OPC server allow data exchange between Modbus devices and SCADA systems and other OPC clients. Supported Modbus RTU, TCP, ASCII protocol specifications in single software product. Features: Supported MODBUS functions: 1,2,3,4,5,6,15,16 Support COM ports, TCP connection Opportunity to poll tag groups of the device at varying intervals Run as Windows OS Service Group setting of tags Ability to survey and view tag values without clients