each of these configurations supports remote I/O over IONet. The simplex control modules can be configured to support up to three independent parallel IONet systems for higher I/O throughput. Multiple communication boards may be used in a control module to increase the IONet throughput.

INTERFACE MODULE:

The interface module houses the I/O boards remote from the control module. The rack, shown in the following figure, is similar to the control module VME rack, but without the controller, interface board VDSK, and cooling fan. Each I/O board occupies one or two slots in the module and has a backplane connection to a pair of 37-pin D connectors mounted on an apron beneath the VME rack. Cables run from the 37-pin connectors to the terminal boards. Most I/O boards can be removed, with power removed, and replaced without disconnecting any signal or power cable. Communication with the module is via a VCMI communication board with a single IONet port, located in the left slot. The module backplane contains a plug wired to slot 1, which is read by the communication board to obtain the identity of the module on the IONet.

WHY BUY FROM WOC

World of Controls keeps an extensive inventory of genuine OEM replacement components for GE Speedtronic Mark VI turbine control systems. The VME Communications Board is available in both UNUSED surplus and fully REBUILT conditions, covered by comprehensive warranty protection. Every board is fully inspected and functionally tested in our laboratory to verify processor operation, VME bus arbitration, memory integrity, and IONet transmission accuracy before dispatch. We also provide rapid component-level repair and board exchange options to assist power generation facilities in preventing downtime. Contact our sales team today to check live stock, request a quote, or arrange prompt global shipment.

FREQUENTLY ASKED QUESTIONS

What is the GE IS215VCMIH1B?

The GE IS215VCMIH1B is a VME Communications Interface (VCMI) Master Controller Board used in GE Speedtronic Mark VI turbine control systems. It manages internal VME backplane communications, tracks rack board IDs, and provides an interface to the IONet system control network.

What is the difference between the H1B and H2C versions of the VCMI board?

The H1B version (like the VCMIH1B) features a single 10Base2 IONet port on the front faceplate and is designed for simplex control racks. The H2C version features three IONet ports to support Triple Modular Redundant (TMR) control architectures.

What functions do the diagnostic LEDs on the VCMIH1B serve?

The front faceplate LEDs display the board operational state (Run, Fail, Status), module error and boot codes via binary LEDs (8, 4, 2, 1), and live network transmission activity (TX, RX, CD).

Does the Controller board require special software configuration during replacement?

When installed, the board reads board identification data and firmware parameters stored in system memory. ToolboxST software is typically used to configure and audit module IDs across the Mark VI rack.

Can World of Controls test or repair my existing Interface Controller Board?

Yes. World of Controls offers complete diagnostic testing, component-level repair, and re-certification services for GE Mark VI VCMI boards. Contact us to arrange repair evaluation, turnaround estimates, or immediate exchange options