The SCADA(Supervisory Control And Data Acquisition) system is used the condition of the system which is in the remote area with the use which acquires a watch control and a data. Currently the SCADA system is used from the industry which relates in Water Power and Electronic Power. The communication protocol of the system for it is used in the SCADA system the DNP3.0, IEC-61850, DLMS comes to be representative used. This paper is analysis about DNP3.0, generate DNP3.0 Message, and then DNP3.0 call generator.