The Siemens 3RG9002-0DA00 is an AS-Interface F90 module packing 4 digital inputs and 4 digital outputs into a 90 mm wide, 75 mm high, 37 mm deep IP20 housing that snaps onto 35 mm standard rail inside a control cabinet. Inputs are PNP transistor type (2- and 3-conductor sensor hookup), switching on above 10 V and off below 1.5 mA, with a minimum signal of 5 mA. Outputs are solid-state DC, fed from a separate 24 V DC auxiliary supply (20 to 30 V DC, PELV per VDE 0106, protection class III) connected via screw terminals on the module. Total output current across all four channels is 6 A; the module draws up to 270 mA from the AS-Interface bus for its own logic and sensor supply, which is short-circuit and overload protected. Built-in watchdog, short-circuit protection, and induction protection round out the self-protection suite.
Snaps onto 35 mm standard rail. Addressing is set via the integrated addressing socket on the module face. The ID/ID2 code is 0/F; I/O configuration is 7. Two LED clusters show status: yellow for individual I/O state, and a green/red dual LED for AS-Interface bus and diagnostics.