MasterOPC Server is a communication gateway for the integration of equipment and control systems of any manufacturer. MasterOPC software products are available as two solutions. The first solution refers to the modular Multi-Protocol MasterOPC Server. This server can be used to poll devices using various protocols and list of these protocols is continuously updated. The second solution refers to the Modbus Universal MasterOPC Server, which allows to poll devices using the most popular industrial data transfer protocol Modbus RTU/ASCII/TCP.