https://forge.codesys.com/forge/talk/Engineering/thread/c0b143d4f3/2022-04-22T06:22:24.990000ZRecent posts to Sysfile2022-04-22T06:22:24.990000Z2022-04-22T06:22:24.990000ZReinier Geershttps://forge.codesys.com/u/reinier-geers/https://forge.codesys.com4554e0f36ce0c920c31894918f2f53a923ac7542

<div class="markdown_content"><p>Ive got 3 devices with Linux. Both the same software. But one has trouble reading data. I made a FB to read the settings. I read 4 settings. Read/write is ok. But after power on one is empty. Why . Cyclic task. </p> <p>RW_Para : RemVar_FileRW:= (bExecute:=TRUE, bRead:=TRUE, sFileName:='../Settings/PAR_Pumps.Par',<br/> pRemBuffer:=adrPara, szRemBufSize:=udiSize_Para ); // Read parameters at power up </p> <p>cWrite: <br/> IF NOT bInit THEN<br/> udi_handle:=SysFileOpen(sFileName, sysfile.AM_WRITE_PLUS, ADR(udi_ErrorCode));<br/> binit := TRUE;<br/> END_IF <br/> //Out_pointer:=SysFilesetPos(udi_handle,1);<br/> udi_RetValWrite:=SysFileWrite(udi_handle, pRemBuffer, szRemBufSize, ADR(udi_ErrorCode)); <br/> //closing file<br/> IF udi_RetValWrite &lt; szRemBufSize THEN ui_Error:=cWriteError; END_IF//error writing data<br/> udi_ErrorCode:=SysFileClose(udi_handle);<br/> uiState:=cClose;<br/> binit := FALSE;</p> <p>cRead:<br/> IF NOT bInit THEN<br/> udi_handle:=SysFileOpen(sFileName, sysfile.AM_READ_PLUS, ADR(udi_ErrorCode));<br/> binit := TRUE;<br/> END_IF<br/> udi_RetValRead:=SysFileRead(udi_handle , pRemBuffer , szRemBufSize , ADR(udi_ErrorCode) );<br/> udi_ErrorCode:=SysFileClose(udi_handle);<br/> bRead:=FALSE;<br/> uiState:=cClose;<br/> binit := FALSE;</p></div>