diff --git a/csharp/Lib/Devices/Trumpf/TruConvertAc/TruConvertAcDcDevices.cs b/csharp/Lib/Devices/Trumpf/TruConvertAc/TruConvertAcDcDevices.cs
index 31cea2131..0078f19f2 100644
--- a/csharp/Lib/Devices/Trumpf/TruConvertAc/TruConvertAcDcDevices.cs
+++ b/csharp/Lib/Devices/Trumpf/TruConvertAc/TruConvertAcDcDevices.cs
@@ -17,7 +17,7 @@ public class TruConvertAcDcDevices
     
     public TruConvertAcDcDevices(Channel transport)
     {
-        var modbusClient = new ModbusTcpClient(transport, 0);
+        var modbusClient = new ModbusTcpClient(transport, slaveId: 0);
 
         _SystemControl = new ModbusDevice<SystemControlRegisters>(modbusClient);
 
@@ -57,21 +57,21 @@ public class TruConvertAcDcDevices
     
     public void Write(AcDcDevicesRecord r)
     {
-        if (r.SystemControl is not null)
-            _SystemControl.Write(r.SystemControl);  // must run BEFORE the attached devices
-
-        foreach (var (ctrl, device) in r.Devices.Zip(_AcDcs))
+        try
         {
-            try
+            if (r.SystemControl is not null)
+                _SystemControl.Write(r.SystemControl); // must run BEFORE the attached devices
+
+            foreach (var (ctrl, device) in r.Devices.Zip(_AcDcs))
             {
                 device.Write(ctrl);
             }
-            catch (Exception e)
-            {
-                Console.WriteLine(e);
-                // TODO: log
-            }
         }
+        catch (Exception e)
+        {
+            Console.WriteLine(e);
+            // TODO: log
+        } 
     }
     
 }
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