Abstract Modern manufacturing systems are complex systems composed of the following components: numerically controlled manufacturing machines, automated material handling systems, and a computerized control system that supervises the operation of the manufacturing system. In order to operate properly there must be a sophisticated, hierarchical communication layer among the components. It is desirable to have a tool that can capture all aspects of the manufacturing system, thus being able to model, simulate, analyze and even drive it. The modeling of concurrent asynchronous operations of a complex information intensive manufacturing system has today very limited tools. This paper presents a new approach towards modeling of Advanced Manufacturing Systems (AMS). The modeling vehicle is a dialect of concurrent logic programming language called FCP (Flat Concurrent Prolog). This approach, in addition to the more commonly modeled features, enables the modeler to capture the dynamic nature of a system including conflicts, deadlocks, communication protocols, concurrency and information transfer.