GE VMIVME-4116 Analog Output Board

GE VMIVME-4116 Analog Output Board

INTRODUCTION

The VMIVME-4116 Digital-to-Analog Converter (DAC) Board performs digital-to-analog conversion on 16-bit positive true offset binary or two’s complement coded words, with an analog output range of -10 to +10 V.  This provides for a resolution of 305 µV for each digital input of 1 LSB change.  The buffered output voltage settles to within 1/2 LSB in 10 µs. The DAC offers a Digital-to-Analog Integrated Circuit (IC) per channel.  A Control and Status Register (CSR) is loaded by the processor and this register controls the functioning of the board.  The CSR can be read by the processor at any time.  The VMIVME-4116 board functional block diagram is shown in Figure 1.  Each of the eight DACs is preceded by double-buffered data latches.   The data latches allow versatility in the way the DAC analog output may be updated.

PRODUCT DETAILS

 • 8 channels 

 • 16-bit DACs 

 • Fast settling: 10 µs maximum to ±0.003 percent of FSR 

 • Buffered voltage output (±10 V at 5 mA) 

 • Multiplexed programmable outputs on P2 connector for testing analog outputs 

 • Double-buffered data latches 

 • Jumper-selectable synchronized update control 

 • Selectable external update control input or software-controlled strobe provides single update strobe for all DAC outputs 

 • Front panel fail LED 

 • High reliability DIN-type output connector 

 • Outputs set to 0.0 V on power up — Outputs are automatically disconnected from the field at power up 

 • Double Eurocard form factor 

 • Supports VMIC’s analog expansion and Built-in-Test bus (AMXbus™) that interconnects the P2 connectors of various VMIC ADC and DAC boards and expansion multiplexer boards 

 • Multiplexed programmable outputs for testing analog input multiplexer boards — Requires VMIC ADC board and AMXbus for Built-In-Test

Technical features

8-channel 16-bit DAC:

Provides eight independent 16-bit digital to analogue converters (DACs), each with high accuracy and fast build-up times.

Resolution up to 305µV (analogue voltage value per LSB change).

High accuracy and fast build-up time:

The output voltage of the DACs can be stabilised to within ±0.003% of full scale range (FSR) within 10µs.

Buffered output voltage range of ±10V (at 5mA).

Programmable Outputs and Multiplexing:

Multiplexed programmable outputs are provided on the P2 connector for testing analogue outputs.

Multiple output configurations and programming options are supported for easy customisation to meet actual requirements.

Double Buffered Data Latching:

Double buffered data latches are provided on the front of each DAC, allowing the analogue outputs of the DAC to be updated in a flexible manner.

Jumper-selectable synchronous update control and optional external update control inputs are provided.

Front Panel Fault LED:

A front panel fault LED is provided to indicate the presence of a fault on the board.

Highly reliable DIN-type output connectors are provided.

VMEbus Compatible:

Compatible with the VMEbus specification and supports short I/O access.

Address modifier bits are jumper selectable to support unprivileged short I/O or monitored short I/O access.

Expandability and Integration:

Support for analogue expansion of VMICs and the built-in test bus (AMXbus) allows interconnection of various VMIC ADC and DAC boards as well as expansion multiplexer boards.

Can be used in combination with other VME modules to achieve more complex system functions.

C. VMIVME-4116 analogue output boards are widely used in various industrial automation fields that require high precision analogue output, including but not limited to:

Process control: for precise control of various devices and sensors on factory production lines.

Data Acquisition and Analysis: To acquire and analyse analogue signals in the production process, such as temperature, pressure, flow, etc.

Test and Measurement: for testing and measuring analogue output signals in the system to ensure the accuracy and stability of the system.

Industrial automation system integration: Integration with other automation equipment and systems, such as PLC, DCS, etc., to achieve more efficient production and management.

Product Advantages

High precision and fast response: Provide high precision and fast build-up analogue output to meet various high-precision application requirements.

Flexibility and programmability: Supporting a variety of output configurations and programming options, it is convenient for users to customise and expand according to actual needs.

High reliability and stability: High-quality materials and manufacturing processes are used to ensure stable operation in harsh industrial environments.

Compatibility and Integration: Compatible with VMEbus specification, easy to connect and integrate with other VMEbus devices.