Hi Drinausaur,
FX30 IoT Connector mapping is available on the FX30 user guide table 3-9.
IoT Card GPIO1 is mapped on FX30 GPIO42.
IoT Card GPIO2 is mapped on FX30 GPIO33.
IoT Card GPIO3 is mapped on FX30 GPIO13.
IoT Card GPIO4 is mapped on FX30 GPIO8.
Regards