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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| // Copyright (c) libplctag.NET contributors | ||
| // https://github.com/libplctag/libplctag.NET | ||
| // | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using libplctag; | ||
|
|
||
| namespace CSharp_DotNetCore | ||
| { | ||
| class ExampleRaw | ||
| { | ||
| public static void Run() | ||
| { | ||
| var lister = new LogixTagListing() | ||
| { | ||
| Gateway = "192.168.0.1", | ||
| Path = "1,0", | ||
| Timeout = TimeSpan.FromMilliseconds(1000), | ||
| }; | ||
|
|
||
| var tags = lister.ListTags(); | ||
|
|
||
| foreach (var tag in tags) | ||
| Console.WriteLine($"Id={tag.Id} Name={tag.Name} Type={tag.Type} Length={tag.Length}"); | ||
| } | ||
|
|
||
| class LogixTagListing | ||
| { | ||
| readonly Tag _rawCip = new Tag() | ||
| { | ||
| PlcType = PlcType.ControlLogix, | ||
| Protocol = Protocol.ab_eip, | ||
| Name = "@raw", | ||
| }; | ||
|
|
||
| public string Gateway { get => _rawCip.Gateway; set => _rawCip.Gateway = value; } | ||
| public string Path { get => _rawCip.Path; set => _rawCip.Path = value; } | ||
| public TimeSpan Timeout { get => _rawCip.Timeout; set => _rawCip.Timeout = value; } | ||
|
|
||
| public List<TagInfo> ListTags() | ||
| { | ||
| // This payload is taken from https://github.com/libplctag/libplctag/blob/release/src/examples/test_raw_cip.c | ||
| // but others can be found by analysing the Rockwell or other manufacturer's documentation | ||
| // https://literature.rockwellautomation.com/idc/groups/literature/documents/pm/1756-pm020_-en-p.pdf pg 39 | ||
|
|
||
| var raw_payload = new byte[] { | ||
| 0x55, | ||
| 0x03, | ||
| 0x20, | ||
| 0x6b, | ||
| 0x25, | ||
| 0x00, | ||
| 0x00, | ||
| 0x00, | ||
| 0x04, | ||
| 0x00, | ||
| 0x02, | ||
| 0x00, | ||
| 0x07, | ||
| 0x00, | ||
| 0x08, | ||
| 0x00, | ||
| 0x01, | ||
| 0x00 | ||
| }; | ||
|
|
||
| _rawCip.Initialize(); | ||
| _rawCip.SetSize(raw_payload.Length); | ||
| _rawCip.SetBuffer(raw_payload); | ||
| _rawCip.Write(); | ||
|
|
||
| var responseSize = _rawCip.GetSize(); | ||
|
|
||
| var tagInfos = new List<TagInfo>(); | ||
| int offset = 0; | ||
| while (offset < responseSize) | ||
| tagInfos.Add(DecodeOneTagInfo(ref offset)); | ||
|
|
||
| return tagInfos; | ||
| } | ||
|
|
||
| public class TagInfo | ||
| { | ||
| public uint Id { get; set; } | ||
| public ushort Type { get; set; } | ||
| public string Name { get; set; } | ||
| public ushort Length { get; set; } | ||
| public uint[] Dimensions { get; set; } | ||
| } | ||
|
|
||
| TagInfo DecodeOneTagInfo(ref int offset) | ||
| { | ||
|
|
||
| var tagInstanceId = _rawCip.GetUInt32(offset); | ||
| var tagType = _rawCip.GetUInt16(offset + 4); | ||
| var tagLength = _rawCip.GetUInt16(offset + 6); | ||
| var tagArrayDims = new uint[] | ||
| { | ||
| _rawCip.GetUInt32(offset + 8), | ||
| _rawCip.GetUInt32(offset + 12), | ||
| _rawCip.GetUInt32(offset + 16) | ||
| }; | ||
|
|
||
| var apparentTagNameLength = (int)_rawCip.GetUInt16(offset + 20); | ||
| const int TAG_STRING_SIZE = 200; | ||
| var actualTagNameLength = Math.Min(apparentTagNameLength, TAG_STRING_SIZE * 2 - 1); | ||
|
|
||
| var tagNameBytes = Enumerable.Range(offset + 22, actualTagNameLength) | ||
| .Select(o => _rawCip.GetUInt8(o)) | ||
| .Select(Convert.ToByte) | ||
| .ToArray(); | ||
|
|
||
| var tagName = Encoding.ASCII.GetString(tagNameBytes); | ||
|
|
||
| offset = 22 + actualTagNameLength; | ||
|
|
||
| return new TagInfo() | ||
| { | ||
| Id = tagInstanceId, | ||
| Type = tagType, | ||
| Name = tagName, | ||
| Length = tagLength, | ||
| Dimensions = tagArrayDims | ||
| }; | ||
|
|
||
| } | ||
|
|
||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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