Description
Overview:
The DI831 is a high-performance 16-channel digital input module designed for use in S800 I/O systems. It accepts 48 V DC input signals and provides optical isolation, EMC protection, and input state indication LEDs for easy monitoring. The module is capable of cyclical self-diagnostics to ensure high reliability and performance in industrial environments. It supports input signal filtering, which is useful for eliminating unwanted short pulses, enhancing the accuracy and stability of input readings.
Features:
- 16 Input Channels: Supports 48 V DC signals with current sinking functionality.
- Isolated Groups: Features 2 isolated groups of 8 channels with integrated voltage supervision for robust signal handling.
- Diagnostic Functions: Includes process power supply supervision, event queue monitoring, and time synchronization checks to ensure the system’s integrity.
- Input Status Indicators: Each channel is equipped with an LED indicator for clear visual status monitoring.
- Sequence of Event (SOE): Advanced functionality for event tracking, allowing detailed logging of input signals.
- Shutter Filter: Configurable digital filtering with a time range of 0-100 ms, enabling the module to filter out short pulses and only pass relevant signals.
Technical Specifications:
- Brand: ABB
- Model: DI831
- Series: S800 I/O
- Input Voltage Range: 36 to 60 V DC
- Nominal Input Voltage: 48 V DC
- Input Current: 4 mA at 48 V DC
- Number of Channels: 16
- Channel Configuration: 2 isolated groups of 8 channels
- Diagnostic Functions:
- Process power supply supervision
- Event queue full detection
- Time synchronization missing detection
- Filtering: Adjustable digital filter time (0 to 100 ms)
- Input Status Indicators: LED per channel for visual state monitoring
- Protection Features: Includes EMC protection and optical isolation barrier
