Offered as user-installable, plug-and-play option for SM3300 Series programmable DC power supplies, INT MOD SIM (Simulation Interface Module) offers custom programmable table for complex I-V curve simulation. PV simulation interface can also be used for simulation of foldback current limit and testing dynamic Maximum Power Point Trackers (MPPT) efficiency to EN 50530 standard. Features include Windows Web interface GUI and compensation for voltage drop in load leads without sense wires.