Modicon Premium Discrete Input Modules | Schneider Electric TSXDEY16A2

The Schneider Electric TSXDEY16A2 is a 16-channel discrete input module engineered for the Modicon Premium Automation Platform. Operating at a nominal 24 V AC or 24 V DC (negative logic / source configuration), it interface field signals from switches, pushbuttons, and standard 2-wire or 3-wire proximity sensors into the PLC backplane. Designed in a standard single-slot Modicon Premium format, this resistive isolated module complies with EN/IEC 61131-2 Type 2 standards, delivering noise-immune digital signal acquisition for industrial automation systems.

Operating Characteristics and Signal Processing

The TSXDEY16A2 accepts 16 input channels categorized under Type 2 characteristics per IEC 61131-2. For AC operation, it operates across a 20 to 26 V AC sensor power supply range at network frequencies of 47 to 63 Hz (50/60 Hz nominal). When configured for DC operation, it operates with a 19 to 30 V DC supply using negative logic.

Threshold guarantees ensure clean transition detection and prevent false triggering in noisy industrial environments. State 1 (ON) is guaranteed when the input voltage reaches or exceeds 10 V AC (with a minimum current of 6 mA AC) or drops below 10 V DC (with a minimum current of 6.5 mA DC). State 0 (OFF) is guaranteed for voltages under 5 V AC (maximum current 4 mA AC) or above 19 V DC (maximum current 2 mA DC). The module exhibits an input impedance of 1600 ohms in State 1 and provides a fast hardware response time of 15 ms to 20 ms.

Power Dissipation, Isolation, and Physical Connection

Powering the TSXDEY16A2 internal logic requires 80 mA from the 5 V DC backplane bus. Field-side power dissipation depends on operating mode: AC power consumption remains low at 0.89 W AC, while DC power dissipation follows (1 W + 0.4 W × number of active channels).

Electrical isolation protects sensitive rack logic from field voltage transients. The module withstands a dielectric strength test of 1500 V AC at 50/60 Hz and provides an isolation resistance greater than 10 MOhm tested at 500 V DC. External field wiring connects directly via a removable screw terminal block (e.g., TSX BLY 01), supporting rapid module swaps without disturbing field conductors.

Technical Specifications

Frequently Asked Questions

Q: What type of wiring connections does the TSXDEY16A2 require?A: Field connections are established via a removable screw terminal block (such as the TSX BLY 01). This screw terminal block structure permits easy installation and quick module replacement during maintenance without disconnecting individual wires.

Q: Can the TSXDEY16A2 handle both AC and DC input signals?A: Yes, the module is dual-rated for 24 V AC (50/60 Hz) signals and 24 V DC negative logic (source) signals. Input voltage threshold and current state guarantees vary slightly between AC and DC modes, as detailed in the specifications.

Q: Is the TSXDEY16A2 directly compatible with 2-wire and 3-wire proximity sensors? A: Yes, it is compatible with 2-wire and 3-wire proximity sensors that conform to the EN/IEC 60947-5-2 standard.