Eaton XC200 Series User Manual

10/10 MN05003004Z-EN598 RS232 interface in transparent mode (COM 1/2/3)The transparent mode serves data exchange with data terminals(e.g. terminals, printers, PCs, measurement devices etc.) via theRS232 serial interface connection. The data transfer is transparent;i.e. the data is transferred without it being interpreted further.This functionality is provided on the XC100 by the“XC100_SysLibCom” library. The library must be integrated intothe “Library Manager”. The library contains functions for openingand closing the interface, for sending and receiving data and forsetting the interface parameters and control cables.If control lines of the integrated XC100 interfaces on the RS232are contacted in the function module, they will not function as thecontrol lines do not physically exist. However, these“XC100_SysLibCom functions” are implemented for reasons ofcompatibility.With the XIOC-SER hardware interface module, the control linesare available and are operated via the “SysComReadControl” and“SysComWriteControl” function calls.If transparent mode is active, no communication is possible withthe programming system. Transparent mode must first bedisabled. When Transparent mode is closed, the originalcommunication parameters are reinitialised. The transparentmode is forcibly deactivated when the PLC changes to the STOPmode.A prerequisite for operating the RS232 interface in transparentmode is hardware version 02 and operating system version V02.00or higher.