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Add multiVarRequestCycleTime parameter

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This commit is contained in:
Peter Butzhammer
2024-02-07 09:31:11 +01:00
parent 4432f3c0d4
commit c79e07be33
1 changed files with 39 additions and 18 deletions
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29
Sharp7.Rx/Sharp7Plc.cs
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@@ -28,10 +28,30 @@ namespace Sharp7.Rx
private readonly List<long> performanceCoutner = new List<long>(1000); private readonly List<long> performanceCoutner = new List<long>(1000);
/// <summary>
public Sharp7Plc(string ipAddress, int rackNumber, int cpuMpiAddress, int port = 102) /// </summary>
/// <param name="ipAddress"></param>
/// <param name="rackNumber"></param>
/// <param name="cpuMpiAddress"></param>
/// <param name="port"></param>
/// <param name="multiVarRequestCycleTime">
/// <para>
/// Polling interval used to read multi variable requests from PLC.
/// </para>
/// <para>
/// This is the wait time between two successive reads from PLC and determines the
/// time resolution for all variable reads reated with CreateNotification.
/// </para>
/// <para>
/// Default is 100 ms. The minimum supported time is 5 ms.
/// </para>
/// </param>
public Sharp7Plc(string ipAddress, int rackNumber, int cpuMpiAddress, int port = 102, TimeSpan? multiVarRequestCycleTime = null)
{ {
plcConnectionSettings = new PlcConnectionSettings() { IpAddress = ipAddress, RackNumber = rackNumber, CpuMpiAddress = cpuMpiAddress, Port = port }; plcConnectionSettings = new PlcConnectionSettings() { IpAddress = ipAddress, RackNumber = rackNumber, CpuMpiAddress = cpuMpiAddress, Port = port };
if (multiVarRequestCycleTime != null && multiVarRequestCycleTime > TimeSpan.FromMilliseconds(5))
MultiVarRequestCycleTime = multiVarRequestCycleTime.Value;
} }
public IObservable<ConnectionState> ConnectionState { get; private set; } public IObservable<ConnectionState> ConnectionState { get; private set; }
@@ -58,7 +78,7 @@ namespace Sharp7.Rx
}); });
#pragma warning restore 4014 #pragma warning restore 4014
RunNotifications(s7Connector, TimeSpan.FromMilliseconds(100)) RunNotifications(s7Connector, MultiVarRequestCycleTime)
.AddDisposableTo(Disposables); .AddDisposableTo(Disposables);
return true; return true;
@@ -213,7 +233,7 @@ namespace Sharp7.Rx
return ConnectionState.FirstAsync() return ConnectionState.FirstAsync()
.Select(states => states == Enums.ConnectionState.Connected) .Select(states => states == Enums.ConnectionState.Connected)
.SelectMany(connected => GetAllValues(connected, connector)) .SelectMany(connected => GetAllValues(connected, connector))
.RepeatAfterDelay(cycle) .RepeatAfterDelay(MultiVarRequestCycleTime)
.LogAndRetryAfterDelay(Logger, cycle, "Error while getting batch notifications from plc") .LogAndRetryAfterDelay(Logger, cycle, "Error while getting batch notifications from plc")
.Subscribe(); .Subscribe();
} }
@@ -259,5 +279,6 @@ namespace Sharp7.Rx
} }
public int MultiVarRequestMaxItems { get; set; } = 16; public int MultiVarRequestMaxItems { get; set; } = 16;
public TimeSpan MultiVarRequestCycleTime { get; private set; } = TimeSpan.FromSeconds(0.1);
} }
} }