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
