What it is and where it sits on the bus
The Mitsubishi FX2N-32DP-IF is a Profibus-DP interface unit in the FX2N family, designed to sit between an FX2N PLC base and a Profibus-DP master as a slave node rather than as a stand-alone controller. On the bus the unit exchanges up to 200 bytes of input and 200 bytes of output per cycle, which is the figure that governs how much I/O you can practically map to it before you need a second slave on the segment. The maximum number of controllable I/O points is 256, so on paper the unit can carry a full FX2N expansion rack of mixed digital and analog points through one Profibus node — though the bus-cycle payload is the harder ceiling in real designs.
Power, environment, and panel-side numbers
Power consumption is 30 VA, which is the figure that goes into cabinet heat-load calculations rather than a backplane budget on the PLC side. Operating temperature is 0 to 55 °C (32 to 131 °F) with 35 to 85% RH non-condensing; storage extends down to -20 °C and up to 70 °C (-4 to 158 °F) at 35 to 90% RH — the storage range governs how a spare sits on the shelf between callouts. Grounding resistance is 100 Ω or less, and insulation resistance is 5 MΩ minimum at 500 V DC between all terminals and ground — both are field-check figures the installer verifies at commissioning before powering the bus.
Footprint and handling
Footprint is 10.5 cm H x 8.7 cm W x 7.5 cm D, which sets the DIN-rail space the interface takes next to the FX2N base in the cabinet layout.