Schneider Electric AS-BDEP-218 IO Expansion Module

The Schneider Electric AS‑BDEP‑218 IO Expansion Module is a discrete I/O expansion unit designed to extend input and output capacity for Modicon PLCs in industrial automation systems. It provides 18 digital points (typical) with a 24 VDC input and outputs that can be digital transistor or relay (platform dependent), connected through a field-terminal block to the PLC rack backplane/interface. Mount it on a DIN rail or in a rack and monitor status with LEDs for I/O and module health, supporting industrial logic control and digital expansion across machines and processes. Compatible with Modicon PLC platforms (e.g., Premium, Quantum), the AS‑BDEP‑218 is commonly used in packaging lines, material handling systems, conveyor controls, and assembly machines to add reliable discrete I/O; common replacements include BMXDDI1602 and 1734‑IB8.