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Bachmann DIO16-C Digital I/O Module

1. Product Overview

2. Core Specifications

3. Key Functions

3.1 Combined Digital I/O for Space Efficiency

• 8 Inputs + 8 Outputs: Integrates 8 sinking (NPN) digital inputs and 8 sourcing (PNP) digital outputs in a 35mm-wide module—reducing the number of modules needed in the M1 rack by 50% compared to using separate DI and DO modules. This compact design is ideal for small control cabinets (e.g., on machine tools or mobile equipment).
• Mixed Signal Handling: Supports diverse industrial devices: inputs connect to NPN sensors (proximity switches, photoelectric sensors), while outputs control small actuators (solenoid valves, indicator lights, small relays) — eliminating the need for signal converters.

3.2 Reliable Signal Processing

• Configurable Input Filtering: 0.1ms–10ms adjustable digital filtering on input channels suppresses electrical noise and contact bounce from mechanical switches (e.g., limit switches). Prevents false triggers in noisy environments (e.g., near motors or welders).
• Fast Response Times: <1ms input response and <0.1ms output response ensure timely signal processing for time-critical tasks (e.g., stopping a conveyor when a jam is detected by a photoelectric sensor).

3.3 Output Protection & Safety

• Overcurrent Protection: Each output channel includes built-in overcurrent protection (trips at ~0.6A) to prevent damage from short circuits (e.g., a faulty solenoid valve). The module automatically resets after the fault is removed, reducing downtime.
• Isolation Barriers: 500V AC channel-to-channel isolation and 1kV AC signal-to-ground isolation prevent fault propagation (e.g., a shorted output won’t affect input signals) and protect the M1 CPU from voltage spikes.

3.4 Seamless Integration with M1 System

• Plug-and-Play Configuration: Detected automatically by the M1 controller when installed in the rack. Configuration (input filters, output behavior) is managed via Bachmann’s M1 Configurator software—no hardware jumpers required, simplifying setup.
• Diagnostic Feedback: Transmits channel status (e.g., "Input 3: Active", "Output 5: Overcurrent") to the M1 CPU via the internal high-speed bus. Enables remote monitoring and troubleshooting through the M1 HMI or SCADA system.

4. Typical Applications

• Small Manufacturing Machines: Controls a desktop 3D printer’s peripherals—8 inputs monitor limit switches (build plate home position) and door interlocks; 8 outputs control heaters, fans, and indicator lights.
• Material Handling Conveyors: Manages a small conveyor section—inputs detect package presence (photoelectric sensors) and motor overloads; outputs control conveyor motors, stop buttons, and alarm buzzers.
• Building Automation: Regulates a small office’s HVAC and lighting—inputs read thermostat status and door/window contacts; outputs control air handlers, lights, and security locks.
• Agricultural Equipment: Monitors and controls a greenhouse ventilation system—inputs track temperature sensors and wind speed switches; outputs activate vents, fans, and sprinkler valves.

5. Usage Notes

1. Wiring Guidelines:
   • Use 0.14–0.5mm² shielded cables for input wiring to reduce EMI. Ground the shield at the terminal block end only to avoid ground loops.
   • For outputs, use 0.5–1.0mm² cables for devices drawing >0.2A (e.g., small relays) to prevent voltage drop. Ensure total combined output current does not exceed 4A.
2. Input/Output Compatibility:
   • Inputs are sinking (NPN) only—connect to NPN sensors or switches. For PNP sensors, use an external NPN-PNP converter or replace with a compatible sensor.
   • Outputs are sourcing (PNP) and designed for 24V DC devices. Do not connect AC devices or loads exceeding 0.5A per channel (use an external relay for higher currents).
3. Filter Configuration:
   • Set input filters based on sensor type: 0.1ms–1ms for solid-state sensors (photoelectric switches); 5ms–10ms for mechanical switches (limit switches) to suppress contact bounce. Test with actual sensors to validate settings.
4. Protection & Maintenance:
   • Inspect output channels for overcurrent faults via M1 Configurator—frequent trips indicate a faulty load (e.g., shorted solenoid) that needs replacement.
   • Clean module terminals quarterly with a dry brush to remove dust. Tighten terminal screws to 0.5–0.8N·m to prevent loose connections from vibration.
5. Environmental Considerations:
   • Mount the module in a cabinet away from heat sources (power supplies, inverters) to maintain the -25°C~+60°C operating range.
   • In humid environments (e.g., greenhouses), use a dehumidifier to keep relative humidity <85% (non-condensing) to prevent terminal corrosion

The structure and details of the product：

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