About Siemens S7-1200 8DI 8DO Relay Expansion Module

Data Sheet 6ES7223-1BH32-0XB0

SIMATIC S7-1200 SM 1223 Digital I/O Module (8 DI / 8 DO)

General Information

• Product type: SM 1223, DI 824 V DC, DQ 824 V DC

• Supply voltage (DC): 24 V

• Permissible range: 20.428.8 V

Input Current

• From backplane bus (5 V DC): max. 145 mA

• From load voltage L+ (no load), per channel: max. 4 mA

Digital Inputs

• Number of inputs: 8 (groups of 2)

• Input type: IEC 61131 Type 1

Simultaneously Controllable Inputs

• Up to 40 C: max. 8

• Up to 50 C (horizontal): max. 8

• Vertical up to 40 C: max. 8

Input Voltage

• Type: DC

• Rated value: 24 V

• Signal 0: 5 V at 1 mA

• Signal 1: 15 V at 2.5 mA

Input Current

• Signal 0 (max quiescent): 1 mA

• Signal 1 (min): 2.5 mA

• Signal 1 (typ): 4 mA

Input Delay (Selectable)

• 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 12.8 ms

• Parameterizable in groups of 4

Cable Length

• Shielded: max. 500 m

• Unshielded: max. 300 m

Digital Outputs

• Number of outputs: 8 (groups of 1)

• Short-circuit protection: No (must be external)

• Inductive shutdown limit: L+ (48 V)

Switching Capacity

• Resistive load: max. 0.5 A

• Lamp load: max. 5 W

Output Voltage

• Rated: 24 V

• Signal 0: max. 0.1 V (10 k load)

• Signal 1: min. 20 V

Output Current

• Rated per channel: 0.5 A

• Max per channel: 0.5 A

• Residual current (0): max. 10 A

Output Delay

• 0 1: max. 50 s

• 1 0: max. 200 s

Total Current (Horizontal Installation)

• Up to 50 C: max. 4 A

Cable Length

• Shielded: max. 500 m

• Unshielded: max. 150 m

Diagnostics & LEDs

• Diagnostic alarms: Yes

• LED indicators:

  • Input status

  • Output status

Potential Separation

Digital Inputs

• Groups of 2

Digital Outputs

• Groups of 1

• To backplane bus: 500 V AC

Protection & Approvals

• IP rating: IP20

• Approvals: CE, CSA, UL, cULus, FM, RCM, KC, Marine approvals

Environmental Data

Global Warming Potential

• Total: 123 kg CO

• Production: 12.1 kg CO

• Operation: 111 kg CO

• End of life: 0.434 kg CO

Ambient Conditions

• Operating temperature: 20 C to +60 C

• Vertical: up to +50 C

• Storage/transport: 40 C to +70 C

• Humidity: up to 95% (no condensation)

• Free fall: 0.3 m (5 times)

Mechanical Data

• Front connector: Required

• Material: Plastic front

• Dimensions: 45 100 75 mm (WHD)

• Weight: approx. 210 g 

Technical Details