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Dear madam or Sir, Thank you very much for responding. My CIE-H10 units are in a DHCP network. I use my own application to detect the units. I'sve written a (C#) class to broadcast the units. The response from an unit is a byte array. I was wondering if there is useful information in that response, which I can use to identify the unit. Now I get the mac address to identify the unit (from the ARP table), but that is an extra action on the network. I get the response from the unit, but I can not read the response. Maybe I use the wrong encoding. Or maybe the encoding is right and there is no info in the response. I use this C# code to read the response buffer: var enc = Encoding.BigEndianUnicode; string response = enc.GetString(recvBuffer); (see complete code below) This is the encoded response I get from the unit: "⩶丁ʁĀ賩0龜衧ခ̄钶Ā0龜衧船㧆⩗朲㢳�頻೨묍S䠮驉䆑㗴햢≠�宮킍⦖踣ⅷॱ䋏ᦌ뱷完㝿㤛颍뤚䓓빞뽠Ȃ࿿푏乭鎯糖⾷賤껴畣螩တ抮聾旵웴됞໹�쓮ꏘ잓卩傷攩০랳⡝渝ⱨ䡛因⣔봲똁ॷӉ⼞籲乱杼⮕衷棶⊥諛夀趽⺸菐糮䲮賈⬤㗍訏ʬ㔼쬮汦�槎⋦怊煙뒣擓�婝㠇砣娚䩶⹜虾࿠㝕虿㺛㚁톗⢠♂卝㾦肏⧅黛共⍱䂴㏌㶄뚜趺卖颋韒࣋앣ᥳ痮ᴧ덿⦅ى填躌⍶꒙跋ॗ奼ၻ선㤰糆⺷䑬肃霱഼寚쀇坤붚�瞺ল⥫탳Ⱞᣨ參苝靹庨뫗�̨轁茵酑Ⲷ㙗锈槥멚岨풃왯ǯ叫帏ⵁ⸐層晤符╯ি팖폫暣碸ߙ曃櫖⍊ⷹ쉨찺ඃ囻㌍估伶留⠏ꔾ︋웬ᘀ옛돵㫀憞刈蟩ɏ碷⟺틁禡똙链胙䆜ⶂꖳ⺆恻갅諶�ᾒ샖⥑�῍뺎毪븐훚䰠�㌮ᗦ裛मⓩ㿏㮮ᣘ륻東뵇ﵜ푎ᝄ贆ା뿶옘秄᧌牝鑥렲圻״涴ڽ�ᶾ겠ﰡԘ톙ﱼ䃒氱劇鯮둹ꦃ풷㱰솦ⱚḪ⁨崔໗ஈ仦축�㿝礞佯뭂煮嗳㴬ꈧ睛�䔕卄ᄱ箼㊽�꒫밻䪚ꢖ䗰庠㬙㼋臱囶縺랼䋾픭罃⽕渡忥ꠕᢜ졧぀ᙐ㡜滇宝莭價廵粀酐寮ꬣ땏폞䷣鎨⿥⹞롂굣ए⯳ᇑ띋擓琉ƚ認�ﭣ횇ే㙾㲍㬋鷅槦ꗳ㑬芤뜣ᛁ柃Ꝁহ�߉�빎㼒㊴譵褲뚣迱絵ᇔ쪁奜덏將댅䨈귍⺁�勣୰擈�ﾬ謔䱁슖尵絾쫘଎찻닣ꆢ↫‒嗧⧑渗腆㴦笂౟뚷⊯놯糦ﲬⰗ₟꥔㸁⨡Ɜ꾹ల䪭霭累㮍愎Ἶ巈鑙顤嫽揋窒뀐榠鐅⩒ᴑ檱ꋖ푢鱊䄉珫믑쒏迕乺宏䧛죗ꁏ鶭戋㮄廀赏甦냟ᬡ顱悙괰꿣䠽鶥ϺP샰ጸǱ揾�슖ꪯﴭ㱣ዪ쎮鸗乌启咿䣈巹䔜ƚㄇ즿໮◓盙�姡萻頻稓ﯦ貕㇔鑵⫥⛬᫄䪠滍歱㜚乎ᮯ�矅㿷峪࠶底↉℻版넝硒⾝愺㼦닂㉫䏗ꠓ좿❯↸ࠉ䆟ྌ뢖鼜賡驗䞎ダ꾇⁝耶췾敞䀀밑愳렁ꏜ蜑Ｘ沣ﾞ�嘯頰藆굦른⌜（ꅚ뉔抉蠔䔌쏢䗸䔀톅쐏繇퍷㭋䨶쌮職脂ۍ촔ꕌ焓ಠ萩ُ꭭媀ज़ㆹआ꾱⌋ጃ즉ཡ⠋狿냿澒踷ẅ灙⬘繗미" //This is my broadcast class: namespace Gbsd.Modbus.Test { #region using System; using System.Collections.Generic; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Text; #endregion internal struct ModbusAddress { internal string IpAddress; internal string MacAddress; } internal static class IpFromBroadCast { internal static List<ModbusAddress> GetModbusClients() { List<ModbusAddress> clients = new List<ModbusAddress>(); const int RemotePort = 50005; const int LocalPort = 50005; byte[] recvBuffer = new byte[1428]; var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp) { EnableBroadcast = true }; EndPoint remoteEndPoint = new IPEndPoint(IPAddress.Broadcast, RemotePort); socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1); socket.Bind(new IPEndPoint(IPAddress.Any, LocalPort)); byte[] value = { 0x2a, 0x76, 0x4e, 0x01, 0x10, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; try { socket.SendTo(value, new IPEndPoint(IPAddress.Broadcast, RemotePort)); } catch (Exception exeption) { Console.WriteLine(exeption.StackTrace); } socket.SendTimeout = 100; socket.ReceiveTimeout = 1000; try { while (true) { int bytesReceived = socket.ReceiveFrom(recvBuffer, ref remoteEndPoint); // CIE-H10 response is 1428 bytes if (bytesReceived != 1428) { continue; } /////////////////////////////////////////////// var enc = Encoding.BigEndianUnicode; // string response = enc.GetString(recvBuffer); // /////////////////////////////////////////////// remoteEndPoint.Serialize(); var ipEndPoint = (IPEndPoint)remoteEndPoint; string ipAddress = ipEndPoint.Address.ToString(); string macAddress = string.Empty; if (ipAddress.Length > 10) { macAddress = GetMacAddressFromIp(ipAddress); } ModbusAddress modbusAddress; modbusAddress.IpAddress = ipAddress; modbusAddress.MacAddress = macAddress; clients.Add(modbusAddress); } } catch (Exception exeption) { Console.WriteLine(exeption.StackTrace); } finally { socket.Close(); } return clients; } [DllImport("iphlpapi.dll", ExactSpelling = true)] public static extern int SendARP(int destIp, int srcIP, byte[] macAddr, ref uint physicalAddrLen); private static string GetMacAddressFromIp(string address) { var dst = IPAddress.Parse(address); var macAddr = new byte[6]; uint macAddrLen = (uint)macAddr.Length; if (SendARP(BitConverter.ToInt32(dst.GetAddressBytes(), 0), 0, macAddr, ref macAddrLen) != 0) { throw new InvalidOperationException("SendARP failed."); } var str = new string[(int)macAddrLen]; for (int i = 0; i < macAddrLen; i++) { str[i] = macAddr[i].ToString("x2"); } string output = string.Join(":", str); return output; } } } Best regards, Goos van Beek. > Sollae Systems wrote: > ------------------------------------ > Hello. > > This is technical support team of Sollae Systems. > > I'sm sorry, but I am not sure what you exactly want. > > Do you receive the return messege from ezManager or not? > > Unless you use ezManager, what do you use for that? > > Please, send us screenshots and more information about that. > > It can be helpful to support your inquiry. > > Have a good day. > > Thank you. > > > Goos van Beek wrote: > > ------------------------------------ > > Dear Madam or Sir, > > > > I'sm using the CIE-H10 in a DHCP network. While the unit has no host name I'sm detecting it by a broadcast op port 50005. > > This returns the IPAddress, but I can'st decipher the response result from the unit. For me it looks like Korean. I use BigEndianUniCode to encode the response. > > Is there another way to encode the response in readable language, or is it really Korean? > > Or is there no useful information in the broadcast response, like the mac address? > > > > Regards, > > Goos van Beek. > > > >
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