Siemens | Simatic S7 6ES7421-1BL01-0AA0

Product Details

• Part Number 1 6ES7421-1BL01-0AA0
• UPC 662643186635
• HTS 85389091
• Country of Origin Germany

Product Description

The Siemens 6ES7421-1BL01-0AA0 is a Digital Input Module used with the Simatic S7 automation platform.

In day-to-day system operation, digital input hardware creates the path from field-level status signals to control logic, allowing the system to evaluate operating conditions and respond through configured sequences or protective actions. Configuration records should be reconciled with the exact installed assembly.

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. System drawings should be consulted before replacement.

Country of origin is listed as Germany.

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 documented module assignment should remain the basis for selection.

Product Documentation

• Part Notes

  Active Product 05.10.2021

  SIEMENS SIMATIC S7-400 digital input SM 421, isolated 32 DI; 24 VDC

• Common Part Typos 6ES7421-1BL01-0AAO, 6ES7421-1BL01-OAA0, 6ES7421-1BL0I-0AA0, 6ES7421-1BL0l-0AA0, 6ES7421-1BLO1-0AA0, 6ES7421-IBL01-0AA0, 6ES7421-lBL01-0AA0, 6ES74211BL010AA0, 6ES74211BL010AAO, 6ES74211BL01OAA0, 6ES74211BL0I0AA0, 6ES74211BL0l0AA0, 6ES74211BLO10AA0, 6ES7421IBL010AA0, 6ES7421lBL010AA0, 6ES742I-1BL01-0AA0, 6ES742I1BL010AA0, 6ES742l-1BL01-0AA0, 6ES742l1BL010AA0

Reviews

5.0 Rating

"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

"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

"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

"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

"I would like to say thanks a lot for all. I’ve had good service with you and it’s a pleasure"

- Audrey, Québec, Canada

"Hi Frank and thank you for your quick response - good service. We look forward to doing more business with DCS"

- Serge, United States