Analog modules can be either voltage sensing or current sensing.

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Multiple Choice

Analog modules can be either voltage sensing or current sensing.

Explanation:
Analog input modules in PLCs are designed to read signals from sensors in two common forms: voltage or current. When a module is voltage-sensing, it converts voltages such as 0-10 V or 0-5 V into a digital value via the ADC. When a module is current-sensing, it handles current loops like 4-20 mA; since the ADC reads voltage, the current is first converted to a voltage inside the module using a shunt resistor or a similar circuit, and that voltage is then digitized. Some modules can be configured to accept either type across different channels, but typically each channel is set up for one sensing type. Overall, there are analog modules designed for voltage sensing and others designed for current sensing, so the statement is true.

Analog input modules in PLCs are designed to read signals from sensors in two common forms: voltage or current. When a module is voltage-sensing, it converts voltages such as 0-10 V or 0-5 V into a digital value via the ADC. When a module is current-sensing, it handles current loops like 4-20 mA; since the ADC reads voltage, the current is first converted to a voltage inside the module using a shunt resistor or a similar circuit, and that voltage is then digitized. Some modules can be configured to accept either type across different channels, but typically each channel is set up for one sensing type. Overall, there are analog modules designed for voltage sensing and others designed for current sensing, so the statement is true.

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