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Siemens 6ES7421-1BL01-0AA0 | SIMATIC S7-400 Digital Input Module
Overview
The Siemens 6ES7421-1BL01-0AA0 is a digital input module designed for the SIMATIC S7-400 automation system. It offers 32 digital inputs at 24V DC in sink (negative logic) configuration, supporting the reliable acquisition of binary signals in industrial control applications. The module uses a 40-pin front connector and occupies a single slot in the S7-400 rack.
Key Features
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Input Channels: 32 digital inputs
-
Input Voltage: 24V DC (sink)
-
Front Connector Type: 1 x 40-pin (not included)
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Module Width: 1 slot
-
Diagnostics: Group diagnostics via LEDs
-
Signal Delay: Approx. 3.2 ms
-
Isolation: Between channels and backplane
-
LED Indicators: Per group for status diagnostics
-
Hot Swappable: Yes, with rack power on
Technical Specifications
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Catalog Number: 6ES7421-1BL01-0AA0
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Input Type: DC 24V, sink (IEC type 1/3)
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Current per Input: Approx. 6 mA
-
Backplane Current Draw: Approx. 55 mA
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Dimensions (W x H x D): Approx. 25 mm x 290 mm x 210 mm
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Weight: Approx. 0.5 kg
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Protection Class: IP20
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Operating Temperature: 0°C to +60°C
-
Certifications: CE, UL, CSA, RoHS
-
Compatible Systems: SIMATIC S7-400 racks and CPUs
Applications
-
Industrial Automation Systems
-
Manufacturing and Assembly Lines
-
Control Cabinets for Machinery
-
Process Monitoring and Input Collection
-
OEM Automation Integration
Why Choose the 6ES7421-1BL01-0AA0?
-
High Channel Density: 32 inputs in a single-slot width
-
Reliable Signal Acquisition: Stable 24V DC input range
-
Compact Rack Integration: Ideal for control cabinet space optimization
-
Diagnostic LEDs: Quick status checks for maintenance
-
Siemens Quality: Durable, long-life module for critical systems
Order Now
Available for worldwide delivery.
Description
Siemens 6ES7421-1BL01-0AA0 | SIMATIC S7-400 Digital Input Module
Overview
The Siemens 6ES7421-1BL01-0AA0 is a digital input module designed for the SIMATIC S7-400 automation system. It offers 32 digital inputs at 24V DC in sink (negative logic) configuration, supporting the reliable acquisition of binary signals in industrial control applications. The module uses a 40-pin front connector and occupies a single slot in the S7-400 rack.
Key Features
-
Input Channels: 32 digital inputs
-
Input Voltage: 24V DC (sink)
-
Front Connector Type: 1 x 40-pin (not included)
-
Module Width: 1 slot
-
Diagnostics: Group diagnostics via LEDs
-
Signal Delay: Approx. 3.2 ms
-
Isolation: Between channels and backplane
-
LED Indicators: Per group for status diagnostics
-
Hot Swappable: Yes, with rack power on
Technical Specifications
-
Catalog Number: 6ES7421-1BL01-0AA0
-
Input Type: DC 24V, sink (IEC type 1/3)
-
Current per Input: Approx. 6 mA
-
Backplane Current Draw: Approx. 55 mA
-
Dimensions (W x H x D): Approx. 25 mm x 290 mm x 210 mm
-
Weight: Approx. 0.5 kg
-
Protection Class: IP20
-
Operating Temperature: 0°C to +60°C
-
Certifications: CE, UL, CSA, RoHS
-
Compatible Systems: SIMATIC S7-400 racks and CPUs
Applications
-
Industrial Automation Systems
-
Manufacturing and Assembly Lines
-
Control Cabinets for Machinery
-
Process Monitoring and Input Collection
-
OEM Automation Integration
Why Choose the 6ES7421-1BL01-0AA0?
-
High Channel Density: 32 inputs in a single-slot width
-
Reliable Signal Acquisition: Stable 24V DC input range
-
Compact Rack Integration: Ideal for control cabinet space optimization
-
Diagnostic LEDs: Quick status checks for maintenance
-
Siemens Quality: Durable, long-life module for critical systems
Order Now
Available for worldwide delivery.