Programmable controller

The embodiment of the utility model provides a programmable controller. The programmable controller comprises a controller body. The controller body is provided with a plurality of communication connection ports; a wiring terminal; the wiring terminal is detachably connected to the controller body and is electrically connected with one of the communication connection ports; the wiring terminal is provided with a first end and a second end which are far away from each other; a rotating assembly; the rotating assembly is arranged at the first end of the wiring terminal, so that the wiring terminal can rotate relative to the controller body; a locking assembly; and the clamping assembly is arranged at the second end of the wiring terminal, so that the wiring terminal is fixed on the controller body. Through the design of adding the rotating assembly and the clamping assembly, the detachable installation of the wiring terminal and the controller body is realized, so that the rapid replacement of the wiring termin