About SIEMENS PLC MODULES 6ES7322-1BL00-0AA0

Siemens 6ES7322-1BL00-0AA0 Digital Input Module (S7-300 Series)
The Siemens 6ES7322-1BL00-0AA0 is a digital input module designed for the SIMATIC S7-300 PLC series. It receives digital signals from field devices such as sensors, switches, and other binary devices, converting them into data the PLC can process.

Key Features

8 Digital Input Channels
Receives ON/OFF signals from devices like proximity sensors, limit switches, pushbuttons, and other digital sensors.

24V DC Input
Operates on standard 24V DC input signals, ensuring compatibility with most industrial field devices.

Fast Response Time
Supports quick detection of input signal changes, ideal for high-speed automation and control applications.

LED Status Indicators
Each input channel has its own LED indicator for quick visual monitoring and easy troubleshooting.

Wide Voltage Handling
Accepts 24V DC signals with a wide tolerance range, making it reliable under varying field conditions.

Modular S7-300 Integration
Designed as part of the modular S7-300 I/O system for scalable and flexible automation setups.

Diagnostic Features
Provides feedback on input channel status, helping detect faults and maintain system reliability.

Configuration via STEP 7
Easily configured and integrated using Siemens STEP 7 engineering software.

SIMATIC S7-300, SM 322 Digital Output Module

Article No.: 6ES7322-1BL00-0AA0

Isolated digital output module with 32 channels, 24 V DC, 0.5 A per channel.

Supply Voltage

• Rated voltage (L+): 24 V DC

• Permissible range: 20.4 28.8 V DC

Input Current

• From load voltage L+ (without load): max. 160 mA

• From backplane bus 5 V DC: max. 110 mA

Power Loss

• Typ.: 6.6 W

Digital Outputs

• Number of outputs: 32

• Short-circuit protection: Yes, electronic (typ. response 1 A)

• Limitation of inductive shutdown voltage: -53 V

• Controlling a digital input: Yes

• Load resistance range: 48 4 k

• Switching capacity on lamp load: max. 5 W

Output Voltage / Current

• Signal 1 rated current: 0.5 A

• Permissible range (040 C): 5 mA 0.6 A

• Permissible range (4060 C): 5 mA 0.6 A

• Signal 0 residual current: max. 0.5 mA

• Minimum load current: 5 mA

Output Delay

• 0 1: max. 100 s

• 1 0: max. 500 s

Parallel / Redundant Switching

• Parallel switching: No

• Redundant control: Yes (within same group)

Switching Frequency

• Resistive load: max. 100 Hz

• Inductive load: max. 0.5 Hz

• Lamp load: max. 10 Hz

Total Current per Group

• Horizontal installation:

  • 40 C: max. 4 A

  • 60 C: max. 3 A

• Vertical installation:

  • 40 C: max. 2 A

Cable Length

• Shielded: max. 1000 m

• Unshielded: max. 600 m

Diagnostics / Status

• Status LED: digital output per channel (green)

• No diagnostic alarm, no wire-break or short-circuit detection

Potential Separation

• Between channels: Yes, in groups of 8

• Between channels and backplane bus: Yes, optocoupler

• Isolation test: 500 V DC

Connection Method

• Required front connector: 40-pin

Dimensions & Weight

• Width: 40 mm

• Height: 125 mm

• Depth: 120 mm

• Weight: approx. 260 g 

Technical Details