About Siemens S7 1200 SM1223 Digital 16DI16DO Expansion Module

The Siemens S7-1200 SM1223 Digital 16DI/16DO Expansion Moduleby Naksh Technology Solution LLP enhances the digital input and output capacity of Siemens S7-1200 PLCs. It features16 digital inputsand16 digital outputs, enabling seamless signal processing for automation and industrial control applications. Compatible with TIA Portal, this module ensures smooth integration, improved flexibility, and efficient operation in manufacturing, process control, and building automation systems. Its compact design and high reliability make it a valuable addition to industrial automation setups.

SIMATIC S7-1200, SM 1223

• Article No.: 6ES7223-1BL32-0XB0
• Digital I/O: 16 DI / 16 DO
• Input: 24 V DC, Sink/Source
• Output: Transistor 0.5 A

General Information

• Product type: SM 1223, DI 16x24 V DC, DQ 16x24 V DC

• Supply voltage: 24 V DC (Permissible: 20.4 28.8 V)

• Input current (from backplane bus 5 V DC): max 185 mA

• Power loss: 4.5 W

Digital Inputs (DI)

• Number: 16 (grouped in 2)

• Input voltage: 24 V DC

  • Signal 0: 5 V, 1 mA

  • Signal 1: 15 V, 2.54 mA

• Input delay: selectable, 0.2 12.8 ms

• Max cable length:

  • Shielded: 500 m

  • Unshielded: 300 m

• Input characteristic: IEC 61131 Type 1

Digital Outputs (DO)

• Number: 16 (grouped in 1)

• Type: Transistor, 0.5 A

• Output voltage: 24 V DC

  • Signal 0: max 0.1 V (10 k load)

  • Signal 1: min 20 V DC

• Output current: max 0.5 A per channel

• Total current per group (up to 50 C): 8 A

• Switching capacity:

  • Resistive load: 0.5 A

  • Lamp load: 5 W

• Output delay:

  • 0 1: max 50 s

  • 1 0: max 200 s

• Short-circuit protection: external

Relay Outputs (Optional)

• Switching capacity: 0.5 A (resistive/inductive), 5 W (lamp)

• Max cable length: shielded 500 m, unshielded 150 m

Potential Separation

• Digital inputs: separated in groups of 2

• Digital outputs: separated in groups of 1

• Inputs/outputs vs. backplane bus: 500 V AC

Diagnostics / LEDs

• Diagnostic alarm: Yes

• LEDs: Input status, Output status

Ambient Conditions

• Operation: -20 60 C

  • Horizontal: -20 60 C

  • Vertical: -20 50 C

• Storage/transport: -40 70 C

• Max permissible temperature change: 3C/min

• Relative humidity: max 95 % (non-condensing)

• Free fall: max 0.3 m (5x in package)

• Air pressure (storage/transport): 660 1080 hPa

Mechanics / Material

• Enclosure: Plastic (front)

• Dimensions (W H D): 70 100 75 mm

• Weight: 310 g

Degree of Protection

• IP20

Technical Details