From 42194aa7882883cbd1ea0e96b72c1e4a96baef23 Mon Sep 17 00:00:00 2001
From: Michael Croes <mycroes@gmail.com>
Date: Wed, 19 Jul 2023 23:19:32 +0200
Subject: [PATCH] refactor: Extract WriteDataHeader

---
 S7.Net/PLCHelpers.cs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/S7.Net/PLCHelpers.cs b/S7.Net/PLCHelpers.cs
index 6e6f306..97623cc 100644
--- a/S7.Net/PLCHelpers.cs
+++ b/S7.Net/PLCHelpers.cs
@@ -15,6 +15,11 @@ namespace S7.Net
             stream.Write(Int.ToByteArray((short)length));
         }
 
+        private static void WriteDataHeader(System.IO.MemoryStream stream)
+        {
+            stream.Write(new byte[] { 0x02, 0xf0, 0x80 });
+        }
+
         /// <summary>
         /// Creates the header to read bytes from the PLC
         /// </summary>
@@ -24,8 +29,8 @@ namespace S7.Net
         {
             // Header size 19, 12 bytes per item
             WriteTpktHeader(stream, 19 + (12 * amount));
-
-            stream.Write(new byte[] { 0x02, 0xf0, 0x80, 0x32, 0x01, 0x00, 0x00, 0x00, 0x00 });
+            WriteDateHeader(stream);
+            stream.Write(new byte[] { 0x32, 0x01, 0x00, 0x00, 0x00, 0x00 });
             //data part size
             stream.Write(Word.ToByteArray((ushort)(2 + (amount * 12))));
             stream.Write(new byte[] { 0x00, 0x00, 0x04 });