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Advantech ADAM 4000 user manual Appendix B Analog Output Formats, Percent of Span, Hexadecimal

Models: ADAM 4000

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Appendix B

B.3 Analog Output Formats

You can configure ADAM analog output modules to receive data from the host in one of the following data formats:

-Engineering Units -Percent of FSR

-Twos complement hexadecimal

Data for ADAM modules can be used in any one of the following data formats:

B.3.1 Engineering Units

This format is chosen by setting bits 0 and 1 of the data format/slew rate/checksum parameter to 00.

Data are presented in natural units such as milliamps. When the value in engineering format is converted to computer language, it is presented in six characters. These characters are ordered as two decimal digits, a decimal point, and then three decimal digits. As a result, the resolution is 5 μA.

For example, an analog output module (address 01h) is configured for a 0 to 20 mA range. If the output value is + 4.762 mA, the format of the Analog Data Out command would be #0104.762(cr).

B.3.2 Percent of Span

The Percent of Span format is employed by setting bits 0 and 1 of the data format/slew rate/checksum parameter to 01.

This format consists of a “+” or “-” sign, three decimal digits, a decimal point and two decimal digits. Data are presented as the value sent by the output signal relative to the span of the output (percent of span).

The maximum resolution is 0.2% of the span (5 μA for the 0 to 20 mA output range); therefore, the desired output value is 10 mA. The format of the Analog Data Out command is as follows:

#01+050.00 (cr). It indicates that the output is at 50% of the span, and the decimal point is fixed.

B.3.3 Hexadecimal

This format is selected by setting bits 0 and 1 of the data format/slew rate/checksum parameter to 10.

ASCII’s condensed hexadecimal representation of data provides high resolution. The format consists of a 3-character hexadecimal string representing a 12-bit binary value. The resolution for the 0 to 20mA output range equals to .025% of the span, which is also equivalent to 5μA. The corresponding value for 000 is 0mA; likewise, the value FFF corresponds to 20mA.

Appendix B Data Formats and I/O Ranges B-11

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Advantech ADAM 4000 user manual Appendix B Analog Output Formats, Percent of Span, Hexadecimal
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ADAM 4000 specifications

Advantech's ADAM 4000 series is a line of versatile distributed I/O devices designed to bridge the gap between field devices and control systems. Known for its robust design and flexible configurations, the ADAM 4000 series is ideally suited for various industrial applications, including process monitoring, automation control, and data acquisition.

One of the notable features of the ADAM 4000 series is its modular architecture. This flexibility allows users to customize their setup by selecting specific I/O modules tailored to their application needs. The series supports a wide range of input and output types, including analog, digital, and relay outputs, making it a comprehensive solution for monitoring and controlling various parameters in a system.

In terms of communication, the ADAM 4000 series boasts multiple connection options, including RS-232, RS-485, and Ethernet. These communication protocols ensure seamless integration with existing control systems and enhance the ability to deploy in various network configurations. Furthermore, the series supports several industrial protocols such as Modbus, enabling easy integration with SCADA systems or PLCs.

One of the standout technologies in the ADAM 4000 series is the use of advanced data acquisition methods. This allows users to capture precise data from sensors and other field devices, which can then be processed and analyzed to improve operational efficiency. The built-in diagnostics features help in quick troubleshooting, minimizing downtime and maintenance costs.

The ADAM 4000 devices are designed for rugged environments, featuring a wide operating temperature range and a high level of resistance to electromagnetic interference. This durability makes them suitable for various industrial conditions, from factory floors to remote monitoring stations.

Additionally, the ADAM.NET SDK provided by Advantech simplifies the development process for software applications. This toolkit allows engineers to build custom applications that effectively interact with the devices, thus enhancing the overall functionality and user experience.

In summary, the Advantech ADAM 4000 series stands out as a reliable and flexible solution for industrial automation needs. Its modular design, diverse communication protocols, advanced data acquisition capabilities, and rugged build quality make it an ideal choice for organizations looking to enhance their monitoring and control systems. Whether in manufacturing, energy management, or environmental monitoring, the ADAM 4000 series offers a robust foundation for any industrial application.