Siemens 6ES7421-1BL01-0AA0 SM 421 Digital Input Module In Stock 100% Genuine

Product Description

The Siemens 6ES7421-1BL01-0AA0 SM 421 Digital Input Module acted as a workhorse for your Siemens S7-400 Programmable Logic Controller (PLC) system (check Siemens for current options, as this product may be discontinued). Here's a look at its role and considerations (refer to Siemens' datasheet for specifics):

• Function:

Expanded your S7-400 system's capabilities by reading on/off signals from various sensors and switches.
Translated these digital signals into a format the S7-400 PLC could understand for process monitoring and control.
**Key Specifications (verify with datasheet):

• Number of Input Channels: Indicated how many sensors you could connect simultaneously (e.g., 8 channels).
  Input Type (possible): Might specify the type of digital signals it could accept, such as DC or AC voltage (verify datasheet).
  
• Voltage Range (possible): Defined the minimum and maximum voltage levels the module could handle for DC inputs (verify datasheet).
  
• Isolation (possible): May have offered electrical isolation between sensor signals and the PLC system to improve noise immunity and safety (verify datasheet).
  
• Status Indicators (possible): Might have included LED lights to display the on/off status of each input channel for troubleshooting (verify datasheet).

Other Attributes

• Country of Origin:  Germany
• Lead Time: In Stock, 2 Working Days

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