IS215UCVEM09A - Standard Controller

IS215UCVEM09A - Standard Controller IS215UCVEM09A - Standard Controller

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Part Number: IS215UCVEM09A
Manufacturer: General Electric
Series: Mark VI
Operating System: QNX
Microprocessor: Intel Celeron 300 MHz
Programming: Control block
Product Type: Unit Controller Board
Availability: In Stock
Country of Manufacture: United States (USA)


IS215UCVEM09A is a standard controller manufactured and designed by General Electric. It is a single-slot board using a 300 MHz Intel Celeron processor with 16 MB of flash memory and 32 MB of DRAM. A single 10BaseT/100BaseTX (RJ-45) Ethernet port provides connectivity to the toolbox or to other control devices. The controller is installed on a Versa Modular Euro (VME) rack and communicates with I/O boards via the VME bus. Some board types also support local I/O via PCI Mezzanine Card (PMC) daughterboards. QNX, a real-time, multitasking OS designed for high-speed, high-reliability industrial applications, serves as the controller Operating System (OS). The Control System Toolbox is used to load software specific to the controller's application (toolbox). Three communication ports allow access to the operator and engineering interfaces.

IS215UCVEM09A Operation

  • Software specific to the controller's use with steam, gas, land-marine aeroderivative (LM), or balance of plant (BOP), products is put onto it. If the collection of blocks is normal and the blocks are of average size, it can execute up to 100,000 rungs or blocks every second.
  • The controller can synchronize to the clock on the VCMI communication board to within 100 microseconds with the aid of an external clock interrupt. The VCMI communication board uses the VME bus to send and receive external data to and from the control system database (CSDB) in the controller.
  • The process inputs and outputs from the I/O boards make up the data in a simplex system. The inputs from the input boards, singular inputs from simplex boards, computed outputs to be voted by the output hardware, and the internal state values that need to be exchanged between the controllers make up the data in a TMR system.


  • The component is compatible with the Mark VI control system. It is a VME board with a single slot. The controller has two serial RS-232C ports, an Ethernet port, and connectors for a keyboard or mouse as well as a monitor. The board includes a high-speed processor, flash memory, and DRAM.
  • This board receives external data via the VCMI communications board. Depending on the system, data may be delivered to the board via process I/O (simplex) or voted I/O. (TMR.)

Product Components

  • Monitor port
  • Keyboard/mouse port
  • COM1 - RS-232C port for initial controller setup COM2 RS-232C port for Modbus serial communication
  • ETHERNET 1 - Primary Ethernet port for EGD communication and Toolbox configuration
  • Status LEDs - VMEbus SYSFAIL, Flash Activity, Power Status
  • Ethernet Status LEDs - Active (Blinking = Active), (Solid = Inactive), Link (Yellow = 10BaseT), (Green = 100BaseTX)
  • DLAN COM 20020 controller ARCNET interface

DLAN interface

  • COM 20020 ARCNET controller, BNC 93 ohm, transfer rate - 5 Mbps


  • Bus Arbitration: The controller card manages bus access and arbitration among multiple modules connected to the VMEbus. It ensures that only one module has control of the bus at a given time.
  • Interrupt Handling: It supports interrupt requests from VMEbus devices and manages their priority and response. Interrupts are important for real-time applications that require immediate attention to certain events or data.
  • Data Transfer Control: Handles data transfers between the VMEbus and other devices, such as memory, input/output (I/O) devices, or other bus systems. It provides the necessary control signals and protocols for efficient and reliable data exchange.
  • Timing Generation: Generates timing signals required for the proper operation of the VMEbus. These signals include clock signals, bus cycle timing, and bus control signals.
  • Protocol Support: VME controller cards typically support various VMEbus protocols, such as VME64x, VME320, or VME64. These protocols define the electrical and logical specifications for data transfer, addressing, and timing on the VMEbus.
  • Backplane Connectivity: The controller card plugs into a VMEbus backplane, which serves as the physical connection between multiple modules in a computer system. The card is designed to fit into a specific VMEbus slot and connects to the backplane via edge connectors.

Power requirements

  • +5 V dc, 6.6 A typical, 8.6 A maximum
  • +12 V dc, 180 mA typical, 250 mA maximum
  • -12 V dc, 180 mA typical, 250 mA maximum


  • Primary Ethernet interface: Twisted pair 10BaseT/100BaseTX, RJ-45 connector
  • Memory: 32 MB DRAM, 16 MB compact flash module, 128 KB L2 cache, Battery-backed SRAM
  • PROFIBUS interface: PROFIBUS DP master class 1
  • COM ports: Two micro-miniature 9-pin D connectors

System Features

  • Small turbine speed control systems necessitate a simplified system architecture.
  • Simplex control is used to save money and space. Instead of the larger T-type terminal boards used on TMR systems, compact DIN-rail mounted terminal boards are available. Since the D-type terminal boards connect directly into the control chassis to interface with the I/O boards, IONet is not used.

WOC has the largest stock of GE Distributed Gas Turbine Control System Replacement Parts. We can also repair your faulty boards. Our team of experts at WOC is happy to assist you with any of your automation requirements. Contact us for pricing and availability on any parts and repairs.


What is IS215UCVEM09A?
It is a standard controller manufactured and designed by General Electric.

What type of connectivity does the UCVE provide?
The board provides a single 10BaseT/100BaseTX (RJ-45) Ethernet port for connectivity to the toolbox or other control devices.

How is the configuration of the secondary Ethernet port performed?
Configuration of the secondary Ethernet port is performed through the toolbox.

How does the controller validate its toolbox configuration?
The controller validates its toolbox configuration against the existing hardware each time the rack is powered up.

Why does the controller need a separate subnet address?
A separate subnet address allows the controller to uniquely identify an Ethernet port.