Schneider TM3XHSC202 is a Modicon TM3 high-speed counting module with 10 inputs and 8 source transistor outputs. Counting frequency hits 200 kHz — enough for most encoder or single-phase pulse counters on packaging or material handling lines. Draws 100 mA from the 5 V backplane bus plus 50 mA from the external 24 V supply. The block handles 2 main expert counting functions (frequency meter, period meter) plus up to 8 simple counting functions, with modulo or one-shot modes. Automatic reset after a fault means no manual intervention to clear — consider that for unbuffered lines.
Mounts on TH35-7.5 or TH35-15 DIN rail (IEC 60715), or on a plate/panel with the optional fixing kit. Overall footprint: 90 mm tall by 39 mm wide by 85 mm deep — two TM3 slices wide on the rail, which matters for smaller sub-panels. Inputs are sink or source; outputs are source only (24 VDC transistor). LED diagnostics: one per I/O point plus RUN and ERR indicators on the front. Protective cover snaps over the terminals; with cover in place, the module holds IP20 — standard for inside a cabinet, but not for open-air installation.