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Home Product 6ES5256-3AB21 Siemens Digital Input Module 24VDC 16-Channel ET200 Distributed I/O PLC Control
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6ES5256-3AB21 Siemens Digital Input Module 24VDC 16-Channel ET200 Distributed I/O PLC Control

6ES5256-3AB21 module
Siemens S5-100U module
PLC digital input module
6ES5256-3AB21
The 6ES5256-3AB21 module is a Siemens S5-100U PLC digital input module designed for industrial automation systems, providing reliable signal processing and integration with S5-100U controllers for efficient process control applications.
Categories:Automation
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Product Description

The 6ES5256-3AB21 module is a Siemens S5-100U PLC digital input module designed for industrial automation. It features 16 isolated digital input channels supporting 24V DC signals, with a voltage range of 20.4–28.8V DC. Compatible with the S5-100U system, it integrates seamlessly into existing setups, supporting up to 8 expansion modules for scalable configurations. Operating within 0–55°C, it suits harsh environments in manufacturing, machinery, and process control. Key strengths include robust isolation, high noise immunity, and Siemens' reliability, though legacy compatibility may limit modern integration. No integrated battery or display, as it functions as a peripheral I/O module. Communication occurs via system backplane, ensuring synchronized data exchange within the PLC rack. Ideal for retrofits or maintaining legacy systems requiring dependable digital input processing.
ParameterSpecification
Product Model6ES5256-3AB21 module
System CompatibilitySiemens S5-100U module
Module TypePLC digital input module
Input Channels16 digital inputs
Supply Voltage24V DC ±10%
Input Voltage Range15-30V DC
Input Current7mA per channel (typical)
Isolation Voltage1500V AC (test)
Response Time≤3ms (ON/OFF delay)
Power Consumption1.2W (max)
Operating Temperature-25°C to +60°C
Mounting MethodDIN rail TS35
Protection ClassIP20
Connection TypeScrew terminal
question:Why choose your company as a supplier?
answer:As Asia's leading industrial automation trader with 20+ years of experience, we ensure reliable quality, strong reputation, and 85% repeat customers.
question:Can you offer upgraded or alternative models?
answer:Yes, we provide multiple upgraded or compatible alternatives with technical support to meet diverse application requirements.
question:Do you guarantee stable product supply?
answer:We maintain robust supply chains and prioritize long-term partnerships to ensure consistent and timely delivery.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why choose your company as a supplier?
answer:As Asia's leading industrial automation trader with 20+ years of experience, we ensure reliable quality, strong reputation, and 85% repeat customers.
question:Can you offer upgraded or alternative models?
answer:Yes, we provide multiple upgraded or compatible alternatives with technical support to meet diverse application requirements.
question:Do you guarantee stable product supply?
answer:We maintain robust supply chains and prioritize long-term partnerships to ensure consistent and timely delivery.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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