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Combined 16-Channel Digital Input/Output Module for S7-300
The 6ES7323-1BH01-0AA0 serves as a digital module SM 323 for the SIMATIC S7-300 automation platform. This module combines 8 digital inputs and 8 digital outputs in a single unit, efficiently utilizing cabinet space . It operates on a 24 V DC voltage, making it compatible with standard industrial sensors and actuators . Furthermore, the module simplifies wiring and reduces the overall hardware count in your PLC system .
Technical Specifications
The table below details the key technical parameters for the 6ES7323-1BH01-0AA0 digital module.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Type | Digital I/O Module (SM 323) |
| Series | SIMATIC S7-300 |
| Digital Inputs | 8 (24 V DC) |
| Digital Outputs | 8 (24 V DC, transistor) |
| Input Voltage | 24 V DC (20.4 to 28.8 V range) |
| Rated Output Current | 0.5 A per channel |
| Short-Circuit Protection | Yes, with integral electronic protection |
| Dimensions (W x H x D) | 40 mm x 125 mm x 120 mm |
| Weight (approx.) | 0.25 kg |
| Front Connector | 20-pin |
| Cable Length (shielded, max.) | 1,000 m |
| Cable Length (unshielded, max.) | 600 m |
| Product Lifecycle | Discontinued (since March 2021) |
| Country of Origin | Germany |
Application and Integration
The 6ES7323-1BH01-0AA0 supports a wide temperature range, ensuring reliability in demanding factory environments. It provides diagnostics capabilities for effective troubleshooting and maintenance. For seamless system expansion, the module allows easy integration into the S7-300 backplane bus. Therefore, users should note that Siemens has discontinued this module since 2021, making it a spare part for legacy S7-300 system maintenance .
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