PLC | Siemens | 6ES7322-1HF10-0AA0 6ES7 322-1HF10-0AA0 S7-300 Digital output SM 322

Product Description: 6ES7322-1HF10-0AA0

The 6ES7322-1HF10-0AA0 is a high-feature digital input module from the SIMATIC S7-300 series. It provides eight isolated 24 V DC inputs in a single 40 mm- wide SM 322 form-factor. With built-in channel diagnostics and configurable input filtering, it delivers reliable detection of binary signals—such as proximity sensors, switches, and pushbuttons—in industrial automation environments. Plug-in mounting on the S7-300 backplane ensures seamless power and data transfer.

Key Features

• 8 Isolated Inputs: 24 V DC PNP/NPN compatible
• High Feature Diagnostics: Channel-level short-circuit, wire-break, and overvoltage detection
• Configurable Filtering: Selectable input debounce times via STEP 7/TIA Portal
• Status LEDs: Individual LEDs for each channel plus module status indication
• Compact Module Width: 40 mm for high I/O density
• Hot-Swap Support: Can be replaced during operation in a redundant S7-300 rack

Technical Specifications

• Number of Inputs: 8
• Input Voltage: 24 V DC ±20 %
• Input Current: ≤ 6 mA per channel
• Isolation: Channel-to-backplane: 500 V DC
• Diagnostic Functions: Short-circuit, wire-break, overvoltage
• Input Delay (Debounce): Configurable 0 … 20 ms
• Power Consumption: 0.3 W (logic), 1.2 W (field)
• Module Width: 40 mm
• Mounting: Plug-in to S7-300 rack, DIN-rail backplane
• Operating Temperature: 0 … +60 °C
• Protection Class: IP20
• Weight: ≈ 200 g

Application Areas

• Machine-level sensing: proximity switches, limit switches
• Process automation: status feedback from valves, pumps
• Packaging and material handling systems
• Safety-related signal monitoring in redundant architectures

Advantages

• Enhanced uptime through integrated channel diagnostics
• Flexible noise immunity via user-selectable input filtering
• High I/O density with narrow module design
• Simplified maintenance with hot-swap capability
• Seamless engineering within STEP 7/TIA Portal environments