TSXDEY16D2 | Schneider Electric Modicon Premium Discrete Input Module

The TSXDEY16D2 is a 16-channel 24 V DC current-sink discrete input module designed for the Modicon Premium automation platform. Operating within a sensor power supply range of 19 to 30 V DC, this standard-format module provides current-sinking input channels compliant with EN/IEC 61131-2 Type 2 standards. It is engineered for industrial field monitoring, supporting direct interface with 2-wire and 3-wire proximity sensors conforming to EN/IEC 60947-5-2.

Input Voltage Thresholds and Signal Processing

Each of the 16 current-sinking channels draws a nominal input current of 7 mA with an input impedance of 4,000 Ohms at state 1. The module guarantees a logic state 1 (ON) at voltages of 11 V DC or higher with a minimum current of 6.5 mA. Conversely, a logic state 0 (OFF) is guaranteed when input voltage drops to 5 V DC or lower with current falling to 2 mA or below. Fast hardware filtering yields a rapid response time between 4 ms and 7 ms for time-critical discrete signal processing.

Power Characteristics and Physical Interface

Field signals connect to the front via a removable screw terminal block. The module draws 80 mA at 5 V DC and 135 mA at 24 V DC from the backplane system bus. Total module power dissipation is calculated as 1 W plus 0.15 W per active channel. Rated for IP20 protection, it maintains high electrical isolation with a dielectric strength of 1,500 V AC at 50/60 Hz and an insulation resistance under 10 MOhm at 500 V DC across an operating temperature range of 0 deg C to 60 deg C.

Frequently Asked Questions

Q: Is the TSXDEY16D2 input logic positive (sink) or negative (source)? A: The module features 24 V DC positive current-sink inputs (EN/IEC 61131-2 Type 2), which expect current to flow into the module input channel from positive-switching (PNP) field devices or sensors.

Q: How is the total thermal power dissipation calculated for the module? A: The base power dissipation is 1 W under power, plus an additional 0.15 W for each active energized input channel. For all 16 channels energized simultaneously, the maximum dissipation reaches approximately 3.4 W.