鍏变韩鍐呭瓨 - C#涓嶤oDeSys閫氳

admin · 鍙戣〃浜� 2020-6-17 12:12:18

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1銆丆ODESYS 3.5.13.0锛堟柊寤篊odesys_ShareMemory椤圭洰锛�

2銆丼haredMemoryCommunication.package锛圕odesysy鍏变韩鍐呭瓨搴擄級

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SharedMemoryCommunication.package (23.03 MB, 涓嬭浇娆℃暟: 114)

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路 SysShm,3.5.8.0 (System)

路 SysTypes2 Interfaces,3.5.4.0 (System)

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鏈緥鍒嗗埆鍒涘缓涓や釜鏁版嵁缁撴瀯锛孲tr_ParaFromHMI鍜孲tr_ParaToHMI

3銆佸垱寤篠hareMemory

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[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

PROGRAM ShareMemory
VAR
        
        bStart: BOOL:= FALSE;
        ReadHandle: RTS_IEC_HANDLE:= RTS_INVALID_HANDLE;
        WriteHandle: RTS_IEC_HANDLE:= RTS_INVALID_HANDLE;
        szNameRead: STRING:= 'CODESYS_MEMORY_READ';                //澹版槑鍏变韩鍐呭瓨鐨勮鍙栧唴瀛樺悕绉�
        szNameWrite: STRING:= 'CODESYS_MEMORY_WRITE';        //澹版槑鍏变韩鍐呭瓨鐨勫啓鍏ュ唴瀛樺悕绉�
        ulPhysicalAddressRead: __UXINT:= 0;
        ulPhysicalAddressWrite: __UXINT:= 0;
        ulSizeRead: __UXINT:= 1024;
        ulSizeWrite: __UXINT:= 1024;
        ResultRead: ARRAY[0..2] OF RTS_IEC_RESULT;                //杩斿洖杩愯閿欒鐮�
        ResultWrite: ARRAY[0..2] OF RTS_IEC_RESULT;
        
        SMRead: __UXINT;
        SMWrite: __UXINT;
        ulOffsetRead: __UXINT:= 0;
        ulOffsetWrite: __UXINT:= 0;
        
END_VAR

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[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

//Init Memory
IF NOT bStart THEN
        ReadHandle:= SysSharedMemoryCreate(pszName:= szNameRead, ulPhysicalAddress:= ulPhysicalAddressRead, pulSize:= ADR(ulSizeRead), pResult:= ADR(ResultRead[0]));
        WriteHandle:= SysSharedMemoryCreate(pszName:= szNameWrite, ulPhysicalAddress:= ulPhysicalAddressWrite, pulSize:= ADR(ulSizeWrite), pResult:= ADR(ResultWrite[0]));
        IF RTS_INVALID_HANDLE <> ReadHandle AND RTS_INVALID_HANDLE <> WriteHandle THEN
                bStart:= TRUE;
        END_IF
END_IF
 
//璇诲彇鏁版嵁
IF RTS_INVALID_HANDLE <> ReadHandle THEN
        SMRead:= SysSharedMemoryRead(
        hShm:= ReadHandle,                                         //璇诲彇鍐呭瓨鐨勮澶囧彞鏌�
        ulOffset:= ulOffsetRead,                        //璇诲彇鏁版嵁鐨勫亸绉诲湴鍧€ 
        pbyData:= ADR(GVL.GetPara),                 //鎸囧悜璇诲彇鏁版嵁鐨勭紦鍐插尯
        ulSize:= SIZEOF(Str_ParaFromHMI),         //璇诲彇鏁版嵁鐨勫瓧鑺傚ぇ灏�        
        pResult:= ADR(ResultRead[1]));                //杩斿洖鎵ц鐨勯敊璇爜
END_IF
 
//鍐欏叆鏁版嵁
IF RTS_INVALID_HANDLE <> WriteHandle THEN
        SMWrite:= SysSharedMemoryWrite(
        hShm:= WriteHandle,                                 //鍐欏叆鍐呭瓨鐨勮澶囧彞鏌�
        ulOffset:= ulOffsetWrite,                         //鍐欏叆鏁版嵁鐨勫亸绉诲湴鍧€
        pbyData:= ADR(GVL.SetPara),                 //鎸囧悜鍐欏叆鏁版嵁鐨勭紦鍐插尯
        ulSize:= SIZEOF(Str_ParaToHMI),         //鍐欏叆鏁版嵁鐨勫瓧鑺傚ぇ灏�
        pResult:= ADR(ResultWrite[2]));                //杩斿洖鎵ц鐨勯敊璇爜
END_IF

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[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

using System.IO.MemoryMappedFiles;      //寮曠敤鍏变韩鍐呭瓨鍛藉悕绌洪棿
using System.Threading;                 
using System.Runtime.InteropServices;

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[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

    struct StrFromCodesys
    {
        internal bool bOut;
        internal int iOut;
        internal double fOut;
    }
    struct StrToCodesys
    {
        internal bool bIn;
        internal int iIn;
        internal double fIn;
    }

3銆佸垱寤篠hareMemory

1锛夊０鏄庡畾涔夊叡浜唴瀛樹娇鐢ㄧ殑API

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[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

 private void InitMemory()
        {
            try
            {
                MMF_Write = MemoryMappedFile.CreateOrOpen("CODESYS_MEMORY_READ", 1024);        //鎵撳紑Codesys_Read鍐呭瓨鍖哄煙锛屾剰鎬濆氨鏄Codesys鐨勮鍙栧尯鍩熸槸C#鐨勫啓鍏ュ尯鍩�
                AccessorWrite = MMF_Write.CreateViewAccessor(0, Marshal.SizeOf(typeof(StrToCodesys)), MemoryMappedFileAccess.Write);
 
                MMF_Read = MemoryMappedFile.CreateOrOpen("CODESYS_MEMORY_WRITE", 1024);        //鎵撳紑Codesys_Write鍐呭瓨鍖哄煙锛屾剰鎬濆氨鏄Codesys鐨勫啓鍏ュ尯鍩熸槸C#鐨勮鍙栧尯鍩�
                AccessorRead = MMF_Read.CreateViewAccessor(0, Marshal.SizeOf(typeof(StrFromCodesys)), MemoryMappedFileAccess.Read);
 
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

3锛夎鍙栨暟鎹�

[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

        private void ReadData()
        {
            while(true)
            {
                try
                {
                    Thread.Sleep(5);
                    AccessorRead.Read(0, out ParaFromCodesys);      //璇诲彇Codesys鐨勬暟鎹�
                    Thread.Sleep(5);
                    if(ParaFromCodesys.bOut == true)
                        picbox_bRead.BackColor = Color.Red;
                    else
                        picbox_bRead.BackColor = Color.Gray;
 
                    textbox_iRead.Text = ParaFromCodesys.iOut.ToString("0");
                    textbox_fRead.Text = ParaFromCodesys.fOut.ToString("0.000");
 
                }
                catch(Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
        }

4锛夊啓鍏ユ暟鎹�

[C] 绾枃鏈煡鐪� 澶嶅埗浠ｇ爜

        private void btnWriteB(object sender, EventArgs e)
        {
            ParaToCodesys.bIn = !ParaToCodesys.bIn;
            AccessorWrite.Write(0, ref ParaToCodesys);
            if(ParaToCodesys.bIn == true)
            {
                picbox_bWrite.BackColor = Color.Red;
            }
            else
            {
                picbox_bWrite.BackColor = Color.Gray;
            }
        }

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g2575 · 鍙戣〃浜� 2021-6-24 13:37:49

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鍏变韩鍐呭瓨 - C#涓嶤oDeSys閫氳

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鍏变韩鍐呭瓨 - C#涓嶤oDeSys閫氳

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