PLC autonomous controllable system structure of wind generating set

The utility model discloses a programmable logic controller (PLC) autonomous controllable system structure of a wind generating set, which is characterized in that a 12-slot clamping slot back plate is arranged in a cabin, and the 12 slot positions are sequentially defined as 1-12 slot positions from left to right; a first power supply module is installed in the first slot, a CPU module is installed in the second slot, two CAN communication modules are installed in the third slot and the fourth slot respectively, three cabin digital quantity input modules are installed in the fifth slot to the seventh slot respectively, a cabin digital quantity output module is installed in the eighth slot, and four cabin analog quantity input modules are installed in the ninth slot to the twelfth slot respectively; the clamping groove back plate with the eight grooves is arranged at the position of a tower footing, and the eight clamping grooves are sequentially defined as the first clamping groove to the eighth clamping gro