Siemens | Simatic S7 6ES7277-0AA21-0XA0

Product Details

• Part Number 1 6ES7277-0AA21-0XA0

Product Description

The Siemens 6ES7277-0AA21-0XA0 is a Profibus DP Module used with the Simatic S7 automation platform.

Within the control architecture, this product serves the equipment role stated in its description and should be selected by exact model identity rather than by appearance or a broadly similar name. Application should remain aligned with the documented system design.

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. This helps preserve the function assigned to the installed control node.

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 plant's maintenance records should support final product selection.

Product Documentation

• Common Part Typos 6ES7277-0AA21-0XAO, 6ES7277-0AA21-OXA0, 6ES7277-0AA2I-0XA0, 6ES7277-0AA2l-0XA0, 6ES7277-OAA21-0XA0, 6ES72770AA210XA0, 6ES72770AA210XAO, 6ES72770AA21OXA0, 6ES72770AA2I0XA0, 6ES72770AA2l0XA0, 6ES7277OAA210XA0

Reviews

5.0 Rating

"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

"We received the cables Frank. They are in great shape, including the connectors. Thanks for the good service."

- Larry A., United States

"DCS Center provides phenomenal service. They are prompt with a response. They have helped me numerous times with surplus and new items. I look forward to a long..."

- Tonya M., United States

"Frank your customer service has been excellent, you go out of your way to help and support. Your response and feedback is exceptional, its a pleaure to engage..."

- Selva Moodley, South Africa

"Been doing business with the DCS Center for years. Quick responses, solid repairs and excellent follow-up support!"

- Alex L., 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 States