Diamond Systems RUBY-MM-1612, 16-Channel 12-Bit Analog Output PC/104 Module Calibration Procedure

Page 18

12.CALIBRATION PROCEDURE

Calibration requires a voltmeter (at least 5 digits of precision is preferred) and a miniature screwdriver to turn the potentiometer screws. The common lead of the voltmeter must be connected to analog ground (not digital ground). The best source for this connection is any of the analog ground pins on the user I/O header J3.

⇒Note: All steps should be completed in the sequence shown, since each step affects the following steps. (Steps 4 and 5 may be interchanged since they do not depend on each other.)

+5.000V Reference Voltage Adjust

Install a jumper in position “5” on J4. Connect the high side lead of the voltmeter to the upper pin of J4 under either location marked “F”. Adjust R1 so that the voltmeter reads +5.000V.

+10.00V Reference Voltage Adjust

Keep the voltmeter connected to as described above. Remove the jumper in position “5” on J4 and adjust R2 so that the voltmeter reads +10.000V.

Adjustable Reference Adjust

This step can be skipped if you are not using the adjustable reference.

Connect the voltmeter to the upper pin of J4 below either location marked “A” on J4. Adjust R3 so that the voltmeter reads the desired full-scale voltage range. This voltage is factory-preset to 2.500V. Any adjustment from about 1V to slightly over 2.5V is achievable.

Negative Full-Scale Reference Adjust, Channels 0 - 7

Install jumpers in positions “5” and the leftmost “F” on J4. Connect the voltmeter to the upper pin on J4 under the leftmost “B”. Adjust R4 so that the voltmeter reads –4.999V. With this setting, the D/A will actually output closer to –5.000V when it is loaded with all zeros. This value can be adjusted later if desired by measuring the actual D/A output.

Negative Full-Scale Reference Adjust, Channels 8-15

Install jumpers in positions “5” and the rightmost “F” on J4. Connect the voltmeter to the upper pin on J4 under the rightmost “B”. Adjust R5 so that the voltmeter reads –4.999V.

Copyright 2001 Diamond Systems Corp.

Ruby-MM-1612 User Manual V1.1 P. 18

Page 17 Page 19
Image 18
Page 17 Page 19
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.
Top Page Image Contents