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Janitza UMG 806 Modbus register map

Energy analyzer

  • Official
  • 674 registers
  • Revision 3 · 2026-11-10

Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

Download .mbmap.json Raw JSON View on GitHub Suggest a correction Report a problem

Communication

Protocol
Modbus TCP and RTUdefault
Unit ID
1default
TCP port
502default
Serial
9600 8E1 · 9600 baud, 8 data bits, even parity, 1 stop bit defaults
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
0-based

Connection values are defaults: the device may be configured differently.

Map

Registers
674 holding registers
Revision
3 · 2026-11-10
Firmware
2.026
Added
()
File
maps/janitza/umg-806.mbmap.json · 92 KB · history
SHA-256
03b8deef6cb900fd9702d9a6c1e37e11790eb10d0bff012ca342afe7bdc66642
Manufacturer
janitza.com

Sources and notes

  • UMG 806 Modbus address list · version Firmware 2.026 and higher, 05/2022, Doc. no. 2.064.008.1.g
    address list: frequently required readings, date and time, harmonics, measured values, settings

Source: Janitza electronics, "UMG 806 Modbus address list", firmware 2.026 and higher, 05/2022, Doc. no. 2.064.008.1.g

  • Addresses are the protocol addresses of the address list; the list does not state the byte order, big-endian is assumed.
  • Names follow the address list; the bit layouts of the status and alarm registers are in the manual.
  • The list gives 19293 for the averaged PT100 value right after the float at 19292, so one of these two addresses may be a typo in the document.
AreaAddressNameTypeAccessUnitScaleDescription
HR 6 int16 RW Variable _DAY
HR 7 int16 RW Variable _MONTH; 0=Jan,..11=Dec
HR 8 int16 RW Variable _YEAR
HR 9 int16 RW h Variable _HOUR
HR 10 int16 RW min Variable _MIN
HR 11 int16 RW s Variable _SEC
HR 12 int16 R Variable _WEEKDAY; 0=Sun,..6=Sat
HR 13 float32 ABCD R % Variable _FFT_UL1[0]
HR 15 float32 ABCD R % Variable _FFT_UL1[1]
HR 17 float32 ABCD R % Variable _FFT_UL1[2]
HR 19 float32 ABCD R % Variable _FFT_UL1[3]
HR 21 float32 ABCD R % Variable _FFT_UL1[4]
HR 23 float32 ABCD R % Variable _FFT_UL1[5]
HR 25 float32 ABCD R % Variable _FFT_UL1[6]
HR 27 float32 ABCD R % Variable _FFT_UL1[7]
HR 29 float32 ABCD R % Variable _FFT_UL1[8]
HR 31 float32 ABCD R % Variable _FFT_UL1[9]
HR 33 float32 ABCD R % Variable _FFT_UL1[10]
HR 35 float32 ABCD R % Variable _FFT_UL1[11]
HR 37 float32 ABCD R % Variable _FFT_UL1[12]
HR 39 float32 ABCD R % Variable _FFT_UL1[13]
HR 41 float32 ABCD R % Variable _FFT_UL1[14]
HR 43 float32 ABCD R % Variable _FFT_UL1[15]
HR 45 float32 ABCD R % Variable _FFT_UL1[16]
HR 47 float32 ABCD R % Variable _FFT_UL1[17]
HR 49 float32 ABCD R % Variable _FFT_UL1[18]
HR 51 float32 ABCD R % Variable _FFT_UL1[19]
HR 53 float32 ABCD R % Variable _FFT_UL1[20]
HR 55 float32 ABCD R % Variable _FFT_UL1[21]
HR 57 float32 ABCD R % Variable _FFT_UL1[22]
HR 59 float32 ABCD R % Variable _FFT_UL1[23]
HR 61 float32 ABCD R % Variable _FFT_UL1[24]
HR 63 float32 ABCD R % Variable _FFT_UL1[25]
HR 65 float32 ABCD R % Variable _FFT_UL1[26]
HR 67 float32 ABCD R % Variable _FFT_UL1[27]
HR 69 float32 ABCD R % Variable _FFT_UL1[28]
HR 71 float32 ABCD R % Variable _FFT_UL1[29]
HR 73 float32 ABCD R % Variable _FFT_UL2[0]
HR 75 float32 ABCD R % Variable _FFT_UL2[1]
HR 77 float32 ABCD R % Variable _FFT_UL2[2]
HR 79 float32 ABCD R % Variable _FFT_UL2[3]
HR 81 float32 ABCD R % Variable _FFT_UL2[4]
HR 83 float32 ABCD R % Variable _FFT_UL2[5]
HR 85 float32 ABCD R % Variable _FFT_UL2[6]
HR 87 float32 ABCD R % Variable _FFT_UL2[7]
HR 89 float32 ABCD R % Variable _FFT_UL2[8]
HR 91 float32 ABCD R % Variable _FFT_UL2[9]
HR 93 float32 ABCD R % Variable _FFT_UL2[10]
HR 95 float32 ABCD R % Variable _FFT_UL2[11]
HR 97 float32 ABCD R % Variable _FFT_UL2[12]
HR 99 float32 ABCD R % Variable _FFT_UL2[13]
HR 101 float32 ABCD R % Variable _FFT_UL2[14]
HR 103 float32 ABCD R % Variable _FFT_UL2[15]
HR 105 float32 ABCD R % Variable _FFT_UL2[16]
HR 107 float32 ABCD R % Variable _FFT_UL2[17]
HR 109 float32 ABCD R % Variable _FFT_UL2[18]
HR 111 float32 ABCD R % Variable _FFT_UL2[19]
HR 113 float32 ABCD R % Variable _FFT_UL2[20]
HR 115 float32 ABCD R % Variable _FFT_UL2[21]
HR 117 float32 ABCD R % Variable _FFT_UL2[22]
HR 119 float32 ABCD R % Variable _FFT_UL2[23]
HR 121 float32 ABCD R % Variable _FFT_UL2[24]
HR 123 float32 ABCD R % Variable _FFT_UL2[25]
HR 125 float32 ABCD R % Variable _FFT_UL2[26]
HR 127 float32 ABCD R % Variable _FFT_UL2[27]
HR 129 float32 ABCD R % Variable _FFT_UL2[28]
HR 131 float32 ABCD R % Variable _FFT_UL2[29]
HR 133 float32 ABCD R % Variable _FFT_UL3[0]
HR 135 float32 ABCD R % Variable _FFT_UL3[1]
HR 137 float32 ABCD R % Variable _FFT_UL3[2]
HR 139 float32 ABCD R % Variable _FFT_UL3[3]
HR 141 float32 ABCD R % Variable _FFT_UL3[4]
HR 143 float32 ABCD R % Variable _FFT_UL3[5]
HR 145 float32 ABCD R % Variable _FFT_UL3[6]
HR 147 float32 ABCD R % Variable _FFT_UL3[7]
HR 149 float32 ABCD R % Variable _FFT_UL3[8]
HR 151 float32 ABCD R % Variable _FFT_UL3[9]
HR 153 float32 ABCD R % Variable _FFT_UL3[10]
HR 155 float32 ABCD R % Variable _FFT_UL3[11]
HR 157 float32 ABCD R % Variable _FFT_UL3[12]
HR 159 float32 ABCD R % Variable _FFT_UL3[13]
HR 161 float32 ABCD R % Variable _FFT_UL3[14]
HR 163 float32 ABCD R % Variable _FFT_UL3[15]
HR 165 float32 ABCD R % Variable _FFT_UL3[16]
HR 167 float32 ABCD R % Variable _FFT_UL3[17]
HR 169 float32 ABCD R % Variable _FFT_UL3[18]
HR 171 float32 ABCD R % Variable _FFT_UL3[19]
HR 173 float32 ABCD R % Variable _FFT_UL3[20]
HR 175 float32 ABCD R % Variable _FFT_UL3[21]
HR 177 float32 ABCD R % Variable _FFT_UL3[22]
HR 179 float32 ABCD R % Variable _FFT_UL3[23]
HR 181 float32 ABCD R % Variable _FFT_UL3[24]
HR 183 float32 ABCD R % Variable _FFT_UL3[25]
HR 185 float32 ABCD R % Variable _FFT_UL3[26]
HR 187 float32 ABCD R % Variable _FFT_UL3[27]
HR 189 float32 ABCD R % Variable _FFT_UL3[28]
HR 191 float32 ABCD R % Variable _FFT_UL3[29]
HR 193 float32 ABCD R % Variable _FFT_IL1[0]
HR 195 float32 ABCD R % Variable _FFT_IL1[1]
HR 197 float32 ABCD R % Variable _FFT_IL1[2]

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