Schneider Electric TWD-DMM8DRT Programmable Logic Controller Module

Schneider Electric TWDDMM8DRT is a Twido discrete I/O expansion module that adds 4 digital inputs and 4 relay outputs to a Twido PLC system, all operating on 24 V DC logic. The unit supports both sink (positive logic) and source (negative logic) input wiring, with COM0 and COM1 not internally connected, and input channel A designated for sinking and B for sourcing. Each of the four relay outputs is rated for up to 2 A, while the module’s combined output power supply can handle up to 7 A. Dimensions are compact: 20 mm high, 95 mm long, and 70 mm wide, with an approximate weight of 0.08 kg. This 8-channel I/O module is designed for small automation tasks requiring local sensing and actuation, and it integrates with Schneider Electric’s Twido family to extend I/O capacity. The TWDDMM8DRT product was discontinued for commercialization on December 31, 2016, with standard service ending December 31, 2021, after which only repair and parts support were available.