Learning/s7netplus
0
0
Fork 0
mirror of https://github.com/S7NetPlus/s7netplus.git synced 2026-02-17 22:38:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

refactor: Extract WriteTpktHeader

Browse Source
This commit is contained in:
Michael Croes
2023-07-19 23:18:26 +02:00
parent e869d19587
commit 9c8b453326
1 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
S7.Net/PLCHelpers.cs
View File

@@ -9,6 +9,12 @@ namespace S7.Net
{
public partial class Plc
{
private static void WriteTpktHeader(System.IO.MemoryStream stream, int length)
{
stream.Write(new byte[] { 0x03, 0x00 });
stream.Write(Int.ToByteArray((short)length));
}
/// <summary>
/// Creates the header to read bytes from the PLC
/// </summary>
@@ -16,10 +22,9 @@ namespace S7.Net
/// <returns></returns>
private static void BuildHeaderPackage(System.IO.MemoryStream stream, int amount = 1)
{
//header size = 19 bytes
stream.Write(new byte[] { 0x03, 0x00 });
//complete package size
stream.Write(Int.ToByteArray((short)(19 + (12 * amount))));
// 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 });
//data part size
stream.Write(Word.ToByteArray((ushort)(2 + (amount * 12))));