Chapter 3

Function Description for the ADAM-4011 Thermocouple Input Module

To provide a better understanding of the ADAM module functions, the following is a description of the module ADAM-4011 with the most extensive set of functions.

All analog input data first flow through the PGA (programmable gain amplifier). The amplifier can vary its gain from 1 to 128. The PGA then automatically adjusts the signal to a range from -2.5 V to +2.5 V. This ensures an optimal input voltage and resolution for the A/D converter.

The A/D conversion is supervised by the microprocessor that holds the calibration software. Two kinds of calibrations, Auto Zero and Auto Span calibrations, take place automatically in startup or reset. Normal calibration is used to adjust the signal according to calibration parameters defined by the user.

The digital 10 Hz filter provides a steady state output by using the

Δfunction.

Before the data enter the microprocessor, they pass through an optical isolation device which prevents the chance of circuit damaging caused by power surges from the ground terminal.

The microprocessor has six basic functions:

-Linearization of T/C (Thermocouple)

-Communication software and command set

-Calibration software

-Alarm monitoring

-Event counting

-Management of the EEPROM device that holds the system parameters

-Data transformation

After data have been transformed to the right data format, they are being passed on to the RS-485 output port.

If an input value exceeds the High alarm setting or falls below the Low alarm setting, a flag is set in one of the Digital Output channels.

Finally, the on-board switching regulator accepts voltage between +10 and +30 VDC, and it has an isolation value of 500 VDC to protect your

equipment from damages caused by power surges.

Chapter 3 I/O Modules 3-5

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Advantech ADAM 4000 user manual Chapter
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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.
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