IEC 60870-5-103 communication
Contents
1. ASDU FUN INF COT semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 20 Sepam supervision 1 20 1 1 9 Sepam partial fault 1 20 2 1 9 Sepam major fault 1 20 3 1 9 m 148 1 module sensor fault 1 20 4 1 9 m 148 2 module sensor fault 1 20 5 1 9 m Control fault L 1 20 6 1 8 m Residual VT fault L 1 20 7 1 9 m Additional phase CT fault 1 20 8 1 9 m Additional phase VT fault L 1 20 9 1 9 m Additional residual VT fault 1 20 10 1 Min V_aux 1 20 11 1 Max V_aux 1 20 12 1 Battery low or absent 1 20 13 1 9 W Test mode 1 20 14 1 9 12 S LAN communication monitoring active 20 21 1 20 15 1 Ethernet communication fault L L 21 Switchgear and network 1 21 1 1 9 12 Device closed 20 21 1 21 2 1 9 m Device racked out Li Li 1 21 3 1 SF6 alarm 1 21 4 1 9 m Earthing switch closed 1 21 5 1 Thermistor alarm L 1 21 6 1 Thermistor tripping 1 21 7 1 Buchholz alarm 1 21 8 1 Buchholz tripping 1 21 9 1 Thermostat alarm 1 21 10 1 Thermostat tripping 1 21 11 1 Pressure alarm 1 21 12 1 Pressure tripping2. ASDU FUN INF COT GI Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 100 Overcurrent protections 2 100 1 1 Protection 50 51 unit 3 m unti m L L group B 2 100 2 1 Protection 50 51 unit 4 m unt2 m L group B 2 100 3 1 Protection 50 51 unit 5 L 2 100 4 1 Protection 50 51 unit 6 2 100 5 1 Protection 50 51 unit 7 2 100 6 1 Protection 50 51 unit 8 2 100 7 1 Protection 50N 51N unit 3 m uniti m L group 2 100 8 1 Protection 50N 51N unit 4 m unit2 m group 2 100 9 1 Protection 50N 51N unit 5 2 100 10 1 Protection 50N 51N unit 6 2 100 11 1 Protection 50N 51N unit 7 L 2 100 12 1 Protection 50N 51N unit 8 L 2 100 13 1 Protection 51V unit 1 2 100 14 1 Protection 51V unit 2 101 Directional current protections 2 101 1 1 Protection 67 unit 1 2 101 2 1 Protection 67 unit 2 L 2 101 3 1 Protection 67N unit 1 2 101 4 1 Protection 67N unit 2 102 Voltage protections 2 102 1 1 Protection 27 27S unit 1 2 102 2 1 Protection 27 27S unit 2 L 2 102 3 1 Protection 27 27S unit 3 2 102 4 1 Protection 27 27S unit 4 2 102 5 1 Protection 27D unit 1 2 102 6 1 Protection 27D unit 2 2 102 7 1 Protection 27R unit 1 L 2 102 8 1 Protection 27R unit 2 2 102
3. 1 106 34 1 Protection 38 49T alarm sensor 4 module 1 1 106 35 1 Protection 38 49T alarm sensor 5 module 1 1 106 36 1 Protection 38 49T alarm sensor 6 module 1 1 106 37 1 Protection 38 49T alarm sensor 7 module 1 1 106 38 1 Protection 38 49T alarm sensor 8 module 1 1 106 41 1 Protection 38 49T alarm sensor 1 module 2 1 106 42 1 Protection 38 49T alarm sensor 2 module 2 1 106 43 1 Protection 38 49T alarm sensor 3 module 2 1 106 44 1 Protection 38 49T alarm sensor 4 module 2 1 106 45 1 Protection 38 49T alarm sensor 5 module 2 1 106 46 1 Protection 38 49T alarm sensor 6 module 2 1 106 47 1 Protection 38 49T alarm sensor 7 module 2 1 106 48 1 Protection 38 49T alarm sensor 8 module 2 107 Power protections 2 107 1 1 Protection 32P unit 1 2 107 2 1 Protection 32P unit 2 2 107 3 1 Protection 320 2 107 11 1 Protection 37P unit 1 2 107 12 1 Protection 37P unit 2 108 Differential protections 2 108 1 1 Protection 64REF unit 1 2 108 2 1 Protection 64REF unit 2 2 108 10 1 Protection 87T2 2 108 11 1 Protection 87M 87G 109 Speed protections 1 109 1 1 Protection 12 unit 1 1 109 2 1 Protection 12 unit 2 1 109 3 1 Protection 14 unit 1 1 109 4 1 Protection 14 unit 2 SEPED3050
4. 10 Temperature sensor 2 module 2 E MEA11 Temperature sensor 3 module 2 12 Temperature sensor 4 module 2 MEA13 Temperature sensor 5 module 2 L MEA14 Temperature sensor 6 module 2 n 15 Temperature sensor 7 module 2 MEA16 Temperature sensor 8 module 2 L 11 Additional measurements 1 9 11 1 2 13 information elements MEA1 to MEA13 MEA1 Residual current 102 m 05 or 10 MEA2 Residual current 10 m 05 or 10 Negative sequence unbalance 4 Phase to phase voltage 021 m MEA5 Phase to phase voltage 032 MEA6 Phase to phase voltage U13 MEAT Residual voltage VO MEA8 Positive sequence voltage 9 Negative seguence voltage Vi L MEA10 Power factor Phi 11 Neutral point voltage Vnt 12 Total harmonic distortion Uthd MEA13 Total harmonic distortion Ithd 12 Additional measurements 2 9 12 1 2 16 information elements MEA1 to MEA16 MEA1 Phase current 11 MEA2 Phase current 2 MEAS Phase current MEA4 Residual current l 0X MEAS Residual current MEA6 Phase to phase voltage U 21 MEAT Phase to phase voltage U 32 Phase to phase voltage U 13 E 9 Phase to neutral voltage V 1 MEA10 Phase to neutral voltage 2 11 Phase to ne
5. SEPED305002EN 03 2011 Appendix 2 File transfer Use of files by the supervisor DR or TR directory files A directory file is a list of file descriptors Size Description File x descriptor bytes ionit 2 File type Least significant N 1 Single file Most significant E Least significant _ 4 File size in bytes 32 bit value B Most significant 16H 22 1 Length of XXh byte 1 22 File name 22 ASCII characters yyyy mm dd hh mn sssss XXh byte 22 Disturbance record file DR yyyy mm dd hh mn sssss Disturbance records produced by Sepam are coded in COMTRADE format This format is also the one used in the IEC 60870 5 103 standard only the file reading procedure is different from the one defined by IEC 60870 5 103 A COMTRADE disturbance record consists of two standard files m A CFG file which includes the record configuration parameters definition of analog and digital channels recorded definition of sampling characteristics m A DAT file which includes the sampled values recorded for each channel The disturbance record files are stored in Sepam in the directory DR The name of each file gives the date and time of its production It is coded yyyy mm dd hh mn sssss A disturbance record file produced by Sepam is structured in such a way that the COMTRADE CFG and DAT files can be easily obtained Structure of a Sepam disturbance record file Size Description b
6. 1 21 13 1 External tripping 1 1 21 14 1 External tripping 2 1 21 15 1 External tripping 3 1 21 16 1 Load shedding 1 21 17 1 Restart 1 21 18 11 9 m Additional phase reverse rotation L 1 21 19 11 9 m Recloser ready 1 21 20 1 Recloser final trip 1 21 21 1 Send blocking signal 1 1 21 22 1 Send blocking signal 2 1 21 23 1 9 m Closing circuit supervision 1 21 24 1 Request for synchro checked closing 1 21 25 1 Synchronization stop 1 21 26 1 Synchronization failure 1 21 27 1 Synchronization successful 1 21 28 1 dU synchronization failure 1 21 29 1 dPhi synchronization failure 1 21 30 1 dF synchronization failure 1 21 31 1 Manual capacitor step control 1 21 32 1 Automatic capacitor step control 1 21 33 1 Capacitor step 1 matching fault 1 21 34 1 Capacitor step 2 matching fault 1 21 35 1 Capacitor step 3 matching fault 1 21 36 1 Capacitor step 4 matching fault 1 21 37 1 Coupling closing order 1 21 38 1 Coupling synchronization failure 1 21 38 1 Tripping by automatic transfer AT 1 21 40 1 Cumulative breaking current monitoring 1 21 102 20 21 Ack of command Priority group shutdown 1 21 103 20 21 Ack of command Enable Disable synchro check 1 21 104 120 21 Ack of command Enable Disable voltage check 1 21 105 120 21 Ack
7. File names Each file is identified by a name coded in ASCII character File File name Size of file name in bytes DR directory DR 2 Disturbance records yyyy mm dd hh mn sssss 22 TR directory TR 2 Tripping contexts yyyy mm dd hh mn sssss 22 The name of Disturbance record and Tripping context files is encoded with the date the file is saved by Sepam m yyyy year coded on 4 ASCII characters m mm month coded on 2 ASCII characters from 01 to 12 m dd day coded on 2 ASCII characters from 01 to 31 m hh hour coded on 2 ASCII characters from 00 to 23 m mn minutes coded on 2 ASCII characters from 00 to 59 m sssss milliseconds coded on 5 ASCII characters from 00000 to 59999 Transfer principle A Disturbance record file is transferred from Sepam to the supervisor in three stages 1 The DR directory file is read by the supervisor 2 The contents of the DR file is interpreted by the supervisor to identify the Disturbance record file to be transferred 3 The selected Disturbance record file is read A Tripping context file is transferred from Sepam to the supervisor in the same way using the TR directory file 30 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 Appendix 2 File transfer General Reading a file Procedure The same procedure applies for reading all files directory files and data files This consists of an exchange of reguests responses between th
8. 8 2 Link layer There are no choices for the link layer 8 3 Application layer 8 3 1 Transmission mode for application data Mode 1 least significant byte first as defined in 4 10 of IEC 60870 5 4 is used exclusively in this companion standard 8 3 2 COMMON ADDRESS OF ASDU One COMMON ADDRESS OF ASDU identical to station address More than one COMMON ADDRESS OF ASDU 8 3 3 Selection of standard information numbers in monitoring direction 8 3 3 1 System functions in monitoring direction INF Semantics lt 0 gt End of general interrogation 0 Time synchronization lt 2 gt Reset FCB lt 3 gt Reset CU 4 Start restart lt 5 gt Poweron SERRE SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 IEC 60870 5 103 protocol Sepam communication profile 8 3 3 2 Status indications in monitoring direction INF lt 16 gt lt 17 gt lt 18 gt lt 19 gt lt 20 gt lt 21 gt lt 22 gt VI 23 lt 24 gt lt 25 gt lt 26 gt lt 27 gt lt 28 gt lt 29 gt lt 30 gt Semantics Auto recloser active Teleprotection active Protection active LED reset Monitoring direction blocked Test mode Local parameter setting Characteristic 1 Characteristic 2 Characteristic 3 Characteristic 4 Auxiliary input 1 Auxiliary i
9. Most significant Schneider IEC 60870 5 103 Appendix 2 File transfer communication ASDU coding Reading a data block Read Block request Field Size Description bytes 254 1 ASDU number 101 1 FUN function number 4 Open file identifier provided by Sepam in the Open response 4 Block number to be read Read Block positive response Field Size Description bytes 255 1 ASDU number 101 1 FUN function number 4 Open file identifier 4 Block number read most significant bit at 1 if last block n 1 Block size in bytes Byte 1 n Block data Byten For the last block the most significant bit in the Block number field is set to 1 by Sepam Read Block negative response Field Size Description bytes 255 1 ASDU number 103 1 FUN function number 4 Open file identifier Status 1 Error report Closing a file Close request Field Size Description bytes 254 1 ASDU number 106 FUN function number 1 X 1 Request number selected arbitrarily by the supervisor 4 Open file identifier provided by Sepam in the Open response Close response Field Size Description bytes 255 1 ASDU number 106 1 FUN function number X 1 Number of the corresponding Close req 4 Open file identifier provided by Sepam in the Open response Status 1 Execution report 34 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 com
10. 20 21 106 20 Close capacitor step 2 Open capacitor step 2 OFF 20 21 107 20 Close capacitor step 3 ON Open capacitor step 3 OFF 20 21 108 20 Close capacitor step 4 ON Open capacitor step 4 OFF Other commands 20 105 101 20 Reset undercurrent protection ON 20 106 3 20 Inhibit thermal protection ON Confirm thermal protection OFF 41 Logipam group 1 series 80 option TC available for the user 20 41 106 20 TC6 20 41 107 20 TC7 20 41 110 20 TC10 to 17 117 42 Logipam group 2 Sepam series 80 option TC available for the user 20 42 121 20 TC21 to TC29 129 43 Logipam group 3 series 80 option TC available for the user 20 43 149 20 TC49 to TC64 164 SEPED305002EN 03 2011 Schneider 19 PE80012 PE80013 IEC 60870 5 103 communication _ SFT2841 Sepam series 80 Incomer2 682 H Edt Operation Application Options Window General characteristics sensors ETAVT Supervision Particular characteristics Control logie Logic xr 2 label Incomes no2 Hardware setup G82 Model Mmicbasedum 2 M 17 COMI Modbus No1 960084 Odd Unsecured IV METMBN 1 8 temperatures PT100 Other Use METMBN2 8 temperatures 5 141 1 analog output m
11. Frame sequences exchanged in order to read a file Use of files by the supervisor Schneider Electric O 060 N PB103454 PB103453 DE81051 IEC 60870 5 103 communication ACE969TP 2 communication interface 20232 ACE969FO 2 communication interface SFT2841 I I I I Sepam series 20 969 2 Sepam series 40 ACE969 2 Sepam series 60 80 ACE969 2 Two independent networks S LAN IEC 60870 5 103 supervision E LAN For SFT2841 operating functions 2 Schneider Presentation General IEC 60870 5 103 communication enables Sepam units to be connected to a supervisor or other device featuring an IEC 60870 5 103 communication channel Communication is based on the master slave principle m Sepam is always a slave station m The master is the supervisor or another device IEC 60870 5 103 communication is available via the ACE969 2 communication interface ACE969 2 is a multiprotocol communication interface with two independent communication ports m The S LAN Supervisory Local Area Network port is used to connect Sepam to a communication network dedicated to supervision m The Engineering Local Area Network port is reserved for specific setup operating an
12. parameter and check that the supervisor is sending frames to Sepam The communication protocol selected is incorrect Check the communication protocol selected S LAN Rx LED off The supervisor is not sending frames on the network Check that the supervisor is operating correctly The S LAN network is not properly connected Check the connection of the S LAN network and the RS 485 remote power supply Tx or Rx LED is on while the RS 485 communication network is idle The idle voltage state of the RS 485 network is incorrect m Check that the pull up and pull down bias resistors are correctly installed on the RS 485 network m Check that the 2 load resistors are correctly installed at each end of the RS 485 network SEPED305002EN 03 2011 Schneider IEC 60870 5 103 Appendix 1 Sepam data coding communication Presentation The Monitoring and Control data managed by Sepam is coded in accordance with the structure of standard ASDUs as specified in standard IEC 60870 5 103 ASDU COT Monitoring Control Description direction direction 1 1 Changes of state 1 9 States in response to general interrogation 2 1 Protection equipment tripping indication 5 34 5 Identification 9 2 Measurements 20 20 Commands Status information coding ASDU 1 and ASDU 2 Information on Sepam states and indications is coded using ASD
13. 104 Motor generator protections a 33 Logic inputs MES no 3 105 Miscellaneous protections 100 Overcurrent protections NA a 41 Logipam group 1 V 106 Thermal protections 101 Directional NA NA L 42 Logipam group 2 107 Power protections current protections 43 Logipam group 3 108 Differential protections 102 Voltage protections Tn Speer proectone 103 Frequency protections NA 10 Temperature measurements 104 Motor generator protections NA 105 Miscellaneous protections 12 Additional measurements 2 Configuration of the IEC 60870 5 103 protocol 106 Thermal protections NA 107 Power protections NA NA 108 Differential protections 109 Speed protections NA NA NA Measurements 10 Temperature measurements NA o o 11 Additional measurements 1 m 12 Additional measurements 2 NA NA NA NA m Function available and selected by default Function available and not selected by default NA Not Applicable Function not available for a Sepam series not displayed in the IEC103 Protocol parameters window SEPED305002EN 03 2011 Schneider 23 PB103454 PE80016 IEC 60870 5 103 communication A DANGER HAZARD OF ELECTRIC SHOCK ELECTRIC ARC OR BURNS m Only gualified personnel should install this eguipement Such work should be
14. 106 1 1 Protection 49 RMS alarm set point 1 106 2 1 Protection 49 RMS tripping set point 106 3 1 9 12 Thermal protection tripping inhibited 20 21 1 106 11 1 Protection 38 49T tripping sensor 1 module 1 1 106 12 1 Protection 38 49T tripping sensor 2 module 1 1 106 13 1 Protection 38 49T tripping sensor 3 module 1 1 106 14 1 Protection 38 49T tripping sensor 4 module 1 1 106 15 1 Protection 38 49T tripping sensor 5 module 1 1 106 16 1 Protection 38 49T tripping sensor 6 module 1 1 106 17 1 Protection 38 49T tripping sensor 7 module 1 1 106 18 1 Protection 38 49T tripping sensor 8 module 1 1 106 21 1 Protection 38 49T tripping sensor 1 module 2 1 106 22 1 Protection 38 49T tripping sensor 2 module 2 1 106 23 1 Protection 38 49T tripping sensor 3 module 2 1 106 24 1 Protection 38 49T tripping sensor 4 module 2 1 106 25 1 Protection 38 49T tripping sensor 5 module 2 1 106 26 1 Protection 38 49T tripping sensor 6 module 2 1 106 27 1 Protection 38 49T tripping sensor 7 module 2 1 106 28 1 Protection 38 49T tripping sensor 8 module 2 1 106 31 1 Protection 38 49T alarm sensor 1 module 1 1 106 32 1 Protection 38 49T alarm sensor 2 module 1 1 106 33 1 Protection 38 49T alarm sensor 3 module 1
15. 5 3 Application layer Selected application information elements of IEC 60870 5 4 Layer 7 Selected link transmission procedures of IEC 60870 5 2 Link layer Selected transmission frame formats of IEC 60870 5 1 Layer 2 Fiber optic system based on IEC 60874 2 or IEC 60874 10 and IEC 60794 1 and IEC Physical layer 60794 2 or copper wire based system according to EIA RS 485 Layer 1 IEC 60870 5 103 communication profile SEPED305002EN 03 2011 IEC 60870 5 103 protocol Presentation The IEC 60870 5 103 protocol is companion standard for the informative interface of protection equipment Standard IEC 60870 5 103 was prepared by IEC technical committee 57 Power system control and associated communications It is a companion standard for the basic standards in series IEC 60870 5 As acompanion standard it adds semantics to the definitions and functional profiles specified in the basic standards Definition of the particular uses for information objects m Definition of specialist information objects m Definition of service procedures or additional parameters in respect of the basic standards Standard IEC 60870 5 103 defines communication between protection equipment and devices of a control system supervisor or RTU in a substation Standard IEC 60870 5 103 can be obtained in full from the International Electrotechnical Commission http www iec ch Schneider 3 IEC 60870 5 103
16. Logic input 112 112 112 102 1102 1 31 3 1 9 m Logic input 113 113 113 103 1103 1 31 4 1 9 Logic input 114 114 114 104 1104 1 31 5 1 9 m Logic input 121 121 121 105 1105 1 31 6 1 9 m Logic input 122 122 122 106 1106 1 31 7 1 9 m Logic input 123 123 123 107 1107 1 31 8 1 9 m Logic input 124 124 124 108 1108 1 31 9 1 9 m Logic input 125 125 125 109 1109 1 31 10 11 9 m Logic input 126 126 126 110 110 1 31 11 1 9 m Logic input 111 1111 1 31 12 11 9 m Logic input 112 1112 1 31 13 1 9 m Logic input 113 1113 1 31 14 1 9 m Logic input 114 1114 32 Logic inputs MES no 2 1 32 110 1 9 m Logic inputs 1201 to 1214 14 Logic inputs MES no 3 1 3 110 1 9 Logic inputs 1301 to 1314 14 41 Logipam group 1 Sepam series 80 option 1 41 16to 1 9 TS16to TS31 31 1 41 106 20 21 of command TC6 1 41 107 20 21 Ack of command TC7 1 41 110 20 21 Ack of command TC10 to to 117 Ack of command TC17 42 Logipam group 2 Sepam series 80 option 1 42 3310 1 9 m TS33 to TS48 48 1 42 121 20 21 Ack of command TC21 10 to 129 Ack of command TC29 43 Logipam group 3 Sepam series 80 option 1 43 5210 1 9 TS52to TS64 64 1 43 149 20 21 Ack of command TC49 L to to 164 Ack of command TC64 14 Scbneider SEPED305002EN 03 2011 IEC 60870 5 103 communication IEC 60870 5 103 protocol Sepam data table Monitoring direction
17. Publication Schneider Electric Printed 03 2011
18. defined in 7 2 6 8 the maximum MVAL can either be 1 2 or 2 4 times the rated value No different rating shall be used in ASDU 3 and ASDU 9 i e for each measurand there is only one choice Measurand Max MVAL rated value times 1 2 or 2 4 4 Current L1 Current L2 Current L3 Voltage L1 E Voltage L2 E Voltage L3 E Active power P Reactive power Q Frequency f Voltage L1 12 Electric Schneider 9 IEC 60870 5 103 communication All Sepam data that can be exchanged with a supervisor via the IEC 60870 5 103 protocol is listed in two tables m The monitoring direction data table which lists all Sepam data to be transmitted to the supervisor m The control direction data table which lists all supervisor data to be transmitted to Sepam IEC 60870 5 103 protocol Sepam data table Description of the Sepam data table The following information is provided for each data item The ASDU Application Service Data Unit number The value of the FUN Function and INF Information identifiers The value of the COT Cause Of Transmission field A GI General Interrogation marker The Sepam data semantic m The Sepam series for which the data is available For Sepam series 20 Sepam B2X dedicated to voltage applications are distinct from Sepam S20 T20 and M20 dedicated to current applications
19. from 0 to 59999 Milliseconds least significant SEPED305002EN 03 2011 IEC 60870 5 103 Appendix 2 File transfer communication Use of files by the supervisor The tripping context comprises the 44 measurements listed in the table below No Information Format Unit 1 Tripping current phase 1 Itrip1 32NS 01 2 Tripping current phase 2 Itrip2 32NS 3 Tripping current phase 3 Itrip3 32NS 01 4 Residual current 105 32NS 01 5 Residual current 10 32NS 6 Negative sequence current li 32NS 7 Phase to phase voltage 021 32NS 1V 8 Phase to phase voltage U32 32NS 1V 9 Phase to phase voltage U13 32NS 1V 10 Phase to neutral voltage V1 32NS 1V 11 Phase to neutral voltage V2 32NS 1V 12 Phase to neutral voltage V3 32NS 1V 13 Residual voltage VO 32NS 1V 14 Positive seguence voltage Vd 32NS 1V 15 Negative seguence voltage Vi 32NS 1V 16 Frequency f 32NS 0 01 Hz 17 Active power P 32S 1 kW 18 Reactive power Q 32S 1 kvar 19 Apparent power S 328 1kVA 20 Additional tripping current l trip1 32NS 0 1A 21 Additional tripping current l trip2 32NS 0 1A 22 Additional tripping current 32NS 0 1A 23 Additional residual current 32NS 0 1A 24 Additional residual current 32NS 0 1A 25 Additional negative sequence current l i 32NS 0 1A 26 Phase to phase voltage U 21 32NS 1V 27 Phase to phase voltage U 32
20. 02EN 03 2011 Schneider 17 d Electric IEC 60870 5 103 communication IEC 60870 5 103 protocol Sepam data table Monitoring direction ASDU FUN INF COT GI Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other 40 series 60 series 80 160 Standard measurements 8 160 148 2 9 information elements MEA1 to MEA9 MEA1 Phase current 11 2 Phase current I2 Phase current 13 4 Phase to neutral voltage V1 L L 5 Phase to neutral voltage V2 L L MEA6 Phase to neutral voltage V3 MEAT Active power P MEA8 Reactive power L MEA9 Frequency f 10 Temperature measurements 9 10 1 2 16 information elements 16 temperatures MEA1 to MEA16 as a of full scale i e 200 C MEA1 Temperature sensor 1 module 1 L MEA2 Temperature sensor 2 module 1 L Temperature sensor 3 module 1 MEA4 Temperature sensor 4 module 1 L MEA5 Temperature sensor 5 module 1 MEA6 Temperature sensor 6 module 1 L 7 Temperature sensor 7 module 1 L L MEA8 Temperature sensor 8 module 1 9 Temperature sensor 1 module 2
21. 103 communication SEPED305002EN 03 2011 IEC 60870 5 103 protocol Sepam communication profile 8 3 4 Selection of standard information numbers in control direction 8 3 4 1 System functions in control direction Semantics 0 Initiation of general interrogation lt 0 gt Time synchronization 8 3 4 2 General commands in control direction INF Semantics 16 Auto recloser on off 17 Teleprotection on off 18 Protection on off 19 LED reset 23 Activate characteristic 1 24 Activate characteristic 2 25 Activate characteristic 3 26 Activate characteristic 4 8 3 4 3 Generic functions in control direction INF Semantics lt 240 gt Read headings of all defined groups lt 241 gt Read values or attributes of all entries of one group lt 243 gt Read directory of a single entry lt 244 gt Read value or attribute of a single entry lt 245 gt General interrogation of generic data lt 248 gt Write entry lt 249 gt Write entry with confirmation lt 250 gt Write entry with execution lt 251 gt Write entry aborted 8 3 5 Basic application functions Test mode M Blocking of monitoring direction Disturbance data Generic services M Private data 8 3 6 Miscellaneous Measurands are transmitted with ASDU 3 as well as with ASDU 9 As
22. 11 1 Protection 59 unit 1 L 2 102 12 1 Protection 59 unit 2 2 102 19 1 Protection 59 unit 3 L 2 102 14 1 Protection 59 unit 4 2 102 21 1 Protection 59N unit 1 2 102 22 1 Protection 59N unit 2 L 2 102 31 1 Protection 275 phase 1 2 102 32 1 Protection 27S phase 2 2 102 33 1 Protection 27S phase 3 SEPED305002EN 03 2011 Schneider d Electric IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Monitoring direction ASDU FUN INF Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 gt series 80 103 Frequency protections 2 103 1 1 Protection 81H unit 1 2 103 2 1 Protection 81H unit 2 2 103 11 1 Protection 81L unit 1 2 103 12 1 Protection 81L unit 2 2 103 13 1 Protection 81L unit 3 2 103 14 1 Protection 81L unit 4 2 103 21 1 Protection 81 unit 1 2 103 22 1 Protection 81R unit 2 104 Motor generator protections 2 104 1 1 Protection 48 51LR locked rotor E 2 104 2 1 Protection 48 51LR rotor at start up 2 104 3 1 Protection 48 51LR excessive starting time 1 104 4 1 9 Protection 66 2 104 5 1 Protection 21B 2 104 6 1 Protect
23. 32NS 1V 28 Phase to phase voltage U 13 32NS 1V 29 Phase to neutral voltage V 1 32NS 1V 30 Phase to neutral voltage V 2 32NS 1V 31 Phase to neutral voltage V 3 32NS 1V 32 Residual voltage V O 32NS 1V 33 Positive sequence voltage V d 32NS 1V 34 Negative sequence voltage V i 32NS 1V 35 Frequency f 32NS 0 01 Hz 36 Neutral point voltage Vnt 32NS 1V 37 H3 neutral point voltage V3nt 32NS 0 1 38 H3 residual voltage V3r 32NS 0 1 39 Differential current 191 32NS 01 40 Differential current Id2 32NS 01 41 Differential current Id3 32NS 42 Through current It1 32NS 43 Through current 12 32NS 44 Through current It3 32NS The tripping context measurements are 32 bit numeric values coded on 4 bytes from the most significant to the least significant The following formats are used m 32 NS 32 bit non signed value m 32 5 32 bit signed 2 s complement value SEPED305002EN 03 2011 Schneider 39 Schneider E Electric SEPED305002EN 03 2011 ART 805763 2011 Schneider Electric All rights reserved Schneider Electric Industries SAS 35 rue Joseph Monier CS 30323 F 92506 Rueil Malmaison Cedex RCS Nanterre 954 503 439 Share capital 896 313 776 www schneider electric com SEPED305002EN 6 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication om Printed on recycled paper Production Assystem France
24. 6 lt 84 gt General start pick up lt 85 gt Breaker failure lt 86 gt Trip measuring system L1 lt 87 gt Trip measuring system L2 lt 88 gt Trip measuring system L3 lt 89 gt Trip measuring system E 90 Trip I gt M 91 Trip I gt gt lt 92 gt Trip IN gt lt 93 gt Trip IN gt gt 8 3 3 6 Auto reclosure indications in monitoring direction INF Semantics 128 by AR lt 129 gt CB on by delayed AR lt 130 gt AR blocked 8 3 3 7 Measurands in monitoring direction INF Semantics lt 144 gt Measurand lt 145 gt Measurands I V 146 Measurands V P lt 147 gt Measurands IN VEN 148 Measurands IL1 2 3 VL1 2 3 P Q f 8 3 3 8 Generic functions in monitoring direction INF Semantics 240 Read headings of all defined groups 241 Read values or attributes of all entries of one group 243 Read directory of a single entry 244 Read value or attribute of a single entry 245 End of general interrogation of generic data 249 Write entry with confirmation 250 Write entry with execution 251 Write entry aborted 8 Schneider SEPED305002EN 03 2011 IEC 60870 5
25. Electric Schneider 27 IEC 60870 5 103 Appendix 1 Sepam data coding communication Measurement coding ASDU 9 Sepam measurements are coded using ASDU 9 They are obtained via requests to scan class 2 data The size of ASDU 9 depends on the number of measurements provided The number of measurements is shown in the Structure qualifier field ASDU 9 Bytes Description 1 9 ASDU number 2 n Number of measurements coded in ASDU 3 2 COT 2 cyclical 4 ASDU common address Sepam address 5 FUN FUN function number 6 INF INF information number 7 MES 1 Measurement 1 least significant byte 8 Measurement 1 most significant byte MESn Measurement n least significant byte zz Measurement most significant byte Where Zz 8 2x n 1 Each measurement is coded on 2 bytes The value provided is a value standardized by IEC 60870 5 103 which is coded as a 13 bit 2 s complement value bits 3 to 15 It is expressed in relation to a reference value Bit 0 is the overflow bit OV Overflow Bit 1 is the error bit ERR Bit 2 is a reserved bit RES it is always 0 Most significant byte Least significant byte 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Signed IEC standardized value on 13 bits RES ERR OV The actual value measured by is obtained from the IEC standardized value using the following formula Stan
26. Electrical network protection Sepam IEC 60870 5 103 communication For Sepam series 20 40 60 80 User s manual 03 2011 Schneider Electric Safety instructions Safety symbols and messages Read these instructions carefully and look at the equipment to become familiar with the device before trying to install operate service or maintain it The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure followed Risk of electric shock N The addition of either symbol to a Danger or Warning safety label indicates that an 7 electrical hazard exists which will result in personal injury if the instructions are not ANSI symbol IEC symbol Safety alert This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death Safety messages A DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury A WARNING WARNING indicates a potentially hazardous situation which if not avoided can result in death or serious injury A CAUTION CAUTION indicates a potentially hazardous situation which if not avoided can result in minor or moderate injury CAUTION CAUTION used without the sa
27. IEC 60870 5 103 protocol communication Protocol principle General Standard IEC 60870 5 103 defines a multipoint communication protocol via which information can be exchanged between a control system supervisor or RTU and one or more protection devices The control system is the master and the protection devices are the slaves Each slave is identified by a unique address between 1 and 254 Address 255 is reserved for broadcast frames Standard IEC 60870 5 103 defines two different methods for exchanging information m The first is based on the use of predefined data structures ASDU Application Service Data Units and application procedures supporting the transmission of standardized information m The other uses generic services supporting the transmission of any type of information Sepam does not use generic services The protocol distinguishes between m The Monitoring direction for the transmission of ASDUs sent by a protection device slave device to the control system master device m The Control direction for ASDUs sent by the control system to a protection device Monitoring direction Communication is based on the cyclic transmission of link layer polling reguests by the master in order to invite the slave to send its data m Class 1 data polling is usually used for event transmission m Class 2 data polling is used for the cyclic transmission of metering information Control direction The master can send m G
28. Sepam data List of IEC 60870 5 103 standard functions Sepam supports the subset of standard functions shown below Sepam uses the standard FUN and INF numbers for these functions FUN Function name 255 System 160 Overcurrent protection List of Sepam specific functions Sepam uses private FUN and INF numbers for these functions FUN Function name States and indications 20 Sepam supervision 21 Switchgear and network 22 Logic eguations 31 Logic inputs MES no 1 32 Logic inputs MES no 2 33 Logic inputs MES no 3 41 Logipam group 1 42 Logipam group 2 43 Logipam group 3 Protections 100 Overcurrent protections 101 Directional current protections 102 Voltage protections 103 Freguency protections 104 Motor generator protections 105 Miscellaneous protections 106 Thermal protections 107 Power protections 108 Differential protections 109 Speed protection Measurements 10 Temperature measurements 11 Additional measurements 1 12 Additional measurements 2 List of standard ASDUs Sepam supports the subset of standard ASDUs shown below ASDU Function Monitor Control direction direction 1 Time tagged message 2 Time tagged message with relative time 5 Identification message 6 Time synchronization 7 General interrogation L 8 End of general interrogation L 8 Measurands II L 20 General command L
29. The effective availability of a Sepam data item also depends on the Sepam type and function parameter settings ASDU Application Service Data Unit The ASDU number identifies the standard data structure used by Sepam for data transmission FUN and INF Function number and information number Each Sepam data item is identified by m The number of the function to which the data belongs FUN m The information number of the basic data INF COT Cause Of Transmission The COT value shows the cause of transmission of the data Monitoring direction In the monitoring direction Sepam uses the following COT values COT Label 1 Spontaneous Information produced spontaneously following a change of state date tagged event 2 Cyclic Information produced cyclically by Sepam measurements 3 Reset FCB Response to command to reset the frame count bit FCB 4 Reset CU Response to command to reset the communication unit CU 5 Start restart Response to command to initialize the communication interface 8 Time synchronization Acknowledgment of time synchronization command 9 General interrogation Information produced in response to a general interrogation command 10 End of general interrogation Termination message of a general interrogation cycle 12 Remote operation Change of state resulting from a supervisor command 20 Positive acknowledgement Positive acknowledgment of command 21 Negative acknowledgement Neg
30. U 1 and ASDU 2 It is obtained via requests to scan class 1 data ASDU 1 Bytes Description 1 1 ASDU number 2 81h Structure qualifier 3 1or9 COT 1 spontaneous or 9 General Interrog resp 4 ASDU common address Sepam address 5 FUN FUN function number 6 INF INF information number 7 DPI DPI Double Point Information 1 OFF 2 ON 8 Milliseconds least significant byte g Time tagged Milliseconds most significant byte 10 lake Minutes invalidity bit most significant bit l Hours Summer time bit most significant bit 12 Additional information 0 if COT 1 General interrogation number if COT 9 ASDU 2 Bytes Description 1 2 ASDU number 2 81h Structure qualifier 3 1 COT 1 spontaneous 4 ASDU common address Sepam address 5 FUN FUN function number 6 INF INF information number 7 DPI DPI Double Point Information 1 OFF 2 8 0 REL Relative time elapsed between appearance 9 0 of the fault and tripping not managed by Sepam 10 0 FAN Fault number not managed by Sepam PC 0 ij 12 Milliseconds least significant byte 13 Time tagged Milliseconds most significant byte 41 Minutes invalidity bit most significant bit 15 Minutes Summer time bit most significant bit 16 Additional information 0 if COT 1 General interrogation number if COT 9 26 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 Appendix 1 Sepam data coding Sepa
31. UTDOWN 1 22 29 1 9 m V DE EXCITATION 1 22 30 1 9 m V CLOSE NOCTRL 1 22 31 11 9 m V TRIP STP1 1 22 32 11 9 m V TRIP STP2 1 22 33 11 9 m V TRIP STP3 1 22 34 1 9 m V TRIP STP4 1 22 35 1 9 m V_CLOSE_STP1 1 22 36 1 9 m V CLOSE STP2 1 22 37 11 9 m V CLOSE STP3 1 22 38 1 9 m V CLOSE STP4 1 22 39 1 9 m V TRANS ON FLT 1 22 40 1 9 m V TRANS STOP 1 22 41 1 9 m V MIMIC IN 1 1 22 42 1 9 m IN 2 1 22 43 1 9 m V MIMIC IN 3 1 22 4 1 9 m V MIMIC IN 4 1 22 45 1 9 m V MIMIC IN 5 1 22 46 1 9 m V MIMIC IN 6 1 22 47 1 9 m V MIMIC IN 7 1 22 48 1 9 m V MIMIC IN 8 1 22 49 1 9 m V MIMIC IN 9 1 22 50 11 9 m V MIMIC IN 10 1 22 51 11 9 m V MIMIC IN 11 1 22 52 11 9 m V MIMIC IN 12 1 22 53 11 9 m V MIMIC IN 13 1 22 54 1 9 m V MIMIC IN 14 1 22 55 1 9 m V MIMIC IN 15 1 22 56 11 9 m IN 16 SEPED305002EN 03 2011 Schnekler IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Monitoring direction ASDU FUN INF COT GI Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other series40 series60 series 80 31 Logic inputs MES no 1 1 31 1 1 9 m Logic input 111 111 H1 101 1101 1 31 2 1 9 m
32. age protections 103 Freguency protections 104 Motor generator protections 105 Miscellaneous protections 106 Thermal protections 107 Power protections 108 Differential protections 109 Speed protections lt lt I I lt I I lt I Configuration of the IEC 60870 5 103 protocol EN Schneider Configuring the communication interfaces Configuration of the S LAN port IEC 60870 5 103 protocol Configuration of the IEC 60870 5 103 protocol functions The configuration of the IEC 60870 5 103 protocol functions is identical whether the ACE969TP 2 interface or the ACE969FO 2 interface is used Click the Advanced parameters button in the ACE969 2 configuration windows to open the IEC 103 Protocol parameters window in which the following can be configured m The standard parameters as defined by standard IEC 60870 5 103 m The Sepam private data to be exchanged with the supervisor Configuration of the standard parameters The standard IEC 60870 5 103 protocol parameters are as follows m Cyclic ASDU period m Inactivity timer m Time synchronization period m Blocking of monitoring direction Cyclic ASDU period Period during which cyclic data such as measurement information is generated and updated by Sepam This parameter which is expressed in seconds must be set consistently with the interval at which this data is polled by the supervisor Inactivity timer In normal operation the sup
33. ative acknowledgment of command Control direction In the control direction Sepam supports the following COT values COT Label 8 Time synchronization Time synchronization command 9 General interrogation Initialization of a general interrogation cycle 20 General command Command from the supervisor such as open close breaker enable disable a function etc GI General Interrogation The marker indicates whether the data is produced in response to a general interrogation reguest For this data each change of state OFF to ON and ON to OFF is also transmitted spontaneously SEPED305002EN 03 2011 IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Monitoring ASDU FUN INF COT GI IEC 60870 5 103 semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 255 System functions 8 255 0 10 End of general interrogation 6 255 0 8 Time synchronization 5 255 2 3 Reset frame count bit FCB 5 255 3 4 Reset communication unit CU 5 255 4 5 Start restart L ASDU FUN INF COT GI IEC 60870 5 103 Sepam Sepam series 20 Sepam Sepam Sepam semantic semantic B2X Other series 40 series 60 series 80 160 Maximum overcurrent protection IEC 60870 5 103 standa
34. d adjustment functions This port is connected to the SFT2841 software tool The ACE969 2 interface is available in two versions linked to the physical interface of the S LAN supervision port m ACE969TP 2 Twisted Pair for an S LAN network 2 wire RS 485 serial link m ACE969FO 2 Fiber Optic for a fiber optic star or ring S LAN The E LAN engineering port is always a 2 wire RS 485 type port Accessible data IEC 60870 5 103 communication via the S LAN port provides access to a great deal of information in particular m Reading of metering information m Reading of status conditions and time tagged events m Transfer of files including disturbance records and tripping contexts m Time setting and synchronization m Transmission of remote controls The actual list depends on the application the type of Sepam the enabled functions and the ACE969 2 interface parameter settings Connecting the SFT2841 tool to the E LAN port also provides access to all Sepam function parameters and operating data m Hardware configuration parameters m Remote settings for protection functions m Switching on off of protection functions m Retrieval of disturbance records m Display of metering and diagnosis information m Display of logic states m Display of alarms SEPED305002EN 03 2011 IEC 60870 5 103 communication Selected application functions of User process IEC 60870 5 5 Selected application service data units of IEC 60870
35. dardized value CEI 1 Measured value Reference valuex 212 Sepam provides different types of measurements for which the reference values Measurement types Reference value Dynamic Currents 1 2 x Rated current 120 Voltages 1 2 x Rated voltage 120 Powers 1 2xUxIxv3 120 Freguencies 1 2 x Rated freguency 120 Negative seguence 1 2 120 unbalance total harmonic distortion etc Cos Phi 1 100 Temperature 200 C 100 For example if the rated current on Sepam is set to 630 A the current value coded as 3251 represents a measured current egual to 600 A The value 3251 OCB3h is coded Most significant byte Least significant byte Signed IEC standardized value on 13 bits RES OV 0 1 1 0 0 1 0 1 1 0 0 1 1 0 0 0 0 B 3 0 0 0 28 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 Appendix 1 Sepam data coding Command coding ASDU 20 Commands are sent to Sepam enable disable functions open close remote controls etc via ASDU 20 A command is always confirmed by Sepam through generation of an acknowledgement message by return using ASDU 1 COT 20 The General Command ASDU includes an identification number Return Information Identifier from O to 255 selected arbitrarily by the master This number is copied as is by Sepam into the Command Acknowledgement ASDU so that a
36. dow appears m Select the type of interface used ACE969TP 2 or ACE969FO 2 m Select the IEC103 communication protocol S LAN port Configuration of the E LAN port Configuration of the physical layer The E LAN port on the ACE969TP 2 and ACE969FO 2 communication interfaces is a 2 wire RS 485 port The configuration parameters for the physical layer of the E LAN port are m Sepam address m Transmission speed m Parity check type Parameters Authorized values Default value Sepam address 1 to 247 1 Speed 4800 9600 19200 or 38400 bps 38400 bps Parity No parity Even or Odd Odd Configuration tips m The Sepam address MUST be assigned before Sepam is connected to the E LAN communication network m You are also strongly advised to set the other physical layer configuration parameters before connecting to the communication network m Modifying the configuration parameters during normal operation will not disturb Sepam but will reset the E LAN communication port If SFT2841 is connected to Sepam via the E LAN network any communication between Sepam and SFT2841 will be interrupted SEPED305002EN 03 2011 PE80013 PE80014 IEC 60870 5 103 communication Communication configuration Communication interface ACE 969TP xl r S L N port Communication protocol IEC 103 El Sepam address 1 Speed 18200 Parity Even v Advanced parameters gt gt gt port Sepam address Speed Par
37. e data is organized into functional groups A functional group is identified by a function number FUN The data groups to be exchanged with the supervisor can be selected in the configuration window Only the data groups required for the application should be selected in order to avoid overloading communication unnecessarily in particular in the event of a general interrogation on the part of the supervisor IEC103 Protocol parameters 3 FUN Function Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 States and indications Cancel 20 Sepam supervision Cyclic ASDU period 10 5 21 Switchgear and network NA tiner 0 22 Logic equations NA NA o o Time synchronization period 0 mn 31 Logic inputs MES 1 o o H E 32 Logic inputs MES no 2 NA NA NA Blocking of monitoring direction C Yes No 33 Logic inputs MES 3 NA NA NA NA r States and indications 34 Protections 41 Logipam group 1 NA NA NA NA 20 supervision 100 Overcurrent protections 21 Switchgear and network 101 Directional current protectior 42 Logipam group 2 NA NA NA NA ja 22 Logic equations IV 102 Voltage protections 43 Logipam group 3 NA NA NA NA 31 Logic inputs MES no 1 103 Frequency protections Protections 32 Logic inputs MES 2
38. e supervisor and Sepam m The supervisor sends reguests based on ASDU 254 private ASDU m Responses from Sepam are retrieved by the supervisor via reguests to scan class 1 data Responses from Sepam are based on ASDU 255 private ASDU A file is read in three stages 1 The file to be transferred is opened via an Open reguest response 2 Data is transferred from the file through a succession of Read Block reguests responses 3 The file is closed via a Close reguest response Notes m Only one file can be open at any one time the directory must therefore be closed after reading in order to be able to read one of the files in this directory m For an open file only one transfer is permitted at any one time m A data block contains a maximum of 238 bytes The number of Read Block reguests necessary to transfer a file depends on its size ASDU reguests and responses ASDU FUN Control Monitoring Description direction direction 254 105 Open request 255 105 L Open response 254 101 Read Block request 255 101 Read Block positive response 255 103 Read Block negative response 254 106 L Close request 255 106 L Close response Schneider 31 Electric IEC 60870 5 103 communication 32 Schneider Appendix 2 File transfer General Checking and processing errors Sepam performs a series of checks to ensure that a file is read correctly Any error that occurs whilst a file is being read causes t
39. egular intervals Number of mistaken frames received not increasing Deviations from the above indicate that communication between Sepam and the supervisor has failed The table below lists the possible causes of communication failures along with the associated course Possible cause No power supply to ACE969 2 of action to be taken in each case Action Remedy Check the auxiliary power supply to the ACE969 2 Key LED on Protocol and or Version 2222 ACE969 2 failed Replace the ACE969 2 Key LED flashing Protocol 2222 and or Version ACE969 2 not configured Configure the ACE969 2 using SFT2841 ACE969 2 is not connected to Sepam Check the ACE969 2 connection to Sepam The ACE969 2 configuration is incorrect Use SFT2841 to check the interface selected ACE969TP 2 or ACE969FO 2 S LAN Rx LED flashing Increase in mistaken frame counter value The ACE969 2 physical layer configuration is incorrect Use SFT2841 to check the following parameters m Transmission speed m Parity The communication protocol selected is incorrect Check the communication protocol selected The S LAN network is not properly connected Check the connection of the S LAN network and the RS 485 remote power supply S LAN Rx LED flashing The frame counter values are not increasing The supervisor is not sending frames to Sepam Use SFT2841 to check the Sepam address
40. eneral commands enable disable functions protection recloser etc m general interrogation request to obtain the current value of slave equipment status conditions and indications m A transmission request for disturbance records m Time synchronization commands m Commands to reset the communication interface Communication initialization The slave communication interface only becomes operational once an initialization request sent by the master device has been received The absence of polling by the master is detected by the slave and this stops communication To re establish communication the master device must send a reset reguest Information characteristics All information exchanged between the control system and the protection eguipment features m A function number m An information number m The ASDU number used to transmit the information m The cause of the transmission 4 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 communication Sepam is a multifunctional digital relay which supplies a great deal of information Sepam data is categorized on the basis of function Compliant with the data model defined in IEC 60870 5 103 all data is identified by a function number FUN and an information number INF A detailed description of the Sepam data table including function number and information number appears in the Sepam data table section SEPED305002EN 03 2011 IEC 60870 5 103 protocol Access to
41. er s manual reference PCRED301005EN m Sepam series 40 user s manual reference PCRED301006EN m Sepam series 60 user s manual reference PCRED310017EN m Sepam series 80 operation manual reference SEPED303003EN Preliminary checks The following preliminary checks must be made m Check the CCA612 cord connection between the ACE969 2 interface and the Sepam base unit m Check the auxiliary power supply connection to the ACE969 2 m Check the connection between the S LAN communication port and the ACE969 2 m Check the complete configuration of the ACE969 2 Checking the operation of the ACE969 2 interface You can use the following to check that the ACE969 2 interface is operating correctly m The indicator LEDs on the front panel of the ACE969 2 m The information provided by the SFT2841 software connected to Sepam o On the Diagnosis screen o On the Communication configuration screens Indicator LEDs on the ACE969 2 Green on LED ACE969 2 energized Red key LED ACE969 2 interface status LED off ACE969 2 configured and communication operational LED flashing ACE969 2 configuration error or ACE969 2 not configured LED on ACE969 2 error S LAN and E LAN Tx Rx LEDs S LAN Tx LED flashing Sepam transmitting S LAN Rx LED flashing Sepam receiving Tx and Rx off RS 485 communication is idle Tx or Rx LED is on while the RS 485 communication network is idle the idle voltage state of the RS 485 network i
42. ervisor sends polling requests to the Sepam units at regular intervals Each Sepam monitors the activity of the supervisor by checking that polling reguests are being received regularly If a Sepam fails to receive reguests during a configurable period the inactivity time delay it will lock its communication port and cease to respond to reguests sent subseguently by the supervisor To re establish communication with a locked Sepam the supervisor must initiate a reset Time synchronization period Time synchronization is transmitted via ASDU 6 If this ASDU has not been received at the end of time T time synchronization period Sepam will assume that its clock setting may be inaccurate and will assign the information Invalid time to time tagged data Blocking of monitoring direction Sepam can suspend the transmission of data in the monitoring direction in accordance with the procedure specified by IEC 60870 5 103 Parameters Authorized values Default value Cyclic ASDU period 0 to 60 seconds 10 seconds Inactivity timer 0 to 60000 seconds 0 infinite Time synchronization period 0 to 60000 minutes 0 Blocking of monitoring direction No or Yes No SEPED305002EN 03 2011 PE80015 IEC 60870 5 103 Configuring the communication communication interfaces Selection of the data to be exchanged Sepam private data is categorized in three subsets m States and indications m Protections m Measurements In each subset th
43. fety alert symbol indicates a potentially hazardous situation which if not avoided can result in equipment damages Important notes Restricted liability Electrical equipment should be serviced and maintained only by qualified personnel No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this manual This document is not intended as an instruction manual for untrained persons Device operation The user is responsible for checking that the rated characteristics of the device are suitable for its application The user is responsible for reading and following the device s operating and installation instructions before attempting to commission or maintain it Failure to follow these instructions can affect device operation and constitute a hazard for people and property Protective grounding The user is responsible for compliance with all the existing international and national electrical codes concerning protective grounding of any device Schneider SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 Content Presentation IEC 60870 5 103 protocol Access to Sepam data Sepam communication profile Sepam data table Sepam data table Monitoring direction Sepam data table Control direction Configuring the communication interfaces Commissioning and diagnosis Appendix 1 Sepam data coding Appendix 2 File transfer General ASDU coding
44. he file to be closed automatically by Sepam Block number seguence check Data blocks are numbered starting at 0 Blocks must be read in ascending order It is possible to reread the same block i several times as long as no request has been made for the next block i 1 to be read A seguence error in the block number reguested in a Read Block reguest generates a negative Read Block response status incorrect block number Data integrity check A Disturbance record file or Tripping context file in Sepam can be overwritten at any time by a new record if a new event occurs If a file is in the process of being read then data obtained by the supervisor will be corrupt Sepam signals this error in the Close response status corrupt file Inactivity check aborting a read operation Sepam manages an inactivity time delay when a file read operation has been initialized and throughout the entire course of the read operation If there is more than 60 seconds between two Read Block reguests or between the last Read Block reguest and the Close reguest Sepam automatically closes the file A spontaneous Close response is generated by Sepam status file closed on detection of inactivity Execution reports Responses from Sepam contain an execution report coded in the Status field of ASDU 255 The values possible in the Status field are listed in the table below Status Description 0 OK 3 Open error response file doe
45. ion 50 27 L 2 104 7 1 Protection 64G2 27TN unit 1 L 2 104 8 1 Protection 64G2 27TN unit 2 L 2 104 9 1 Protection 78PS L 2 104 10 1 Protection 24 unit 1 2 104 11 1 Protection 24 unit 2 L 2 104 12 1 Protection 40 m 105 Miscellaneous protections 2 105 1 1 Protection 46 unit 1 2 105 2 1 Protection 46 unit 2 2 105 3 1 Protection 46BC 2 105 11 1 Protection 47 unit 1 2 105 12 1 Protection 47 unit 2 2 105 20 1 Protection 37 2 105 31 1 Protection 51C unit 1 capacitor step 1 2 105 32 1 Protection 51C unit 2 capacitor step 1 2 105 33 1 Protection 51C unit 3 capacitor step 2 2 105 34 1 Protection 51C unit 4 capacitor step 2 2 105 35 1 Protection 51C unit 5 capacitor step 3 2 105 36 1 Protection 51C unit 6 capacitor step 3 2 105 37 1 Protection 51C unit 7 capacitor step 4 2 105 38 1 Protection 51C unit 8 capacitor step 4 1 105 101 20 21 Ack of command Reset undercurrent protection 16 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Monitoring direction ASDU FUN INF COT GI Sepam semantic Sepam series 20 Sepam Sepam B2X Other series40 series 60 series 80 106 Thermal protections 1
46. ist of private ASDUs In addition to the functions and standard ASDU Sepam supports a File transfer function which uses private ASDUs This function can be used to retrieve m Tripping contexts Sepam series 60 Sepam series 80 only m Disturbance records Disturbance records are supplied in COMTRADE format ASDU Function Monitoring Control direction direction 254 Transfer command 255 Transfer response Schneider d Electric IEC 60870 5 103 communication The Sepam communication profile defines how the options of standard IEC 60870 5 103 are implemented by Sepam The presentation format and numbering used in this section are intentionally based on clause 8 Interoperability of standard IEC 60870 5 103 Indicates that Sepam supports the option from the standard Indicates that Sepam does not support the option 6 Schneider Electric IEC 60870 5 103 protocol Sepam communication profile 8 Interoperability 8 1 Physical layer 8 1 1 Electrical interface M EIA RS 485 Number of loads for one protection device Nota EIA RS 485 standard defines unit loads so that 32 of them can be operated on one line For detailed information refer to clause 3 of RS 485 standard 8 1 2 Optical interface Glass fiber Plastic fiber F SMA type connector BFOC 2 5 type connector 8 1 3 Transmission speed 9 600 bps 19 200 bps
47. ity 38400 Odd Exi Configuration of the physical layer of the S LAN port on an ACE969TP Communication configuration Communication interface r S L N port Cancel Apply Communication protocol Sepam address Speed Parity Link idle state Light On Light Off IEC 103 1 19200 Even v Advanced parameters gt gt gt Echo mode C Yes rE LAN port Sepam address Speed Parity Configuration of the physical layer of the S LAN port on an ACE969FO SEPED305002EN 03 2011 Configuring the communication interfaces Configuration of the S LAN port Physical layer The configuration parameters will vary depending on the communication interface selected ACE969TP or ACE969FO ACE969TP 2 wire RS 485 S LAN port The configuration parameters for the physical layer of the S LAN port on the ACE969TP m Sepam address m Transmission speed m Parity check type Parameters Authorized values Default value Sepam address 010 254 1 Speed 4800 9600 19200 or 19200 bps 38400 bps Parity No parity Even or Odd Even ACE969FO Fiber optic S LAN port The configuration parameters for the physical layer of the S LAN port on the ACE969FO 2 are m Sepam address m Transmission speed m Parity check type m Linkidle state Light On or Light Off m Echo mode Yes or No Echo mode m
48. link can be established with the Command ASDU The value of the command is coded in the DCI Double Command Information byte the authorized values are OFF 1 and ON 2 ASDU 20 Bytes Description 1 20 ASDU number 2 81h Structure gualifier 3 20 COT 20 general command 4 o ASDU common address Sepam address 5 FUN FUN function number 6 INF INF information number 7 DCI DCI Double Command Information 1 OFF 2 ON 8 RII RII Return Information Identifier Electric Schneider 29 IEC 60870 5 103 Appendix 2 File transfer communication General Presentation Sepam records information in the form of files produced by the following functions m Disturbance records Tripping contexts for Sepam series 60 and Sepam series 80 only These files can be retrieved using a file transfer procedure based on private ASDUs 254 and 255 Types of file to be transferred Definitions The files that can be transferred from Sepam to the supervisor are m 1 DR Disturbance Records directory file which contains the information required for transferring disturbance record files saved in Sepam m 1 TR Tripping Records directory file which contains the information required for transferring Tripping context files saved in Sepam m Disturbance record files which contain data saved in Sepam on events via the Disturbance recording function m Tripping context files which contain data saved by Sepam on tripping
49. m identification ASDU 5 ASDU 5 is generated by Sepam in response to initialization commands sent by the master m Reset CU Communication Unit m Reset FCB Frame Count Bit IEC 60870 5 103 communication is only operational after initialization by the master station In response to this initialization request Sepam generates two successive ASDU 5 type messages ASDU 5 in response to Reset CU First ASDU 5 message COT 4 Reset CU and INF Second ASDU 5 message 5 Start restart and INF 4 ASDU 5 in response to Reset FCB First ASDU 5 message 3 Reset FCB and INF 2 Second ASDU 5 message 5 Start restart and 4 Once communication has been established if the master sends a new initialization reguest only the first ASDU 5 message is generated ASDU 5 Bytes Description 1 5 ASDU number 2 81h Structure gualifier 3 COT COT 3 4075 4 o ASDU common address Sepam address 5 FUN FUN function number 6 INF INF information number 2 4 7 2 Compatibility level 8 5 level 2 Sepam does not support IEC 60870 5 olf E 103 generic services 10 ss 11 S Manufacturer identification 8 ASCII characters 12 mm SE SEPAM 13 p 14 15 M 16 G Application software identification 4 ASCII 17 4 mm characters 18 o For example G40 for Sepam series 40 mr Generator application
50. munication SEPED305002EN 03 2011 DE80245 Appendix 2 File transfer Frame sequences exchanged in order to read a Example 1 Complete read operation with no errors Control system Protection equipment Application IEC103 link IEC103 link Application layer layer layer layer Start reading SEND Open file ASDU 254 Open request FUN 105 CONFIRM Scan class 1 REQUEST data CLASS 1 RESPOND ASDU 255 Open FUN 105 response Read first block SEND ASDU 254 Read Block 0 reg FUN 101 CONFIRM Scan class 1 REQUEST data CLASS 1 RESPOND Read Block ASIN 729 response Read block SEND Read Block 1 reg Scan class 1 data ASDU 254 FUN 101 CONFIRM REQUEST CLASS 1 Read Block 1 FUN 101 response Read last block SEND Read Block N Scan class 1 REQUEST data CLASS 1 RESPOND Read Block ASDU 255 response 101 last block 7 SEND Close file ASDU 254 Close request FUN 106 Scan class 1 REQUEST data CLASS 1 RESPOND ASDU 255 Close FUN 105 response End of file reading Schneider Electric 35 IEC 60870 5 103 communication 36 Schneider DE80246 DE80247 Appendix 2 File transfer Frame sequences exchanged in order to read a file Example 2 Read operation interrupted on error Read Block negative response Control system Protection equipment Application IEC103 link IEC103 link Application laye
51. nput 2 Auxiliary input 3 Auxiliary input 4 8 3 3 3 Supervision indications in monitoring direction INF VI lt 32 gt lt 33 gt lt 35 gt lt 36 gt lt 37 gt lt 38 gt lt 39 gt lt 46 gt lt 47 gt Semantics Measurand supervision Measurand supervision V Phase sequence supervision Trip circuit supervision gt gt back up operation VT fuse failure Teleprotection disturbed Group warning Group alarm 8 3 3 4 Earth fault indications in monitoring direction INF lt 48 gt lt 49 gt lt 50 gt lt 51 gt lt 52 gt Semantics Earth fault L1 Earth fault L2 Earth fault L3 Earth fault forward i e line Earth fault reverse i e busbar Electric Schneider IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam communication profile 8 3 3 5 Fault indications in monitoring direction INF Semantics lt 64 gt Start pick up L1 65 Start pick up L2 66 Start pick up L3 67 Start pick up N lt 68 gt General trip lt 69 gt Trip L1 lt 70 gt Trip L2 lt 71 gt Trip L3 72 Trip I gt gt back up operation 73 Fault location X in ohms 74 Fault forward line 75 Fault reverse busbar 76 Teleprotection signal transmitted 77 Teleprotection signal received 78 Zone 1 lt 79 gt Zone2 lt 80 gt Zone lt 81 gt Zone4 lt 82 gt Zone5 lt 83 gt Zone
52. odule 5025 Synchro check module 084272004 120 SFT2841 Sepam series 80 hardware configuration Communication configuration Communication interface ACE 969TP r S L N port Communication protocol IEC 103 address 1 Speed 19200 v Bds Parity Even v Advanced parameters gt gt gt rE LAN port Sepam address 1 Speed 38400 v Parity Odd m Configuration of the physical layer of the E LAN port on an ACE969TP Schneider Configuring the communication interfaces Presentation The Sepam communication interfaces must be configured using SFT2841 software The IEC 60870 5 103 protocol is available with the ACE969TP 2 or ACE969FO 2 communication interfaces Several parameter categories have to be configured once the interface has been selected m The configuration parameters for the physical layer of the E LAN port m The configuration parameters for the physical layer of the S LAN port m The configuration parameters for functions specific to the IEC 60870 5 103 protocol advanced S LAN port parameters Access to configuration parameters These parameters can be accessed from the Communication configuration window in the SFT2841 software To access this window m Display the Sepam configuration screen in SFT2841 This screen will vary according to the type of Sepam used m Select the Communication option m Click E the Communication configuration win
53. of command Close Open capacitor step 1 1 21 106 20 21 Ack of command Close Open capacitor step 2 L 1 21 107 20 21 Ack of command Close Open capacitor step 3 1 21 108 20 21 Ack of command Close Open capacitor step 4 L 12 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Monitoring direction ASDU FUN INF COT GI Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 22 Logic equations 1 22 1 1 9 m Vi 1 22 2 1 9 m V2 1 22 3 1 9 m V3 1 22 4 1 9 m V4 E 1 22 5 1 9 m V5 1 22 6 1 9 m 1 22 7 1 9 m V7 1 22 8 1 9 m V8 1 22 9 1 9 m 9 1 22 10 1 9 m V10 1 22 11 11 9 m V11 1 22 12 19 m V12 1 22 13 1 9 m V13 1 22 14 1 9 V14 1 22 15 1 9 m 15 1 22 16 1 9 m V16 1 22 17 1 9 m V17 1 22 18 1 9 m V18 1 22 19 1 9 m V19 1 22 20 1 9 m V20 1 22 21 11 9 m V FLAGREC 1 22 22 1 9 m V TRIPCB 1 22 2 1 9 m V_CLOSECB 1 22 24 1 9 m V INHIBCLOSE 1 22 25 1 9 m V RESET 1 22 26 1 9 m V CLEAR 1 22 27 1 9 m V INHIBIT RESET LOCAL 1 22 28 1 9 m V SH
54. performed only after reading this entire set of instrucions and checking the technical characteristics of the device m NEVER work alone m Turn off all power supplying this equipement before working on or inside it Consider all sources of power including the possibility of backfeeding m Always use a properly rated voltage sensing device to confirm that all power is off m Startby connecting the device to the protective earth and to the functional earth m Screw tight all terminals even those not in use Failure to follow these instructions will result in death or serious injury 0223228822227 ACE969TP 2 communication interface SFT2841 Sepam series 80 Connection window Se 9 Biagnosi Input output and LED status Remote indication status Sepam diagnosis IEC 103 TP Protocol m Sepam general characteristics Sepam 00340002 Application version v0202 Base version voo UMI version status Major fault Partial fault Substation 80 Parameter setting __ Remote controls enabled 15022005 1616 WR Connected SFT2841 Sepam series 80 diagnosis screen Schneider Commissioning and diagnosis Installation and operating instructions for Sepam The communication interfaces must be installed and connected in accordance with the instructions in each Sepam user s and operation manual m Sepam series 20 us
55. r layer layer layer SEND ASDU 254 FUN 105 Start reading Open file Open request CONFIRM Scan class 1 REQUEST data CLASS 1 RESPOND ASDU 255 nz FUN 105 p SEND noad a ASDU 254 ead Block i reg FUN 101 CONFIRM Scan class 1 REOUEST data CLASS 1 Read RESPOND ASDU 255 Block i odis 103 negative Termination of reading response on error If an error occurs on a Read Block request Sepam returns a negative Read Block response The open file is automatically closed by Sepam Example 3 Read operation interrupted on Sepam abort spontaneous Close response Control system Protection equipment Application IEC103 link IEC103 link Application layer layer layer layer SEND Read block Read Block i req 1800 a 5 Delay 60 seconds Read block Read Block i 1 req SEND ASDU 254 FUN 101 REQUEST CLASS 1 CONFIRM Scan class 1 data RESPOND Spontaneaous ASDU 255 Close FUN 103 response Termination of reading on abort If more than 60 seconds elapses between two Read Block requests or between the last Read Block request and the Close request Sepam automatically closes the file A spontaneous Close response is generated by Sepam status file closed on detection of inactivity SEPED305002EN 03 2011 DE80335 IEC 60870 5 103 communication Directory file File 1 descriptor File 2 descriptor File x descriptor File n descriptor
56. rd function 1 160 16 1 9 12 Auto recloser active Recloser on L L 20 21 1 160 19 1 12 20 LED reset Sepam reset after m 21 fault 1 160 20 19 11 m Monitoring direction Monitoring L L blocked direction blocked 1 160 23 1 9 12 m Characteristic 1 Setting group A in L L 20 21 service 1 160 24 1 9 12 Characteristic 2 Setting group B in 20 21 service 1 160 32 1 9 m Measurand supervision I Phase CT fault 1 160 33 1 9 m Measurand supervision V Phase VT fault 1 160 35 1 9 m Phase sequence Main phase supervision reverse rotation 1 160 36 1 9 m Trip circuit supervision Matching fault m Trip Circuit Supervision 2 160 68 1 General trip Trip L L 2 160 85 1 Breaker failure Protection 50BF 2 160 90 1 gt Protection 50 51 m uniti m L unit 1 group A 2 160 91 1 Trip gt gt Protection 50 51 m unit2 m 2 group 2 160 92 1 Trip IN gt Protection 50N m uniti m 51N unit 1 group A 2 160 93 1 Trip IN gt gt Protection 50N m unit2 m L L 51N unit 2 group A 1 160 128 1 CB on by Auto recloser Recloser reclosing L successful SEPED305002EN 03 2011 Scbneider d Electric IEC 60870 5 103 communication IEC 60870 5 103 protocol Sepam data table Monitoring direction
57. s incorrect Diagnosis using SFT2841 software Sepam diagnosis screen When connected to Sepam the SFT2841 software informs the operator of the general Sepam status and of the Sepam communication status in particular All Sepam status information appears on the Sepam diagnosis screen Sepam communication diagnosis The operator is provided with the following information to assist with identifying and resolving communication problems m Name of the protocol configured m IEC 60870 5 103 interface version number m Number of frames received m Number of mistaken frames received These two counters are reset to zero if m The maximum value 65535 is reached m The Sepam auxiliary power supply is lost m The communication parameters are modified SEPED305002EN 03 2011 IEC 60870 5 103 communication Symptoms 969 2 LEDs On LED off SFT2841 diagnosis Protocol 2222 and or Version 2 Commissioning and diagnosis Troubleshooting assistance The following diagnosis information indicates whether Sepam and a supervisor are communicating correctly using the IEC 60870 5 103 protocol m Indicator LEDs on the front panel of the ACE969 2 Green on LED on Red key LED off S LAN Rx and Tx LEDs flashing m Sepam diagnosis screen oO of the protocol configured IEC 60870 5 103 IEC 60870 5 103 interface version number displayed Number of frames received increasing at r
58. s not exist 5 Open error response file already open 6 Read Block negative response and Close error response file identifier incorrect 16 Read Block negative response and Close error response file not open 17 Spontaneous Close response file closed on detection of inactivity 19 Close error response file corrupted 20 Read Block negative response block number incorrect SEPED305002EN 03 2011 IEC 60870 5 103 communication SEPED305002EN 03 2011 Appendix 2 File transfer ASDU coding Presentation ASDU 254 and 255 are used to perform the 3 steps necessary for reading a file m Open the file m Read the data blocks m Close the file Coding of the request from the supervisor ASDU 254 and coding of the response from Sepam ASDU 255 is given for each step Opening a file Open request Field Size Description bytes 254 1 ASDU number 105 1 FUN function number x 1 Request number selected arbitrarily by the supervisor n Byte 1 Length of the file name to be opened Name of the file to be opened 3 Byte Open response Field Size Description bytes 255 1 ASDU number 105 1 FUN function number x 1 Number of the corresponding Open reg Status 1 Execution report Least significant 4 File identifier 7 This identifier must be used in Read Block and Close zu requests Most significant Least significant 4 File size in bytes value on 32 bits
59. ust be activated when the Sepam is connected to an optical ring communication network Parameters Authorized values Default value Sepam address 0 to 254 1 Speed 4800 9600 19200 or 19200 bps 38400 bps Parity No parity Even or Odd Even Link idle state Light Off or Light Off Light On Echo mode Yes optical ring or No No optical star Configuration tips m The Sepam address MUST be assigned before Sepam is connected to the S LAN communication network m You are also strongly advised to set the other physical layer configuration parameters before connecting to the communication network m Modifying the configuration parameters during normal operation will not disturb Sepam but will reset the S LAN communication port Schneider 21 PE80015 IEC 60870 5 103 communication IEC 103 Protocol parameters Cyclic ASDU period 10 Inactivity timer 0 Time synchronization period 0 Blocking of monitoring direction r States and indications 20 Sepam supervision 21 Switchgear and network 22 Logic eguations 31 Logic inputs MES 1 32 Logic inputs MES 2 33 Logic inputs MES 3 41 Logipam group 1 42 Logipam group 2 43 Logipam group 3 r Measurements 10 Temperature measurements 11 Additional measurements 1 12 Additional measurements 2 Cancel mn No Protections 100 Overcurrent protections 101 Directional current protectior 102 Volt
60. utral voltage V 3 12 Residual voltage V 0 MEA13 Positive sequence voltage V d u MEA14 Negative sequence voltage V i MEA15 Frequency MEA16 Negative sequence unbalance 18 Schneider SEPED305002EN 03 2011 IEC 60870 5 103 IEC 60870 5 103 protocol communication Sepam data table Control direction ASDU FUN INF COT G Sepam semantic Sepam series 20 Sepam Sepam Sepam B2X Other series 40 series 60 series 80 255 System functions 7 255 0 9 Initiation of general interrogation L L 6 255 0 8 Time synchronization L 160 General commands 20 160 16 20 Enable recloser ON 20 Disable recloser OFF 20 160 19 120 Sepam reset ON L L L L L 20 160 23 20 Switching to setting group A ON 20 160 24 20 Switching to setting group ON 20 Sepam monitoring 20 20 14 20 S LAN communication monitoring re activation ON m S LAN communication monitoring inhibition OFF 21 Switchgear and network commands 20 21 1 20 Closing ON Trip open OFF 20 21 102 20 Priority group shutdown ON L L Cancel priority group shutdown OFF 20 21 103 20 Enable synchro check ON L Disable synchro check OFF 20 21 104 20 Enable voltage check ON Disable voltage check OFF 20 21 105 20 Close capacitor step 1 ON Open capacitor step 1 OFF
61. ytes Low byte 2 Size in bytes n of the CFG configuration data zone High byte 16 bit value n Configuration parameters CFG zone CFG file ASCII format x Samples values DAT zone DAT file binary format Schneider 37 Electric IEC 60870 5 103 communication 38 Schneider ARON Appendix 2 File transfer Use of files by the supervisor Tripping context files TR yyyy mm dd hh mn sssss The tripping context files are stored in Sepam in the directory TR The name of each file gives the date and time of its production It is coded yyyy mm dd hh mn sssss A tripping context file contains a set of measurements recorded by Sepam when protection function trips It consists of two parts m Date of the context coded on 8 bytes m List of measurements with each measurement coded on 32 bits 4 bytes Structure of a Sepam tripping context file Size Description bytes Date 8 Context date Measurement 1 4 List of 44 measurements Each measurement is a 32 bit numeric value coded on 4 bytes from the most significant to the least significant Measurement 44 4 The tripping context date is coded on 8 bytes 7 6 5 4 3 2 1 Reserved Reserved value always 0 Year Year from O to 99 0 0 0 0 Month Month from 1 to 12 0 0 0 Day Day from 1 to 31 0 0 0 Hours Hours from 0 to 24 0 0 Minutes Minutes from 0 to 59 Milliseconds most significant Milliseconds
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