There area lot of mobile computer devices with a variety of applications and users Tend to use them more. Due to the limitations of mobile devices, running most of the procedures are impossible. To resolve this problem, mobile devices can be connected to the grid, to use the facilities of grid. On the other hand the communication mechanisms are different for each device and they cannot be connected to grid in a stable procedure. In addition, the mobile devices are moving from one place to another and grid cannot manage the successive connection-disconnection of communication. Main idea of this paper is to design an interface for controlling communications between these devices and grid. This interface allows each instrument to be connected to the grid with its own mechanism. For this purpose a database is used in interface. Simulation results show that transaction overhead is low.