The ABB DI‑S is a high-integrity safety digital input module from the AC-S pro series. It offers safety-rated digital inputs and non-safety pulse outputs, configurable for SIL full operation or SIL with discrepancy monitoring. Designed for PROFIsafe systems, it ensures robust diagnostics and high-speed safety integration.

Key Features:

Model / Part No.: DI‑S – SAPB
Safety Input Channels:
- digital inputs at  V DC, rated SIL
- SIL available for eight inputs when using discrepancy time monitoring
Pulse Outputs: transistor pulse/test outputs for diagnostic signaling, up to  mA each
Configurable Input Filtering: Adjustable – ms for input signal processing
Supply & Consumption:
- Powered by  V DC (.–. V), typical consumption ~ mA
- Built-in overload and reverse-polarity protection
Communication: PROFIsafe V over PROFINET via compatible AC-S bus interfaces
Physical & Environmental:
- Compact (. ×  ×  mm), IP rated,  g weight
- Operates – °C (– °C to + °C XC variant), supports altitudes up to , m
Diagnostics & Protection:
- LED indicators per input, error and power LEDs
- Test pulse outputs support health monitoring

ABB – DI‑S – Safety Digital Input Module, Channel VDC (SAPB)