About Siemens S7-300 16DO Expansion Module

Siemens S7-300 16DO Expansion Module

Manufacturer: Siemens
Series: S7-300
Supplier: Naksh Technology Solution LLP

The Siemens S7-300 16DO Expansion Module is designed to extend the digital output capabilities of Siemens S7-300 PLCs. With 16 digital outputs, it provides flexible and efficient control of industrial automation processes.

Key Features:

• 16 digital outputs for controlling relays, actuators, and indicators

• Reliable and fast operation for industrial applications

• Seamless integration with Siemens S7-300 PLCs

• Easy configuration using STEP 7 or TIA Portal software

Applications:

• Industrial automation requiring high-performance digital output control

• Machine control, process automation, and monitoring systems

Data Sheet Siemens 6ES7 322-1BH01-0AA0

• SIMATIC S7-300 | Digital Output Module SM 322
• 16 DO | 24 V DC | 0.5 A per channel | Isolated | 120-pin connector
• Total current: 4 A per group (8 A per module)

Supply Voltage

• Load voltage L+ (rated): 24 V DC

• Permissible range:

  • Lower limit: 20.4 V

  • Upper limit: 28.8 V

Input Current

• From load voltage L+ (no load): max. 80 mA

• From backplane bus (5 V DC): max. 80 mA

Power Loss

• Typical: 4.9 W

Digital Outputs

• Number of digital outputs: 16

• Short-circuit protection: Yes (electronic)

  • Response threshold: approx. 1 A

• Inductive shutdown voltage: Limited to L+ (53 V)

• Can drive digital input: Yes

Switching Capacity

• Lamp load (max.): 5 W

Load Resistance Range

• Minimum: 48

• Maximum: 4 k

Output Voltage

• Signal 1: L+ 0.8 V

Output Current

• Rated current: 0.5 A

• 040C: 5 mA to 0.6 A

• 4060C: 5 mA to 0.6 A

• Minimum load current: 5 mA

• Residual current at 0: max. 0.5 mA

Output Delay

• 0 1: max. 100 s

• 1 0: max. 500 s

Parallel Switching

• For uprating: No

• For redundant load: Yes

Switching Frequency (max.)

• Resistive load: 100 Hz

• Inductive load: 0.5 Hz

• DC13 inductive: 0.5 Hz

• Lamp load: 10 Hz

Total Current per Group (8 Outputs)

Horizontal Mounting

• Up to 40C: max. 4 A

• Up to 60C: max. 3 A

Vertical Mounting

• Up to 40C: max. 2 A

Cable Length

• Shielded: max. 1000 m

• Unshielded: max. 600 m

Diagnostics / Status

• Alarms: No

• Diagnostics: No

• Diagnostic alarm: No

• Wire-break: No

• Short-circuit: No

• Fuse blown: No

• Missing load voltage: No

LED Indicators

• PWR (green): No

• FSG/Fuse OK (green): No

• Output status LEDs (green): Yes

Isolation / Separation

• Between channels: Yes

• Grouping: channels isolated in groups of 8

• Between channels & backplane bus: Yes (optocoupler)

• Isolation test voltage: 500 V DC

Connections

• Required front connector: 20-pin

Mechanical Data

• Width: 40 mm

• Height: 125 mm

• Depth: 120 mm

• Weight: approx. 190 g 

Technical Details