opc systems.net is a complete suite of scada and hmi software for visual studio.net applications developed with vb or c#. opc systems.net software includes opc wpf.net, opc controls.net, opc trend.net, opc alarm.net, opc gauge.net, opc database.net, opc recipe.net, opc report.net, opc web controls.net, opc web trend.net, opc web alarm.net, opc route.net, and opc client.net.