diff --git a/S7.Net.Core/PLC.cs b/S7.Net.Core/PLC.cs
index c289a47..2d77a53 100644
--- a/S7.Net.Core/PLC.cs
+++ b/S7.Net.Core/PLC.cs
@@ -1011,7 +1011,7 @@ namespace S7.Net
             while (numBytes > 0)
             {
                 var maxToRead = (int)Math.Min(numBytes, 200);
-                byte[] bytes = (byte[])Read(DataType.DataBlock, db, index, VarType.Byte, (int)maxToRead);
+                byte[] bytes = ReadBytes(DataType.DataBlock, db, index, maxToRead);
                 if (bytes == null)
                     return new List<byte>();
                 resultBytes.AddRange(bytes);
diff --git a/S7.Net/PLC.cs b/S7.Net/PLC.cs
index 2ab954a..2520485 100644
--- a/S7.Net/PLC.cs
+++ b/S7.Net/PLC.cs
@@ -1008,7 +1008,7 @@ namespace S7.Net
             while (numBytes > 0)
             {
                 var maxToRead = (int)Math.Min(numBytes, 200);
-                byte[] bytes = (byte[])Read(DataType.DataBlock, db, index, VarType.Byte, (int)maxToRead);
+                byte[] bytes = ReadBytes(DataType.DataBlock, db, index, maxToRead);
                 if (bytes == null)
                     return new List<byte>();
                 resultBytes.AddRange(bytes);