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The Siemens 6ES7221-1EF00-0XA0 is a Digital Input Module used with the Simatic S7 automation platform.
In day-to-day system operation, this class of module brings discrete field status into the control system. Typical signal sources include switches, relay contacts, permissives, and equipment-status circuits when they match the module's electrical requirements. This helps preserve the function assigned to the installed control node.
SIMATIC S7 integrates programmable control, modular I/O, and industrial communication functions. This product belongs to the PLC modules layer of the installed S7 automation solution. The system's documented hardware assignment should guide placement.
For maintenance or replacement work, the exact module designation should be checked against the installed hardware, wiring records, and control-system documentation before the component is placed into service. The assigned system function should be preserved through installation and service.
SIEMENS SIMATIC S7-200 EM 221 DIGITAL INPUT MODULE, OPTICALLY ISOLATED 8DI, 120 VAC FOR S7-21XX CPU ONLY
Product cancelled by Siemens 10.01.2013 without replacement
Product cancelled by Siemens 10.01.2013 without replacement
"We received the cables Frank. They are in great shape, including the connectors. Thanks for the good service."
- Larry A., United States"We received the 6ES7141-1BF12-0XB0 module yesterday - thank you very much! We will probably order another one next week. Thanks"
- George C., United States"Dear Frank and James, This morning we tested the "new" IEPAF01 cards. Everything is fine!!! I want to express my thanks and my personal acknowledgement on how you..."
- Carmelo I., Italy"Frank, we are very happy with your service. Our test mechanic has checked the controllers, they all are good!"
- Tony N., United States"Hey Frank, thank you for your great service and competitive pricing. We will definitely be using you again in the future."
- Patrick O., United States"James is the BEST! He makes sure all your questions are answered and that you're happy with your order before it's shipped. My part arrived right on time...."
- Katie, United StatesDCS Center sells new surplus and reconditioned products. This website is not sanctioned or approved by any manufacturer or tradename listed. DCS Center is not an authorized distributor or representative for the listed manufacturers. Designated trademarks, brand names and brands appearing herein are the property of their respective owners.
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