Foxboro Input/output modules convert signals from field devices (such as sensors) into formats understandable by control modules and vice versa. They typically include:
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Analog Input/Output Modules: These modules process analog signals, such as voltage or current signals.
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Digital Input/Output Modules: These modules process digital signals, such as switch signals or pulse signals.
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Specialty Input/Output Modules: These modules handle specific types of signals, such as thermocouple signals or RTD signals.