Siemens S7-300 16DI16DO Expansion Module

About Siemens S7-300 16DI16DO Expansion Module

Product: Siemens S7-300 16DI/16DO Expansion Module
Supplier: Naksh Technology Solution LLP

The Siemens S7-300 16DI/16DO Expansion Module is designed to extend the input and output capabilities of Siemens S7-300 PLC systems.

Key Features:

• 16 digital inputs (DI) and 16 digital outputs (DO) for flexible control and monitoring

• Fast and reliable signal processing for I/O operations

• Ideal for larger automation systems requiring high I/O capacity

• Seamless integration with Siemens S7-300 PLC

• Easy configuration using STEP 7 or TIA Portal software

Applications:

• Machine control

• Process automation

• Industrial device monitoring and control

SIMATIC S7-300 Digital Module SM 323

• Article No.: 6ES7323-1BL00-0AA0
• Type: 16 DI / 16 DO, 24 V DC, 0.5 A per channel, Total current 4 A
• Connector: 1 40-pole
• Isolation: Yes, Optocoupler

Supply Voltage

• Rated Value (DC): 24 V

• Permissible Range: 20.4 28.8 V

• Input Current (without load):

  • From L+: max. 80 mA

  • From Backplane Bus 5 V DC: max. 80 mA

• Power Loss: typ. 6.5 W

Digital Inputs (DI)

• Number: 16

• Input Type: DC, IEC 61131 type 1

• Voltage for Signal "0": -30 +5 V

• Voltage for Signal "1": 13 30 V

• Input Current for Signal "1": typ. 7 mA

• Input Delay (rated voltage):

  • "0""1": 1.2 4.8 ms

  • "1""0": 1.2 4.8 ms

• Simultaneously Controllable Inputs:

  • Horizontal: 16 (up to 40 C), 8 (up to 60 C)

  • Vertical: 16 (up to 40 C)

• Max Cable Length:

  • Shielded: 1,000 m

  • Unshielded: 600 m

Digital Outputs (DO)

• Number: 16

• Short-Circuit Protection: Yes (typ. response 1 A)

• Switching Capacity (Lamp Load): max. 5 W

• Load Resistance Range: 48 4 k

• Output Voltage for Signal "1": min. L+ - 0.8 V

• Output Current:

  • Rated Value: 0.5 A

  • Permissible Range: 5 mA 0.6 A

  • Minimum Load Current: 5 mA

  • Residual Current for Signal "0": max. 0.5 mA

• Output Delay (Resistive Load):

  • "0""1": max. 100 s

  • "1""0": max. 500 s

• Parallel Switching: Redundant control only (same group)

• Max Switching Frequency:

  • Resistive Load: 100 Hz

  • Inductive Load: 0.5 Hz

  • Lamp Load: 100 Hz

• Total Output Current per Group:

  • Horizontal: 4 A (up to 40 C), 3 A (up to 60 C)

  • Vertical: 2 A (up to 40 C)

Encoders

• Connectable: 2-wire sensor

• Max Quiescent Current: 1.5 mA

Diagnostics / Status

• Alarms: No

• Diagnostics Function: No

• LED Indicators:

  • Digital Input Status (Green): Yes

  • Digital Output Status (Green): Yes

Isolation & Potential Separation

• Digital Inputs:

  • Between channels: Yes

  • Between channels & backplane bus: Yes

• Digital Outputs:

  • Between channels: Yes

  • Between channels & backplane bus: Yes

• Isolation Tested: 500 V DC

Connection Method

• Front Connector: 40-pin

Mechanical Data

• Width: 40 mm

• Height: 125 mm

• Depth: 120 mm

• Weight: approx. 260 g 

Technical Details