In this paper it is presented control system of distributed energy resources (DER) based on Ethernet POWERLINK Protocol. Authors develop a common method for communicating with The Inverter-Based Microgrid System. This paper presents the optimal storage sharing control method of grid connected generation system. This system consists of photovoltaic panels (PV), windmill with induction generator (WG), supercapacitors (SC), AGM battery, controllable load, power converters and electric power system. These components can be connected to make a micro-grid system controlled by Energy Management System based on DSP, ARM 9 processors and FPGA hardware. In a case study, it is analyzed how Ethernet POWERLINK Protocol can be used to build a communication channels between converters, load and management system. Simulation results are presented to demonstrate reliability of proposed control systems. The whole control scheme and communication protocol are implemented on a DSP and FPGA.