using PLCCommunication.Impl; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace PLCCommunication { public static class PLCCommunicationFactory { public static IPLCCommunicationService pLCCommunicationService = null; public static IPLCCommunicationService Instance { get { if (pLCCommunicationService == null) { pLCCommunicationService = new DeltaCommunicationService(); pLCCommunicationService.Connection("192.168.0.50",502); } return pLCCommunicationService; } } } }