General Information

• Brand: Siemens
• Part Number: 6ES7623-1SB01-0AC0
• Product Series: SIMATIC S7-1500
• Product Type: Digital Input/Output (I/O) Module (mixed 16DI/16DO)
• Compatibility: Exclusively works with S7-1500 CPU systems; configurable via TIA Portal (V13 or higher) software.
• Module Family: SM 1232 (analog output) variant for S7-1500, optimized for compact integration in control cabinets.

Technical Specifications

1. I/O Configuration

• Digital Inputs (DI): 16 channels
  • Input Voltage: 24V DC (sinking/sourcing, PNP/NPN compatible)
  • Input Current: Typical 7mA at 24V DC
  • Response Time: ≤ 10ms (standard mode); optional fast mode (≤ 0.1ms) for time-critical signals
  • Input State Detection: Off (0V–5V DC), On (11V–30V DC)
  • Protection: Polarity reversal protection and short-circuit protection (each channel)
• Digital Outputs (DO): 16 channels
  • Output Type: Transistor output (MOSFET, suitable for DC loads)
  • Output Voltage: 24V DC (fixed)
  • Rated Output Current: 0.5A per channel; 8A total for all channels (group protection)
  • Maximum Output Current: 1A per channel (short-duration peak)
  • Switching Frequency: Up to 1kHz (resistive loads), suitable for medium-speed switching tasks
  • Protection: Short-circuit protection and overload protection (each channel)

2. Power Supply

• Module Power: Powered via the S7-1500 backplane bus (5V DC from CPU, no external power required for module operation)
• Load Power: Separate external 24V DC power supply required for output loads (minimum 20.4V DC, maximum 28.8V DC)

3. Operating Environment

• Temperature Range:
  • Operating: -10°C to +60°C (suitable for most industrial on-site conditions)
  • Storage: -25°C to +70°C
• Humidity: 5%–95% (non-condensing, compliant with IEC 61131-2)
• Electromagnetic Compatibility (EMC): Complies with EN 61000-6-2 (industrial immunity) and EN 61000-6-4 (emission), resisting interference from motors, drives, and other industrial equipment
• Vibration/Shock Resistance:
  • Vibration: 5Hz–150Hz, 0.5g acceleration (IEC 60068-2-6)
  • Shock: 15g acceleration (11ms duration, IEC 60068-2-27)

4. Mechanical Characteristics

• Dimensions (W×H×D): 45mm × 100mm × 75mm (compact design, saves control cabinet space)
• Mounting Method: DIN rail mounting (conforms to IEC 60715, 35mm standard rail)
• Protection Level: IP20 (front panel; prevents dust and small debris from entering internal components)
• Connection Type: Spring-loaded terminals (tool-free wiring, quick and reliable for industrial installation)

Functional Features

1. Mixed I/O Integration: Combines 16 digital inputs and 16 transistor outputs in one module, reducing the number of modules needed for systems requiring both signal acquisition and DC load control.
2. High Reliability: Transistor outputs offer longer service life than relays (no mechanical wear) and support medium switching frequencies, ideal for repetitive tasks (e.g., valve actuation, sensor triggering).
3. Status Monitoring: Equipped with LED indicators for each channel (green: On, off: Off) and a global SF (System Fault) LED, enabling quick visual inspection of module operation and fault diagnosis.
4. Flexible Configuration: Input response time and output current limits can be adjusted via TIA Portal, adapting to different application requirements (e.g., fast response for emergency stops, low current for small sensors).
5. Diagnostic Functions: Built-in channel-level diagnostics (short circuit, overload, polarity reversal) send fault signals to the S7-1500 CPU, allowing remote monitoring and reducing on-site troubleshooting time.

Application Areas

• Medium-to-Large Automation Systems: Ideal for S7-1500-based systems in automotive manufacturing, electronic component production, and logistics (e.g., automated guided vehicle (AGV) control).
• DC Load Control: Used to drive 24V DC loads such as solenoid valves, small motors, indicator lights, and proximity sensors in production lines.
• Process Industry: Applied in chemical, pharmaceutical, and food processing plants to collect status signals (e.g., valve position, tank level) and control auxiliary DC equipment.
• Building Automation: Suitable for smart factory HVAC systems, lighting control, and access control systems, integrating digital I/O functions in a compact module.