In this work the task of production key performance indicators' values reconciliation is set, that takes into account their hierarchical structure and interrelationships. The structural scheme of a hierarchical multiagent system for production control was developed where horizontal (sibling) and vertical (multilevel) connections between agents are shown. Then possible situations of sibling and multilevel interactions are described, such as changing of a task by the controlling agent, sending notifications about the impossibility of a maintaining current operation mode, and others. The agents’ data exchange algorithms, which are used in order to optimise key performance indicators are shown. The implementation of developed algorithms using client-server architecture is shown, which also includes at the bottom level data exchange between the agents and programmable logic controllers. The single bytes command system for agents interactions is described.