The data communication platform in smart building networks often includes paired wires, radio signals, and Ethernet lines that enable data transmission of communication frameworks between network nodes. The presence of noise, interference, and even the poor quality of communication platforms can jeopardize this transmission and cause incorrect data transfer in this platform. Adding Cyclic Redundancy Check (CRC) code to communication messages can play an important role in preventing these risks. Nevertheless, many of these code values, considerably, provide lower-than-expected fault detection capabilities. A comprehensive review shows that CRC polynomials used in many networks are either inefficient or just good options for certain message lengths. This paper proposes a new and flexible model for selecting these code values that can be used for fault-free transmission of various messages with different degrees of sensitivity and different lengths. Finally, a simulation is performed in MATLAB software environment for the effectiveness of the proposed model.