Data and object connectivity are the key and the critical component of industry 4.0, Connectivity of software, equipment, data ... are all massive data to be processed. Combined with cybersecurity, they become fundamental elements for creating intelligence in an industrial system that can increase the flexibility of production in addition to allocating resources more efficiently. In order to successfully transition to ecosystem 4.0, the industry must examine the new skills that are required and the need for qualified personnel. The fourth industrial revolution corresponds to the widespread use of sensors and intelligent agents to connect machines, components, processes and operators. This is generally called the digital factory or industry 4.0. It suggests a global system of effective communication between the modules of decision-making. World 4.0 will allow interaction between products, machines and even between machines (M2M). The product will also be able to communicate with machines in the production phase. This is called intelligent production, which will allow the modification and customization of products in their production phase.In this article, we present a communication model based on Modbus and multiband communication using NB-IOT, this communication model allows data to be exchanged between different industrial equipment (PLCs, SCADA systems, etc.) via MODBUS RTU and ASCII, via RS485, or via analog and digital inputs for sensors and actuators.