Turck BL67-8DI-PD 8-Channel Digital Input Module

Turck BL67-8DI-PD is an 8-channel digital input module designed for Turck's BL67 distributed fieldbus I/O systems. It collects 24 VDC PNP (sourcing) digital inputs from field devices and transmits them to PLCs and higher-level control networks, enabling decentralized I/O at the machine level in harsh industrial environments and reducing cabinet wiring. The module provides eight digital inputs with galvanic isolation via optocouplers, channel diagnostics, and wire-break monitoring, and it features adjustable input filter times and invertible inputs for flexible signal conditioning. It mounts on a BL67 modular base module and is compatible with M8, M12, and M23 base modules. Rated for -40°C to +70°C and IP67 protection, it weighs approximately 55 g. Common applications include interfacing proximity sensors, photoelectric sensors, pushbuttons, limit switches, and machine status signals in conveyors, packaging lines, automotive assembly, and logistics automation. Common replacements include Turck BL67-4DI4DO-PD.