Category Parameter Specification / Typical Value General Characteristics Module Type Digital Input (DI) Number of Channels Typically 4 channels Connection Technology M12 Connectors (likely 4-pin) Input Characteristics Input Voltage 24 V DC (Nominal) Input Type Sourcing (PNP) / High-side switching "1" Signal Level Typically 15...30 V DC (High-level input) "0" Signal Level Typically -3...5 V DC (Low-level input) Input Current per Channel Typically 2...10 mA Electrical Isolation Channel-to-Channel Yes, typically isolated Channel-to-Bus Yes, typically isolated Performance Update Time < 1 ms per channel (typical) Filter Time Configurable (e.g., 0.1/0.5/1/3 ms) to suppress noise Status Indication LED per channel (for input status) General Data Backplane Bus Proprietary (for XSystem platform) Supply Voltage (from backplane) 24 V DC Operating Temperature 0 °C to +55 °C Protection Rating (with connector) IP67 Standards IEC 61131-2, UL 508

The ABB DSAI155 Thermocouple Module is designed for precise temperature sensing in industrial automation systems. It ensures reliable and accurate data collection, essential for process control in manufacturing environments.

The X20DI9371 is a high-performance digital input module designed for B&R's X20 automation platform, featuring 32 isolated 24V DC input channels in a compact form factor. This industrial-grade module provides reliable signal acquisition for demanding automation applications.