Section 8 IEC 60870-5-103 communicationengineeringThe Application Configuration tool (ACT) and the Parameter Setting tool (PST) inPCM600 are used to configure the communication for IEC 60870-5-103 protocol.1. Add the desired IEC 60870-5-103 function blocks to the applicationconfiguration in the Application Configuration tool.2. Connect the outputs of desired protection and monitoring function in theapplication configuration to the inputs of the corresponding IEC 60870-5-103function block.3. Set the function type and desired information number, where an informationnumber must be supplied, for each IEC 60870-5-103 function block instance inthe Parameter Setting tool.4. Set the general communication settings for IEC 60870-5-103, available infunction RS485103 or OPTICAL103 depending on choice of serial interface,and time synchronization parameters in the Parameter Setting tool.See the Communication protocol manual for IEC 60870-5-103 for more informationabout the IEC 60870-5-103 implementation in 650 series.Both COM03 and COM05 modules are equipped with an opticalserial and RS485 serial communication interface. IEC60870-5-103can be communicated from either of these serial interfaces. The usermust select in PST which interface to use.8.1.1 Operation selection for RS485 and optical serialcommunicationBoth COM03 and COM05 hardware modules are equipped with a serial optical and aRS485 communication interface. IEC 60870-5-103 can be configured to either of thetwo interfaces. Setting ProtocolSel, available in functions RS485PROT andOPTICALPROT, is used to select if IEC 60870-5-103 is communicated through theoptical serial or the RS485 interface. The ProtocolSel setting is found under Mainmenu/Configuration/Communication/Station communication/RS485 port/RS485PROT:1 for RS485 in local HMI and Main menu/Configuration/Communication/Station communication/Optical serial port/OPTICALPROT:1in local HMI for optical serial port.The general communication settings for IEC 60870-5-103 optical serialcommunication is found in OPTICAL103 function under Main menu/1MRK 511 284-UEN A Section 8IEC 60870-5-103 communication engineering650 series 103Engineering manual