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Home Product 6ES7321-1CH00-0AA0 16-Channel DI Module 24VDC S7-300 PLC SIMATIC Siemens
SM 321 digital input modules

6ES7321-1CH00-0AA0 16-Channel DI Module 24VDC S7-300 PLC SIMATIC Siemens

Siemens 6ES7321-1CH00-0AA0
S7-300 Digital Input Module
16 Channel 24VDC PLC
6ES7321-1CH00-0AA0
Siemens 6ES7321-1CH00-0AA0 S7-300 Digital Input Module with 16-channel 24VDC PLC integration for industrial automation systems.
Categories:Automation
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Product Description

The Siemens 6ES7321-1CH00-0AA0 is a 16-channel 24VDC digital input module for the S7-300 PLC series, designed to interface with industrial sensors and switches. It operates at 24VDC with a range of 20.4-28.8V and functions reliably in temperatures from 0°C to 60°C. Integrated into the S7-300 backplane, this module supports up to 8 expansion modules per rack, enabling scalable configurations. Ideal for automation, manufacturing, and process control, it offers high noise immunity, optical isolation, and per-channel LED diagnostics for quick troubleshooting. Key advantages include robust construction, easy installation, and compatibility with S7-300 systems. However, it requires an external 24V power supply and lacks advanced communication interfaces or isolated inputs. The module has no integrated battery, display, or sensing capabilities, focusing solely on reliable digital signal acquisition in harsh industrial environments.
Parameter Specification
Product Series Siemens S7-300
Module Type Digital Input Module
Number of Channels 16
Input Voltage 24V DC
Nominal Voltage Range 20.4V to 28.8V DC
Input Current per Channel 7mA typical
Power Consumption 1.5W
Isolation Optical isolation between channels and backplane
Input Delay Time 1ms to 3ms configurable
Backplane Current Consumption 25mA
Permissible Potentials Max. 75V DC/60V AC
Operating Temperature 0°C to 60°C
Storage Temperature -40°C to +70°C
Dimensions (WxHxD) 40mm x 125mm x 117mm
Weight 500g
question:Can shipments apply for low-value declaration?
answer:Yes, low-value declarations are possible for eligible shipments, subject to destination country regulations.
question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team specializing in market analysis and product optimization for global markets.
question:Can the company provide technical selection services?
answer:Yes, we offer technical consultation to help clients identify optimal solutions and reliable suppliers.
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:Can shipments apply for low-value declaration?
answer:Yes, low-value declarations are possible for eligible shipments, subject to destination country regulations.
question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team specializing in market analysis and product optimization for global markets.
question:Can the company provide technical selection services?
answer:Yes, we offer technical consultation to help clients identify optimal solutions and reliable suppliers.
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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