opc ua c#订阅报错【记录】

引发的异常:“Opc.Ua.ServiceResultException”(位于 Opc.Ua.Core.dll 中)
批量订阅节点数据失败！！！BadSecureChannelClosedOpc.Ua.ServiceResultException: BadSecureChannelClosed
在 Opc.Ua.Bindings.ChannelAsyncOperation1.End(Int32 timeout, Boolean throwOnError) 在 Opc.Ua.Bindings.UaSCUaBinaryClientChannel.EndSendRequest(IAsyncResult result) 在 Opc.Ua.Bindings.UaSCUaBinaryTransportChannel.EndSendRequest(IAsyncResult result) 在 Opc.Ua.Bindings.UaSCUaBinaryTransportChannel.SendRequest(IServiceRequest request) 在 Opc.Ua.SessionClient.CreateSubscription(RequestHeader requestHeader, Double requestedPublishingInterval, UInt32 requestedLifetimeCount, UInt32 requestedMaxKeepAliveCount, UInt32 maxNotificationsPerPublish, Boolean publishingEnabled, Byte priority, UInt32& subscriptionId, Double& revisedPublishingInterval, UInt32& revisedLifetimeCount, UInt32& revisedMaxKeepAliveCount) 在 Opc.Ua.Client.Subscription.Create() 在 OpcUaHelper.OpcUaClient.AddSubscription(String key, String[] tags, Action3 callback, Action1 subAction) 在 OpcUaHelper.OpcUaClient.AddSubscription(String key, String[] tags, Action3 callback)
在 MultiDimensionalFormingProductionLine.HYZZ.OPCUAHelper.BatchNodeIdDatasSubscription(String key, String[] nodeIds, Action`3 callback) 位置