Diamond Systems RUBY-MM-1612 user manual Analog Output Range Configuration, Full-Scale Voltage

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4. ANALOG OUTPUT RANGE CONFIGURATION

Refer to the Drawing of Ruby-MM-1612 on Page 8 for locations of headers described in Sections 3 and 4. Refer to Figure 4.1 on Page for an explanation of the voltage reference circuitry. Also refer to Table 4.1 for a quick guide to output range configuration and jumper settings.

Header J4 is used to configure the analog outputs. Four items are configurable: (1) On-board reference full-scale voltage, (2) D/A full-scale voltage, (3) unipolar / bipolar select, and (4) adjustable reference voltage. Items 2 and 3 in turn are configured separately for each bank of 8 analog output channels.

On-Board Reference Full-Scale Voltage Selection

An on-board reference voltage generator provides a +5.000V full-scale voltage output. This voltage is used as the basis for all on-board full-scale output ranges. This +5 reference drives an operational amplifier, from which the fixed references are derived. The gain of this amplifier is normally set to 1, so that its output is also +5.000V. However, you can change the gain to 2 so that the output is +10.00V. For an output of +5V, install a jumper in location 5 in header J4. For an output of +10V, remove the jumper from this location. The output of this amplifier is used to generate the full-scale voltages for both bipolar and unipolar output ranges.

D/A Full-Scale Voltage

The full-scale voltage defines the full output range capability of the analog outputs. Locations F A on header J4 are used to select the full-scale voltage. Each bank of eight channels has its own selection pins for full-scale voltage. Thus each bank of eight channels may be configured differently. Install only one jumper in these locations for each bank of channels. Position F is for the Full-scale voltage (5V or 10V depending on the jumper in position 2, explained above). This is the default setting. Position A is for the Adjustable reference voltage (see section 4.4).

Unipolar / Bipolar Output Range

Unipolar output ranges are positive voltages only (for example 0 - 5V), while bipolar output ranges include both positive and negative voltages (for example ±5V). To select unipolar outputs, install a jumper in position U on J4. to select bipolar outputs, install a jumper in position B. Install only one jumper in these locations for each bank of channels.

Adjustable Reference Voltage

One full-scale voltage range is adjustable by the user. It is preset to 2.5V (for both 0-2.5V and ±2.5V ranges), but may be set anywhere between 0V and 2.5V. To adjust this voltage, apply a voltmeter to the top pin of header J4 underneath either A mark and turn the screw on potentiometer R4 (the fourth from the left / second from the right in the row of blue potentiometers at the top of the board) until the voltmeter reads the desired voltage.

Copyright 2001 Diamond Systems Corp.

Ruby-MM-1612 User Manual V1.1 P. 6

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Contents RUBY-MM-1612 Table of Contents Description Signal Name Definition O Header PinoutBoard Configuration Base Address Configuration Header J5 Position Hex DecimalBase Address On-Board Reference Full-Scale Voltage Selection Analog Output Range ConfigurationAdjustable Reference Voltage Full-Scale VoltageAnalog Output Configuration Header J4 Range RUBY-MM-1612 Board Drawing Reset information Ruby-MM-1612 I/O MapBase + Write Function Read Function Base + 0, Write DAC LSB register Base + 0 or 1, Read Update DACsRegister Definitions Base + 1, Write DAC MSB registerBase + 3, Write External trigger register 82C55 Register Map Configuration Register82C55 Digital I/O Chip Operation DefinitionsAnalog Output Ranges and Resolution Full Scale 1LSBFull Scale 10. D/A Code Computation Offset Binary Coding for bipolar output ranges LSB = 1/2048 x Full-Scale VoltageOutput Code Explanation Output Voltage for ±5V Range HOW to Generate AN Analog Output Hardware Update CommandTo generate an analog output on one or more channels Examples Single channel output Two channel outputCalibration Procedure Specifications MiscellaneousDescription FeaturesOrdering Information PinoutsFunctional Diagram 82C55A Pin DescriptionRead/Write and Control Logic 82C55A Functional DescriptionData Bus Buffer Group a and Group B ControlsOperational Description Mode Selection82C55A Ports A, B, and CInterrupt Control Functions Single Bit Set/Reset Feature FigureOperating Modes Inte Flip-Flop DefinitionMode 0 Basic Input Mode 0 Basic OutputMode 0 Configurations Control Word #4 Control Word #8 Input Control Signal Definition STB Strobe InputIBF Input Buffer Full F/F Output Control Signal Definition Intr Interrupt RequestOutput Operations Mode 2 Strobed Bi-Directional Bus I/OBi-Directional Bus I/O Control Signal Definition Input OperationsMode Control Word Mode 2 Combinations Special Mode Combination Considerations Current Drive CapabilityApplications of the 82C55A Reading Port C Status Figures 15

RUBY-MM-1612, 16-Channel 12-Bit Analog Output PC/104 Module specifications

The Diamond Systems RUBY-MM-1612 is a versatile 16-channel 12-bit analog output PC/104 module designed to meet the demanding needs of various applications requiring precise analog signal generation. This module excels in environments ranging from industrial automation to scientific research, providing users with reliable performance and high-quality output.

Key features of the RUBY-MM-1612 include its capability to deliver 16 independent analog output channels. Each of these channels supports a resolution of 12 bits, enabling the generation of finely detailed signals for a wide range of applications. The analog outputs are voltage scalable, allowing users to select various output ranges, which enhances the module's flexibility in different system configurations.

Another notable characteristic is the onboard architecture, which employs a specialized digital-to-analog converter (DAC) with excellent linearity and minimal noise, ensuring that the output signals are both accurate and stable. The DAC's specifications allow for output signals with a maximum voltage range of ±10V, providing ample headroom for many applications.

In terms of connectivity, the module utilizes the PC/104 standard, known for its ruggedness and compact form factor. This design allows for easy integration into systems, making it ideal for space-constrained environments. The RUBY-MM-1612 features a robust interface that supports various protocols, ensuring compatibility with a wide array of PC/104 systems.

The module also includes a comprehensive set of support software tools, making it user-friendly for developers. The drivers and libraries provided for various programming environments simplify the process of integrating the module into existing systems, reducing development time and effort.

Additionally, the RUBY-MM-1612 is built for durability, with operational specifications that accommodate a wide temperature range. This reliability makes it suitable for outdoor installations and harsh conditions, where other systems may fail.

In summary, the Diamond Systems RUBY-MM-1612 is an advanced 16-channel 12-bit analog output PC/104 module that combines high performance with flexibility and ease of integration. Its robust features, modern technologies, and durability make it an excellent choice for engineers and developers looking for reliable solutions in analog signal generation. Whether in industrial control systems, data acquisition, or laboratory settings, the RUBY-MM-1612 stands out as a top-tier option for fulfilling complex analog output requirements.
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