Siemens 6ES7322-1BL00-0AA0 Digital Output Module

Siemens 6ES7322-1BL00-0AA0 Digital Output Module

Product Overview

The Siemens 6ES7322-1BL00-0AA0 is a SIMATIC S7-300 SM322 Digital Output Module designed for industrial automation control systems. It provides 32 digital output channels (DO) with 24 V DC / 0.5 A output capability and electrical isolation, allowing PLC systems to control external devices such as relays, contactors, solenoid valves, indicator lamps, and actuators.

This module is widely used in Siemens S7-300 PLC systems for factory automation, machine control, and process automation applications.

Main Specifications

• Manufacturer: Siemens
• Model: 6ES7322-1BL00-0AA0
• Series: SIMATIC S7-300
• Module Type:
  • Digital Output Module
  • SM322 DO Module
  • PLC Signal Module
• Product Name: SM 322 Digital Output
• Output Channels: 32 DO
• Output Type: Transistor Output
• Isolation: Electrically isolated
• Connection: 1 × 40-pin connector

Technical Specifications

Digital Output Parameters

• Number of Outputs: 32 channels
• Rated Output Voltage: 24 V DC
• Output Current per Channel: 0.5 A
• Total Current:
  • 4 A per output group
  • 16 A per module
• Output Signal: Switching ON/OFF control
• Output Delay:
  • OFF → ON: max. 100 μs
  • ON → OFF: max. 500 μs

Electrical Data

• Load Voltage (L+): 24 V DC
• Permissible Voltage Range: 20.4–28.8 V DC
• Backplane Bus Current Consumption: Approx. 110 mA
• Load Voltage Current Consumption: Approx. 160 mA
• Power Loss: Approx. 6.6 W

Mechanical Specifications

• Mounting: S7-300 rack mounting
• Dimensions (W × H × D):
  • 40 × 125 × 117 mm
• Weight: Approx. 260 g

Features & Advantages

• Original Siemens SIMATIC S7-300 I/O module
• 32-channel digital output design
• Optical/electrical isolation improves system reliability
• High switching speed for industrial control tasks
• Compact modular design for easy replacement
• Supports connection of various field devices
• Suitable for continuous industrial operation

Applications

• Factory automation systems
• Machine control equipment
• Packaging machinery
• Production lines
• Material handling systems
• Process control systems
• PLC-based automation cabinets

Typical controlled devices:

• Contactors
• Solenoid valves
• Relays
• Motors starters
• Alarm indicators
• Actuators

Compatible Equipment

Commonly used with:

• Siemens SIMATIC S7-300 PLC
• CPU 312 / 314 / 315 / 317 / 319 series
• ET200M distributed I/O systems
• STEP 7 programming environment

Important Notes

• 6ES7322-1BL00-0AA0 is a Digital Output Module, not a CPU or analog module.
• Confirm PLC hardware configuration compatibility before replacement.
• Check output load current requirements before connecting field devices.
• Ensure correct 24V DC power supply wiring.
• Disconnect power before installation or removal.