Siemens 7KT0310 - Communication; Protocol and Interface; Communication Parameters; Modbus Register Addresses

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SMART 7KT0310 Manual
Communication
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Protocol and interface
Protocol:ModbusRTU
Interface:IntegratedRS485interface
Communication parameters
Communicationaddress 1to255
Transmission mode Halfduplex
Data types FloatandInteger
Transmission distance 500mmaximum
Transmission Speed 300,600,1200,2400,4800,
9600,19200(inbps)
Parity None,Odd,Even
Stop bits 1 or 2
Response Time 100msMax&Independent,at
Baud rate
Connection diagram for communication
RS485-RS232
Converter
Master
Suggested
terminating resistor
(120 ohm,¼watt)
F2
F3 F4
F1
F2
F3 F4
F1
F2
F3 F4
F1
ContactsalesforPCbasedmonitoringsoftwareto
communicatewiththemeters.
Modbus register addresses list
Readable Parameters: [Length (Register): 2; Data Structure: Float]
Address Hex Address Parameter
30000 0x00 VoltageV1N
30002 0x02 VoltageV2N
30004 0x04 VoltageV3N
30006 0x06 AverageVoltageLN
30008 0x08 VoltageV12
30010 0x0A VoltageV23
30012 0x0C VoltageV31
30014 0x0E AverageVoltageLL
30016 0x10 CurrentI1
30018 0x12 CurrentI2
30020 0x14 CurrentI3
30022 0x16 AverageCurrent
30024 0x18 kW1
30026 0x1A kW2
30028 0x1C kW3
30030 0x1E kVA1
30032 0x20 kVA2
30034 0x22 kVA3
30036 0x24 kVAr1
Address Hex Address Parameter
30038 0x26 kVAr2
30040 0x28 kVAr3
30042 0x2A TotalKW
30044 0x2C Total KVA
30046 0x2E Total KVAr
30048 0x30 PF1
30050 0x32 PF2
30052 0x34 PF3
30054 0x36 AveragePF
30056 0x38 Frequency
30058 0x3A TotalnetkWh
30060 0x3C TotalnetkVAh
30062 0x3E TotalnetkVArh
30064 0x40 kWMaxActivePower
30066 0x42 kWMinActivePower
30068 0x44 kVArMaxReactivePower
30070 0x46 kVArMinReactivePower
30072 0x48 kVAMaxApparentPower
30084 0x54 kWh1(Imp)