Product Details

Modicon AS-BDEP-216, also marked as DEP216, is a robust 16 point 24VDC discrete input module and reliable digital sensing card belonging to the Modicon TSX Compact legacy I/O series under AEG and Schneider legacy lineup. This tsx compact input card serves as the digital signal interface between field sensors and the Modicon 984 family CPU, receiving dry contact and 24 VDC on-off signals from limit switches, proximity sensors, push buttons, flow switches and safety interlock devices. It converts field binary status into digital register data that the PLC can read for sequence control, interlock logic and fault detection. Each input channel adopts filtered signal sampling, and the module supports grouped electrical isolation to protect the backplane from field voltage transients and noise. Individual LED indicators on the front clearly display the real-time status of every input point for fast on-site inspection, while the removable screw terminal block simplifies wiring, testing and module replacement. As a discontinued legacy spare, this discrete input module acts as a drop-in replacement to restore digital signal acquisition for ageing Modicon TSX Compact automation racks.

Basic Parameters

Brand: Modicon (AEG / Schneider legacy)

Model: AS-BDEP-216, alias DEP216

Product Type: 16‑Channel 24 VDC Discrete Input Module

Compatible Rack: Modicon TSX Compact backplane, Modicon 984 series PLC controllers

Input Quantity: 16 points, 24 VDC sinking / sourcing compatible

Signal Type: Dry contact or active 24 VDC discrete signal

Isolation: Group‑wise galvanic isolation

Termination: Removable screw terminal block

Indicator: Front LED for each input channel status

Mounting: Single‑slot rack mount, DIN rail compatible

Product Status: Discontinued, end of original production

Net Weight: Approximately 0.28 kg

Supported Functions

This discrete input module captures binary on/off signals from field sensing equipment and transmits sampled status to the host PLC backplane. The digital sensing card provides built‑in signal debounce filtering to suppress contact bounce and transient noise. This tsx compact input card supports continuous cyclic input scanning, and the CPU can utilise these input tags for interlock chains, start‑stop permissives, alarm triggering and batch sequence control. It runs built‑in self‑diagnosis to detect backplane communication failure and internal circuit anomalies. When communication with the CPU is lost, it holds the last valid input state to avoid unexpected logic jumps. It can be combined with relay output, analog and counter modules to build a complete legacy control system.

Core Functions

As a dedicated digital sensing card, this discrete input module translates physical field switch states into readable digital data for the PLC control logic. Its isolation design prevents field-side surge and noise from penetrating and damaging the central controller backplane. This tsx compact input card works as a direct spare to rebuild reliable digital signal detection for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Compact industrial plastic single-slot module

Protection: Input transient suppression, backplane watchdog monitoring

Anti-interference: Signal filtering and galvanic isolation for common-mode noise rejection

Compatibility: Modicon TSX Compact chassis, Modicon 984 CPUs, TSX Compact I/O modules

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note：Confirm TSX Compact backplane compatibility, 24VDC polarity, sink/source setting and channel debounce configuration before ordering.

This is from our current stock.

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