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Siemens 6ES7321-7RD00-0AB0 Digital Input Module – Optically Isolated, Hazardous Area Capable
The Siemens 6ES7321-7RD00-0AB0 is an optically isolated digital input module designed for use in hazardous areas, offering high reliability and diagnostic capabilities. It supports signals from Namur/DIN 19234 compatible sensors, making it ideal for industrial automation applications.