Problem solved! I found the solution. I changed the serial connection from GPIO to USB serial convertor on Raspberry pi it works. I added these in Raspberry sudo nano /etc/CODESYSControl.cfg [SysCom] Linux.Devicefile.2=/dev/ttyUSB0 Linux.Devicefile.1=/dev/ttyS0
Hello Edwin Schwellinger, I found problem in serial communication as below. I would be very appreciated if you can raise these problem on Jira. 1. SysCom, 3.5.17.0, setting is as below. COM_RS232C.sPort:=SysCOM.SYS_COMPORT1; COM_RS232C.byParity:=SysCOM.SYS_EVENPARITY; COM_RS232C.byStopBits:=SysCOM.SYS_ONESTOPBIT; COM_RS232C.ulBaudrate:=SysCOM.SYS_BR_115200; COM_RS232C.ulBufferSize:=50; COM_RS232C.ulTimeout:=0; COM_RS232CEx.byByteSize:=8; When I sent data via SysCom.SysComWrite to PC, it read data...