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Home Product 6ES7321-1BH10-0AA0 Siemens S7-300 16-Channel Digital Input Module 24V DC PLC
SM 321 digital input modules

6ES7321-1BH10-0AA0 Siemens S7-300 16-Channel Digital Input Module 24V DC PLC

6ES7321-1BH10-0AA0
Siemens S7-300 DI module
16-channel 24VDC PLC module
6ES7321-1BH10-0AA0
6ES7321-1BH10-0AA0: Siemens S7-300 16-channel 24VDC DI module for PLC systems, designed for industrial automation with reliable digital input processing.
Categories:Automation
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Product Description

The Siemens 6ES7321-1BH10-0AA0 is a 16-channel 24VDC digital input (DI) module designed for the S7-300 PLC series. It features 16 isolated inputs compatible with 24V DC sensors or switches, supporting a voltage range of 20.4–28.8V DC. Integrated into the S7-300 rack via a backplane bus, it allows direct connection to up to 8 expansion modules. Operating within 0–60°C, it is ideal for industrial automation, manufacturing, and process control. Key advantages include high noise immunity, LED status indicators, and plug-and-play compatibility. However, it lacks built-in diagnostics or communication ports, relying on the CPU for data exchange. The module does not include a screen or battery, and its input response time is typically 2–3 ms, suitable for standard switching applications. Compatibility with IEC standards ensures reliability in harsh environments.
Parameter Specification
Module Type Siemens S7-300 DI module
Number of channels 16-channel digital input
Input voltage 24VDC nominal (20-30VDC operational)
Current consumption 7mA per channel (typical)
Input delay 3ms (programmable filter time)
Isolation Optical isolation between channels and backplane
Power connection 1 x 20-pole front connector
Module width 40mm (standard S7-300 mounting)
Backplane current 25mA (5VDC from system power supply)
Certifications CE, UL, ATEX, IECEx
Operating temperature 0°C to 60°C
Weight Approx. 500g
Housing material Plastic with metal rail attachment
Diagnostic functions LED status indicators per channel
question:Do you offer shipment before payment?
answer:Payment is required before shipment as standard practice. Exceptions may apply based on order history and agreements.
question:How do you handle faulty refurbished products post-purchase?
answer:Refurbished products under warranty will be repaired or replaced. Please provide order details for assessment.
question:Can you provide upgraded or alternative models?
answer:Upgraded or alternative models are available based on stock and requirements. Contact sales for specific options.
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 offer shipment before payment?
answer:Payment is required before shipment as standard practice. Exceptions may apply based on order history and agreements.
question:How do you handle faulty refurbished products post-purchase?
answer:Refurbished products under warranty will be repaired or replaced. Please provide order details for assessment.
question:Can you provide upgraded or alternative models?
answer:Upgraded or alternative models are available based on stock and requirements. Contact sales for specific options.
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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