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Home Product 6ES7221-1BF22-0XA0 Siemens S7-200 8-DI 24VDC Digital Input Module PLC Expansion
6ES7221-1BF22-0XA0

6ES7221-1BF22-0XA0 Siemens S7-200 8-DI 24VDC Digital Input Module PLC Expansion

6ES7221-1BF22-0XA0
SIMATIC S7-200 SM221
S7-200 Digital Input Module
6ES7221-1BF22-0XA0
6ES7221-1BF22-0XA0 is a SIMATIC S7-200 SM221 Digital Input Module designed for reliable digital signal acquisition in automation systems by Siemens. Fully compatible with S7-200 PLC systems.
Categories:Automation
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Product Description

The 6ES7221-1BF22-0XA0 is a SIMATIC S7-200 Digital Input Module (SM221) designed for industrial automation systems. It features 8 digital input channels, each supporting 24 V DC signals, and integrates directly with S7-200 PLCs via the system's expansion interface. Operating within a voltage range of 20.4–28.8 V DC, it functions reliably in temperatures from 0°C to 55°C, making it suitable for manufacturing, process control, and machinery applications. While lacking built-in communication interfaces, it relies on the central S7-200 CPU for PPI protocol connectivity. Its compact design and robust signal isolation ensure durability in harsh environments. Notably, it lacks advanced diagnostic features and requires external power sourcing, but offers efficient input filtering for stable signal detection. Battery capacity, screen size, and detection distance specifications are not applicable to this module.
Parameter Specification
Product Model 6ES7221-1BF22-0XA0
Module Type S7-200 Digital Input Module
System Family SIMATIC S7-200 SM221
Input Channels 8-point Sink/Source Input
Nominal Voltage 24 V DC
Current Consumption 6 mA per input at 24 V DC
Isolation 500 V AC optical isolation
Wiring Configuration Screw-type terminals
Input Delay 0.2 - 15 ms configurable
Power Dissipation 1.8 W
Operating Temperature -25°C to +60°C
Mounting Type DIN rail mounting
Certification CE, UL, cULus
question:Do you accept payment after shipment?
answer:We require advance payment or LC terms. Contact us to discuss flexible options based on order specifics.
question:Can goods be declared at a lower value for shipping?
answer:Declarations must reflect actual value per international regulations. We cannot assist with undervaluation but optimize costs legally.
question:Do you offer technical consultation for product selection?
answer:Yes, we provide complimentary technical support to help clients choose optimal product specifications for their needs.
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:Do you accept payment after shipment?
answer:We require advance payment or LC terms. Contact us to discuss flexible options based on order specifics.
question:Can goods be declared at a lower value for shipping?
answer:Declarations must reflect actual value per international regulations. We cannot assist with undervaluation but optimize costs legally.
question:Do you offer technical consultation for product selection?
answer:Yes, we provide complimentary technical support to help clients choose optimal product specifications for their needs.
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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