About Siemens S7-1200 Sm1223 Digital 8di8do Expansion Module

Siemens S7-1200 SM1223 Digital 8DI/8DO Expansion Module

The Siemens S7-1200 SM1223 Digital 8DI/8DO Expansion Module, offered by Naksh Technology Solution LLP, is designed to expand the digital input and output capacity of Siemens S7-1200 PLCs.

It includes 8 digital inputs and 8 digital outputs, enabling efficient signal processing for various automation tasks.

This module integrates seamlessly with TIA Portal, offering enhanced flexibility and control for applications such as manufacturing, process automation, and building management systems.

Its compact design and reliable performance make it an essential component for modern industrial automation solutions.

SIMATIC S7-1200 Digital I/O SM 1223

Article No.: 6ES7223-1BH32-0XB0

Type: 8 DI / 8 DO, 24 V DC, Sink/Source, Transistor 0.5 A

General Information

• Product Type: SM 1223, 8 DI 24 V DC / 8 DO 24 V DC

• Input/Output Type: Sink/Source (DI), Transistor (DO)

Supply Voltage

• Rated Value: 24 V DC

• Permissible Range: 20.4 28.8 V DC

• Input Current (Backplane Bus 5V): Max 145 mA

• Power Loss: Typ. 2.5 W

Digital Inputs (DI)

• Number of Inputs: 8 (in groups of 2)

• Input Voltage:

  • Rated: 24 V DC

  • Signal 0: 5 V DC @ 1 mA

  • Signal 1: 15 V DC @ 2.54 mA

• Input Delay (parameterizable): 0.2 12.8 ms

• Input Characteristic Curve: IEC 61131, Type 1

• Max Simultaneously Controllable Inputs: 8

• Max Cable Length: Shielded 500 m, Unshielded 300 m

Digital Outputs (DO)

• Number of Outputs: 8 (in groups of 1)

• Type: Transistor, 24 V DC, 0.5 A

• Short-Circuit Protection: No (external protection required)

• Switching Capacity:

  • Resistive Load: Max 0.5 A

  • Lamp Load: Max 5 W

• Output Voltage: 24 V DC

• Output Current: Max 0.5 A

• Output Delay: 01 Max 50 s, 10 Max 200 s

• Total Current per Group: Max 4 A (horizontal installation, up to 50 C)

• Max Cable Length: Shielded 500 m, Unshielded 150 m

Diagnostics / Status

• Diagnostic Alarm: Yes

• Status LEDs: For inputs and outputs

• Potential Separation:

  • Between DI channels (groups of 2)

  • Between DO channels (groups of 1)

  • Between channels and backplane bus: 500 V AC

Protection & Standards

• Degree of Protection: IP20

• CE, CSA, UL, cULus, FM, RCM, KC: Yes

• Marine Approvals: Yes

Ambient Conditions

• Operating Temperature:

  • Horizontal: -20 60 C

  • Vertical: -20 50 C

• Storage / Transport: -40 70 C

• Relative Humidity: Max 95% (no condensation)

• Air Pressure: 660 1080 hPa

Mechanical Data

• Enclosure Material: Plastic

• Dimensions (W H D): 45 100 75 mm

• Weight: ~210 g 

FAQs of Siemens S7-1200 Sm1223 Digital 8di8do Expansion Module:

Technical Details