Sepam - HV/MV Protection and control units (ENG) - Trinet

Reading of diagnosiscounters: function 8Each Sepam 2000 is assigned event counters(or diagnosis counters). In all, there are 8 countersper Sepam 2000.The counters are 16-bit words. In the chart opposite,the value of data XXXX is equal to:c 0000 for the request,c the content of the counter concerned for the reply.If the counters reach FFFF, they automatically switchto 0000.Request / replyslavenumber8sub-functioncodesub-function datacodesthe Sepam 2000 must send the echo 0000 XYZT (1)of the requestrreset to zero of the diagnosis counters 000A 0000reading of the total number of:frames received with no CRC error (CPT1) 000B XXXXframes received with a CRC error (CPT2) 000C XXXXexception replies (CPT3) 000D XXXXframes addressed to Sepam 2000 (CPT4) 000E XXXX(excluding broadcasting)broadcasting requests received (CPT5) 000F XXXXexception replies(including broadcasting (CPT6 / function 13) 0010 XXXXSepam 2000 not ready replies (CPT7) 0011 XXXXcharacters not processed (CPT8) 0012 XXXX(1)X, Y, Z, T set by the user (for transmission checking).dataCRC 161 byte 1 byte2 bytes 2 bytes2 bytesReading of event counter:function 11Each Sepam 2000 has an event counter (CPT9).The counter is incremented each time a frameis correctly received and interpreted by the slave(except for the specific counter reading comand:function 11). A correct broadcasting commandincrements the counter. If the slave transmitsan exception reply, the counter is not incremented.The counter makes it possible to find out fromthe master whether the Sepam 2000 has correctlyinterpreted the command (event counter incremented)or not interpreted if (counter not incremented).Reading of the different elements makes it possibleto diagnose the exchanges that have taken placebetween the master and the Sepam 2000.If the master counter = the Sepam 2000 counter,the command sent by the master has been executed.If the master counter = the slave counter + 1, thecommand sent by the master has not been executed.RequestslavenumberReply0BCRC 161 byte 1 byte2 bytesslavenumber0B0slave countercontentPlease refer to the «implementation» chapter, «diagnosis counter» section.CRC 161 byte 1 byte 2 bytes 2 bytes2 bytesJbus/Modbus communication43