1. Technical Parameters

• Number of Input Channels: 16 independent digital input channels
• Input Voltage: 24V DC (nominal); supports a wide voltage range of 18–32V DC to adapt to industrial power fluctuations
• Input Signal Type: Supports dry contacts (normally open/normally closed, configurable) and wet contacts (active signals)
• Input Current: Typical operating current of 5–10mA per channel to ensure stable signal detection
• Response Time: <1ms, enabling rapid capture of fast-switching signals such as emergency stop buttons and limit switches
• Isolation Performance: Galvanic isolation is adopted between channels and between channels and system ground. The isolation voltage is 250V AC (between channels) and 500V AC (to ground), effectively suppressing interference and ground loops
• Overvoltage Protection: Each channel can withstand continuous overvoltage of 150V DC or short-term (1 second) overvoltage of 250V AC, resisting voltage surges from on-site wiring
• Environmental Adaptability: Operating temperature ranges from -40°C to +70°C; humidity ranges from 5% to 95% RH (non-condensing). It is resistant to vibration (5g, 10–2000Hz) and shock (30g, 11ms), making it suitable for harsh industrial environments

2. Product Features

• High Reliability: Adopts a Triple Modular Redundancy (TMR) architecture. Each input signal is sampled and processed in parallel by three independent circuits, and the "2-out-of-3" voting logic is used to ensure data accuracy. Even if a single circuit fails, the system operation remains unaffected, meeting the requirements of SIL 3 safety integrity level
• Strong Anti-Interference Ability: Built-in EMI filtering and isolation design, which can effectively resist electromagnetic noise generated by equipment such as motors and frequency converters, and prevent false actions triggered by spurious signals
• Comprehensive Diagnostic Functions: Real-time monitoring of faults such as channel open circuits, short circuits, and power abnormalities. Faults are quickly fed back through front-panel LED indicators (per-channel status: green for normal, red for fault) and system alarms, facilitating fault location
• Hot-Swappable Support: The module supports on-line hot swapping, allowing maintenance without shutting down the system. This reduces production downtime and improves system availability
• Flexible Configuration: Through Triconex TriStation 1131 software, users can configure input types (dry/wet contacts) and response parameters to adapt to different on-site devices (e.g., proximity switches, pressure switches)