Intelligent online distribution load balancing process controller

The invention discloses an intelligent online distribution load balancing process controller. The controller comprises a terminal wiring unit, a power supply system circuit, a single-chip microcomputer control circuit, an input signal sampling circuit, a communication interface circuit, an alarm relay control circuit and a digital DI input circuit, wherein the power supply system circuit, the single-chip microcomputer control circuit, the input signal sampling circuit, the communication interface circuit, the alarm relay control circuit and the digital DI input circuit are all electrically connected with the terminal wiring unit. The controller has three selectable working modes: a single analog signal control input mode, a digital communication control mode and an intelligent analog signal independent online control mode. At most 12 slave stations are supported to work, the output period of the slave stations can be set within 2-60 seconds, the slave stations are operated through a communication write output