Siemens 7SR242 Duobias Technical Manual page 141

Contents
1. Introduction................................................................................................................ 5
2. Physical Connection.................................................................................................. 7
2.1 Introduction................................................................................................................................................ 7
2.2 USB Interface (COM2).............................................................................................................................. 8
2.3 RS485 Interface (COM1)........................................................................................................................... 8
2.4 Serial Fibre Optic Interface (COM3 & COM4).........................................................................................10
2.5 Optional Rear RS485 (COM3)................................................................................................................ 13
2.6 Optional Rear RS232 (COM3)................................................................................................................ 14
2.7 Optional Rear EN100 Ethernet Module (COM3)..................................................................................... 16
3. IEC 60870-5-103 Definitions................................................................................... 19
3.1 Introduction...............................................................................................................................................19
3.2 Cause of Transmission............................................................................................................................20
3.3 Application Service Data Unit (ASDU) Type........................................................................................... 21
3.4 Point List.................................................................................................................................................. 22
3.4.1 Event Function (FUN) & Information (INF) Numbers................................................................ 22
3.4.2 Measurands............................................................................................................................... 30
3.4.3 Disturbance Recorder Actual Channel (ACC) Numbers........................................................... 31
4. MODBUS Definitions............................................................................................... 33
4.1 Introduction...............................................................................................................................................33
4.2 MODBUS Register Data Types............................................................................................................... 34
4.2.1 FLOAT_IEEE_754..................................................................................................................... 34
4.2.2 FP_32BITS_3DP....................................................................................................................... 35
4.2.3 UINT32.......................................................................................................................................35
4.2.4 UINT16.......................................................................................................................................35
4.2.5 EVENT....................................................................................................................................... 36
4.2.6 EVENTCOUNT.......................................................................................................................... 37
4.2.7 TIME_METER............................................................................................................................37
4.2.8 STR32 & STR64....................................................................................................................... 37
4.2.9 BITSTRING................................................................................................................................37
4.3 Point List.................................................................................................................................................. 39
4.3.1 Coils (Read Write Binary values).............................................................................................. 39
4.3.2 Inputs (Read Only Binary values)............................................................................................. 40
4.3.3 Input Registers (Read Only Registers)..................................................................................... 47
4.3.4 Holding Registers (Read Write Registers)................................................................................ 49
5. DNP3 Definitions..................................................................................................... 53
5.1 Device Profile...........................................................................................................................................53
5.2 Implementation Table.............................................................................................................................. 56
5.3 Point List.................................................................................................................................................. 62
5.3.1 Binary Input Points.................................................................................................................... 62
5.3.2 Double Bit Input Points............................................................................................................. 69
5.3.3 Binary Output Status Points and Control Relay Output Blocks.................................................70
5.3.4 Counters.................................................................................................................................... 75
5.3.5 Analog Inputs.............................................................................................................................77
5.4 Additional Settings................................................................................................................................... 79
6. Not Applicable......................................................................................................... 81
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Chapter 4 - 7SR242 Duobias · Data Communications Definitions
Chapter 4 - Page 3 of 92