What is the module that corresponds to the sensor at the field measurement point on the side of the display instrument?
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What is the module that corresponds to the sensor at the field measurement point on the side of the display instrument? At the on-site measurement points, sensors convert process parameters such as pressure, temperature, and flow rate into electrical current signals; whereas at the DCS host computer, these electrical current signals are converted back into process parameters for display. So, on the DCS host side, which specific module is responsible for carrying out this reverse conversion?
All AI modules are designed for this purpose.
The analog-to-digital converter (A/D converter) in the AI module is responsible for carrying out this task; from the perspective of the module, it is the AI module itself that performs this function.
An analog-to-digital converter that converts various current, resistance, and mv signals into digital signals
Signal acquisition module, signal acquisition card,
The original poster will understand once they study*study*controllers
AI cards convert analog signals into digital signals, with the current corresponding to a percentage or a range