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Home Product 6ES7321-1BP00-0AA0 Siemens S7-300 16-Channel DI Module 24VDC PLC Digital Input Card with Diagnostics
SM 321 digital input modules

6ES7321-1BP00-0AA0 Siemens S7-300 16-Channel DI Module 24VDC PLC Digital Input Card with Diagnostics

6ES7321-1BP00-0AA0
Siemens S7-300 DI Module
S7-300 32-Channel Digital Input
6ES7321-1BP00-0AA0
The Siemens 6ES7321-1BP00-0AA0 S7-300 DI Module provides 32-Channel Digital Input for industrial automation, compatible with S7-300 PLCs. Supports 24V DC signals, enabling reliable data acquisition and integration in control systems.
Categories:Automation
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Product Description

The **6ES7321-1BP00-0AA0** is a **Siemens S7-300 DI Module** designed as a **32-channel digital input** unit for industrial automation systems. Part of the **S7-300 PLC series**, this module supports **24V DC inputs** and integrates seamlessly with the S7-300 rack via **backplane bus communication**. It operates within a **voltage range of 20.4–28.8V DC**, with an ambient temperature tolerance of **0–60°C**, suitable for harsh environments in manufacturing, machinery, and process control. Each input channel provides electrical isolation and diagnostic capabilities for error detection. The module’s compact design optimizes control cabinet space but lacks analog input flexibility. It requires no battery or screen, focusing purely on high-density digital signal acquisition. Though robust, it may require additional terminal accessories for field wiring. Ideal for applications demanding reliable, high-volume discrete signal processing without complex interfacing.
Parameter Specification
Product Order Number 6ES7321-1BP00-0AA0
Module Type Siemens S7-300 DI Module
Number of Input Channels 32-Channel Digital Input
Input Voltage Category 24V DC Sink/Source
Nominal Input Voltage 24V DC
Input Current Typ. 7mA per channel
Isolation 500V AC between channels and backplane
Response Time 1.2ms to 4.8ms (configurable)
Backplane Current Consumption 100mA (5V DC from backplane)
Power Dissipation 6.5W
Electrical Isolation Test Voltage 1500V AC (1min)
Operating Temperature Range 0°C to 60°C
Storage Temperature Range -40°C to +70°C
Dimensions (W x H x D) 40mm x 125mm x 120mm
Weight 415g
Certification CE, UL, cULus, ATEX, IECEx
question:Can you provide upgraded or alternative models?
answer:Yes, we offer upgraded and compatible alternative models based on product availability and client requirements.
question:Is stable supply guaranteed?
answer:We ensure stable supply through optimized production planning and reliable logistics partnerships.
question:Do you provide technical selection support?
answer:Our technical team offers tailored product selection guidance to meet specific application 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:Can you provide upgraded or alternative models?
answer:Yes, we offer upgraded and compatible alternative models based on product availability and client requirements.
question:Is stable supply guaranteed?
answer:We ensure stable supply through optimized production planning and reliable logistics partnerships.
question:Do you provide technical selection support?
answer:Our technical team offers tailored product selection guidance to meet specific application 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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