COMMUNICATIONSRP1 Port ConfigK-Bus9. If using EIA(RS)485, the next cell (RP1 Comms Mode) selects the communication mode. The choice is eitherIEC 60870 FT1.2 for normal operation with 11-bit modems, or 10-bit no parity. If using K-Bus this cell will notappear.COMMUNICATIONSRP1 Comms ModeIEC 60870 FT1.210. If using EIA(RS)485, the next cell down controls the baud rate. Three baud rates are supported; 9600, 19200and 38400. If using K-Bus this cell will not appear as the baud rate is fixed at 64 kbps.COMMUNICATIONSRP1 Baud rate192007.2 IEC 60870-5-103The specification IEC 60870-5-103 (Telecontrol Equipment and Systems Part 5 Section 103: TransmissionProtocols), defines the use of standards IEC 60870-5-1 to IEC 60870-5-5, which were designed for communicationwith protection equipmentThis section describes how the IEC 60870-5-103 standard is applied to the Px40 platform. It is not a description ofthe standard itself. The level at which this section is written assumes that the reader is already familiar with theIEC 60870-5-103 standard.This section should provide sufficient detail to enable understanding of the standard at a level required by mostusers.The IEC 60870-5-103 interface is a master/slave interface with the device as the slave device. The device conformsto compatibility level 2, as defined in the IEC 60870-5-103.standard.The following IEC 60870-5-103 facilities are supported by this interface:● Initialization (reset)● Time synchronization● Event record extraction● General interrogation● Cyclic measurements● General commands● Disturbance record extraction● Private codes7.2.1 PHYSICAL CONNECTION AND LINK LAYERTwo connection options are available for IEC 60870-5-103:● Rear Port 1 (RP1) - for permanent SCADA connection via RS485● Optional fibre port (RP1 in slot A) - for permanent SCADA connection via optical fibreP14x Chapter 18 - CommunicationsP14xEd1-TM-EN-1 415
