6ES7223-1PL32-0XB0 SM 1223 16DI/16DO Relay Module 24V DC | Siemens

The Original New Siemens 6ES7223-1PL32-0XB0 SIMATIC S7-1200 SM 1223 Digital I/O Module is a combined digital input/output signal module designed for flexible I/O expansion in S7-1200 automation systems. It provides 16 digital inputs (24V DC, sink/source configurable) and 16 relay outputs (2A per channel), making it ideal for mixed-signal machine control applications requiring isolated AC/DC load switching. The relay outputs offer complete electrical isolation between the PLC logic and field-side loads, eliminating the need for external interposing relays in many applications. Fully compatible with all S7-1200 CPUs (except CPU 1211C).

Core Engineering Highlights:
16 digital inputs (24V DC, sink/source) | 16 relay outputs (2A per channel) | Inputs in 2 groups of 8 | Outputs in 4 groups of 4 | Configurable input filter: 0.2–12.8 ms | 10 ms output response time | 180 mA backplane bus current | 10 W power loss | 24V DC rated supply | IP20 protection | –20°C to +60°C operating | 500 m shielded cable length (inputs) | Input characteristic type 1 per IEC 61131

Key Features:

• Original New Siemens 6ES7223-1PL32-0XB0 module

• 16 digital inputs (24V DC, sink/source configurable)

• 16 relay outputs (normally open, 2A per channel)

• Inputs organized in 2 isolated groups of 8

• Outputs organized in 4 groups of 4

• Configurable input filter: 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 ms

• 10 ms output response time (ON and OFF)

• 24V DC rated supply voltage (20.4–28.8V range)

• 180 mA backplane bus current consumption

• 10 W typical power loss

• 500 m shielded / 300 m unshielded maximum cable length (inputs)

• 500 m shielded / 150 m unshielded maximum cable length (outputs)

• IEC 61131 Type 1 input characteristic

• All 16 inputs simultaneously controllable up to 40°C

• LED status indication for inputs and outputs

• Removable terminal block for simplified wiring

• IP20 protection for control cabinet installation

• Wide operating temperature: –20°C to +60°C

Applications:

• Mixed-signal machine control with sensor inputs and relay output switching

• Solenoid valve and contactor control

• Indicator lamp and alarm control

• Applications requiring isolated AC/DC load switching

• Conveyor and material handling systems

• Packaging machinery and assembly lines

• Factory automation and process control systems

• High-density I/O expansion for S7-1200 systems

Technical Specifications:

Power Supply:

Digital Inputs:

Digital Outputs (Relay):

Physical & Environmental:

System Compatibility:

• Siemens SIMATIC S7-1200 controllers (all CPUs except CPU 1211C)

• S7-1200 signal modules (SM) for I/O expansion

• TIA Portal engineering framework (STEP 7 Basic / Professional)

• 24V DC control systems

Typical System Architecture:
S7-1200 CPU (e.g., CPU 1214C DC/DC/Relay / CPU 1215C)
↓
6ES7223-1PL32-0XB0 SM 1223 Digital I/O Module (16DI/16DO relay, 70 mm width)
│
├── Digital Inputs (16 channels, 2 groups of 8) → Sensors, Pushbuttons, Limit Switches
├── Relay Outputs (16 channels, 4 groups of 4) → Solenoids, Contactors, Indicator Lamps
│
↓
Additional S7-1200 Signal Modules (SM) / Signal Boards (SB) / Communication Modules (CM)
↓
TIA Portal Engineering (STEP 7 Basic / Professional)

Related Products:

• 6ES7223-1BH32-0XB0 – SM 1223 8DI/8DO relay combination (lower density)

• 6ES7223-1PL32-0XB0 – SM 1223 16DI/16DO relay (current model)

• 6ES7222-1HH32-0XB0 – SM 1222 16DO relay output module (outputs only)

• 6ES7221-1BH32-0XB0 – SM 1221 16DI digital input module (inputs only)

• 6ES7223-1BL32-0XB0 – SM 1223 16DI/16DO transistor outputs version

• 6ES7214-1HG40-0XB0 – CPU 1214C DC/DC/Relay (14DI/10DO/2AI)

• 6ES7274-1XF30-0XA0 – SIMATIC Memory Card for S7-1200

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Siemens, SIMATIC, S7-1200, and TIA Portal are trademarks of Siemens AG.