Functions

– 64-bit differential or high voltage digital inputs

– Each group of 32 inputs can be monitored by jumper selection:

Contact closure, voltage source, current sink, or differential signal.

– Open provides logic zero dcs-sis.com or (jumper selectable) logic one.

– Input filter options

– On-board built-in test logic

– Front panel with fault LEDs

– Front panel with fault LEDs for fault detection and isolation

– User selectable input voltage thresholds (1.25 to 66V)

RS422/RS485-compatible differential line receiver provides ± 7V noise immunity

– 8-, 16-, or 32-bit data transmission

– Dual Eurocard form factor

– High-reliability DIN-type I/O connectors

– Compatible with GE Fanuc Embedded Systems’ family of intelligent I/O controllers (901x and 906x series)

– Boot Replacement Option

– Software compatible with VMIVME-1110

Functional Features

Compatibility: Compatible with VMEbus specification. Double height form factor.

Input Connector Type: Dual 64-pin connector – DIN 41612

Input/Output Organization Eight input ports; eight bits wide. Addressable to any address within the short-circuit monitor and/or short-circuit unprivileged I/O map. Control and Status Register (CSR) addresses are independently selectable.

Addressing Scheme: Each of the eight ports can be addressed on 8-, 16-, or 32-bit boundaries. One CSR can be addressed on 8-bit boundaries. 13 jumpers provide unlimited short data I/O address mapping options.

Differential Signal Input Characteristics: Common Mode Input Voltage Range: -30 to +66 V. Common Mode Input Voltage Range: -7 to +12 V. Input Sensitivity ± 100 mV. High Input Impedance (33 kΩ).

Single-Ended Signal Input Characteristics: High input impedance (33kΩ). Threshold accuracy of 1% (typical) over the entire 66V range.

Signal Conditioning Input Filter Terminator Option: The board can be ordered with an input signal filter circuit.

For differential inputs, the circuit consists of a series resistor and capacitor connected across the signal input. For single-ended inputs, the circuit provides an input dither filter with a user-selectable time constant.

Built-in Test: The board is designed with internal self-test logic to test all active components.

Special output registers are provided to generate 16-bit data words for worst-case bit patterns to be used as health tests during real-time or off-line operation.

A special test mode bit in the CSR enables the output test register to drive a differential receiver.

The front panel fault LED illuminates at power-up and can be programmed to go out after successful completion of user-defined diagnostics.

-64 optically coupled digital inputs

-5 V to 48 VDC input range

-High isolation, 1.000 V continuous, 7.500 V pulse voltage

-Filter input options

-Dual I/O connectors

-Contact closure sensing

-Voltage or current source input options

-Positive or negative true input options

-Dual Eurocard form factor with front panel

8-bit or 16-bit data transfer

-Unprivileged or supervisory I/O access

-Highly reliable DIN-compatible input connectors

Functional Features

Board Features:

This 64-bit optically coupled digital input board is designed and optimized for the VME bus.

The VMIVME-1150 is highly isolated and provides a flexible, low cost, high noise immunity 8-byte digital input port. The functional block diagram is shown below.

Compatibility:

The VMIVME-1150 is a standard double height printed circuit board that is electrically and mechanically compatible with the VME bus.

Input Organization:

Eight input ports, each eight bits wide. The ports are organized as eight consecutive 8-bit read-only registers.

Addressing Scheme:

Each 8-bit port is individually addressable anywhere within an 8-bit or 16-bit boundary.

Short-circuit monitoring or short-circuiting anywhere within unprivileged I/O space.

Board Address:

The board address is selected by the on-board DIP switches. Runs in any available slot on the VMEbus backplane except slot 1.

VMEbus Access:

The address modifier bits are decoded to support short supervised or unprivileged short I/O access. A jumper is provided to support this option. The board is factory configured for short supervised I/O access.

VME Bus Reply:

The DTACK reply is a response to a data select (DS0 or DS1) and the decoded board address.

Board Address.

Data Transfer Type:

D8. D16

Access Time

Maximum 250 milliseconds

Data Polarity

Sorted by positive or negative true. This depends on the input assertion of the board. To assert an input, current must flow through the LED in the optocoupler.

For positive “true” boards, this current will indicate a logic “1” to the VME bus. If the board is ordered with negative true logic, the board will display a logic zero to the VMEbus when current is flowing through the LED.

Input Characteristics

Signal Conditioning:

The input can be either a voltage or current source with a voltage range of 5 to 48 V. The input can be either a voltage or current source with a voltage range of 5 to 48 V.

Hardware Tips and Specifications

This IS215AEPAH1A Alternative Energy Power Assembly may be best understood when its hardware elements are contextualized according to the intended function of this printed circuit board.

The first descriptor for the function of this AEPA-abbreviated product is present in its functional description as an alternative energy power supply assembly.

This functional description happens to be an exact match to the AEPA functional acronym for this product, a rare blessing for a specialized Mark VIe series product.

The series to which this IS215AEPAH1A board belongs actually provides additional insight into the functionality of this product.

Considering the place of the IS215AEPAH1A dcs-sis.com PCB in the Mark VIe family of wind turbine control systems, it is not surprising that this GE Energy board is dedicated to wind turbine applications.

Now that the functional status of this IS215AEPAH1A PCB as an alternative energy power supply assembly has been described.

Then it is possible to highlight some of the hardware specifications available for this Mark VIe wind turbine series product.

Considering this product’s place in the specialized and recently developed Mark VIe wind turbine family, little original product-specific instruction manual material detailing the hardware of this IS215AEPAH1A PCB exists online.

That said, this initial Mark VIe series label identifies the board as an alternative energy power supply assembly with special component versions.

This IS215 series label has dual naming capabilities for this IS215AEPAH1A product; it also outlines its status as a domestic GE printed circuit board.

The original manufacturing location of this PCB can be traced more specifically to GE’s plant location in Salem, Virginia.

In this IS215AEPAH1A part number, the IS215 series label is followed by an example of the AEPA functional acronym.

It is itself followed by the H1 series grouping label, which, like the IS215 series label mentioned earlier, provides a dual naming convention for this product.

This H1 grouping label indicates that the product is a conformal coated printed circuit board with Mark VIe series grouping.

While the conformal style of PCB coating specific to this power supply assembly is well documented, given its widespread use on General Electric circuit boards, the first Mark VIe grouping of this part is the Mark VIe grouping.

The true meaning of the first set of Mark VIe series alignments for this component has been lost.

The last A digit of the IS215AEPAH1A part number is a reference to a Class A functional revision of this part, which may significantly affect the performance specifications and original measured dimensions of this IS215AEPAH1A product.

Functional Description

The IS215VCMIH2CC is a GE-developed bus master controller module that is part of the Mark VI control system.

It is part of the Mark VI control system.The VCMI bus master controller plays a key role in the system architecture as an integrated communications interface that coordinates the exchange of data and commands.

As the link between the master dcs-sis.com controller and the array of I/O boards, the VCMI ensures smooth and efficient communication channels and facilitates seamless integration of the various components.

In addition, VCMI’s importance is reflected in its connection to the wider system control network, known as the IONet, which plays a vital role in coordinating communications across the network infrastructure.  

Features

A distinctive feature of the VCMI is that it acts exclusively as a VMEbus master within the control and input/output racks.

The VCMI is responsible for the VMEbus, a standardized computer bus structure, and oversees the coordination of data transfer and control signals within these racks.

The VCMI manages the assignment of unique identification (ID) to all boards in the rack and their associated terminal boards.

This ID management function ensures that the various components within the rack are identified and interacted with in a systematic and organized manner, thereby increasing the overall efficiency and reliability of the system.

The VCMI Bus Master Controller is a multifaceted communications hub that seamlessly connects controllers, I/O boards and the broader system control network.

As a VME Bus Master Controller in a given rack, it enhances its ability to manage and optimize the flow of information, ultimately improving the performance and cohesiveness of the integrated system.

Board Type: 6U High VME Boards

The boards specified are classified as 6U High VME boards and are dimensioned to meet the widely adopted VME standard. At 6U high, the boards conform to a standard form factor and are compatible with a range of systems and platforms that meet the same specifications.

At 0.787 inches wide, this VME board integrates seamlessly into the VME chassis, contributing to the modularity and scalability of the overall system.