FX3U-ENET-L USER'S MANUAL - Automation Systems and Controls

3SPECIFICATIONSMELSEC-F2) Ethernet module PLCData is sent and received in binary code.Ethernet modulePLCBinary codeCommunicationdatastorageareaBIN/ASCIIconversionBinary codeASCII codeExternaldevice(2) When communicating using ASCII code, 1-byte binary code data is automaticallyconverted into 2-byte ASCII code data and then transmitted.(Example)Binary code data15 H(One byte)1234H(Two bytes)ASCII code data31H,35 H"1","5"(Two bytes)31H,32 H,33H,34H"1","2","3","4"(Four bytes)(3) The amount of data that can be communicated at one time between the Ethernetmodule and an external device is determined by the function used and the datacode (binary of ASCII) selected in "Operation setting" - "Communication datacode setting" of the FX Configurator-EN-L.The following shows the maximum sizes of communication data that can be sentat a time with each data communication function.Data communication functionCommunication using MC protocolCommunication using fixed bufferSending by e-mailExchangeable data sizeThe maximum number of point that can be designatedwith each command/instruction : Maximum of 32 wordsProcedure exist 1017 words (Binary code) 508 words (ASCII code)No procedure2046 bytesAttached file : Maximum of 2048 wordsorMain text : Maximum of 256 bytes3 - 43 - 4