RAPID reference manual - Technology

PackDNHeaderFieldbus Command InterfacePathData type: stringInstructionThe values for the Path is found in the EDS file. For a more detailed descriptionsee the Open DeviceNet Vendor Association “DeviceNet Specification rev. 2.0”.Support for both long string format (e.g. "6,20 1D 24 01 30 64,8,1") and short string format (e.g. "20 1D 24 01 30 64").RawDataData type: rawbytesVariable container to be packed with message header data starting at index 1 inRawData.Program executionDuring program execution the DeviceNet message RawData ‘container’is:- first completly cleared- and then the header part is packed with dataFormat DeviceNet HeaderThe instruction PackDNHeader will create a DeviceNet message header with followingformat:Tabell 11RawDataHeader FormatNo ofbytesNoteFormat 1 Internal IRC5 code for DeviceNetService 1 Hex code for serviceSize of Path 1 In bytesPath x ASCII charsThe data part of the DeviceNet message can afterwards be set with the instruction Pack-RawBytes starting at index fetched with (RawBytesLen(my_rawdata)+1).SyntaxPackDNHeader [Service ’:=’ ] < expression (IN) of string> ’,’[Path ’:=’ ] < expression (IN) of string> ’,’[RawData ’:=’ ] < variable (VAR) of rawbytes> ’;’314 RAPID reference manual - part 1a, Instructions A-R