112Chapter 66.1 How to Use RS-232C CommandsTo control the GP-X series via the RS-232C, follow the procedure below.1. Connect a communication cable between the controller and a host (PCetc.).2. Maintain consistency in the communication specification between thecontroller and the host (PC etc.).Reference For the communication specification setting method of the GP-X series,refer to section "5.1 RS-232C Communication Setting" on page 98.The command format is described.Transmission FormatCommand separatorEach command is terminated by a "0xd" carriage return code.Header Command Instruction character stringController addressBCCCarriage return codeHeaderCommandController addressInstruction characterstringBCCCRSpecial communication header necessary forRS-232C control. The transmission header iscommon:Character string indicating the data of variouscommands. An instruction character string may bea 1 digit code or a setting value consisting ofmultiple digits.The header is followed by various commands.Block check code of communication dataID address of the controller. The default address is"0".To use linking functions with the optional controllercommunication unit, an address must be enteredfor each controller. Using the controllercommunication unit, data can be loaded from orwritten to linked controllers.
