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  3. PLA33RX

BMR PLA33RX Modbus register map

Three-phase power quality analyser with RS485 and Profibus

  • Official
  • 2,724 registers
  • Modbus RTU
  • Revision 3 · 2026-10-18

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 RTU
Unit ID
1default
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
2724 holding registers
Groups
30
Revision
3 · 2026-10-18
Firmware
from 1.1.3
Added
()
File
maps/bmr/pla33rx.mbmap.json · 402 KB · history
SHA-256
505ace6e7ad0339a689836a7cacbb17efa29891528371796af83f5ce80b3ed70
Manufacturer
bmr-trading.com

Sources and notes

  • PLA33RX Modbus registers · version 1.2

Source: BMR, "PLA33RX Modbus registers", file version 1.2, firmware 1.1.3 and newer

  • BMR PLA33RX, firmware 1.1.3 and newer. The device reads with FC03 and writes with FC16.
  • Addresses are written as in the manual, from 0. The manual does not list the RS485 defaults.
  • Energy counters are int64 in tenths of kWh or kvarh with the least significant register first, as the manual says.
  • Left out: the data flash files (read with FC23), the Profibus settings (whose addresses in the manual overlap the I/O settings), the alarm settings (the manual recommends the PMS software), the logging bitmaps, the energy counters split into single registers (37100-37195) and the output states at 36000-36003, which the manual gives at the same addresses as the inputs.
AreaAddressNameTypeAccessUnitScaleDescription
HR 30000 float32 ABCD R
HR 30002 float32 ABCD R
HR 30004 float32 ABCD R
HR 30006 float32 ABCD R
HR 30008 float32 ABCD R
HR 30010 float32 ABCD R
HR 30012 float32 ABCD R
HR 30014 float32 ABCD R
HR 30016 float32 ABCD R VA
HR 30018 float32 ABCD R VA
HR 30020 float32 ABCD R VA
HR 30022 float32 ABCD R VA
HR 30024 float32 ABCD R W
HR 30026 float32 ABCD R W
HR 30028 float32 ABCD R W
HR 30030 float32 ABCD R W
HR 30032 float32 ABCD R var
HR 30034 float32 ABCD R var
HR 30036 float32 ABCD R var
HR 30038 float32 ABCD R var
HR 30040 float32 ABCD R V
HR 30042 float32 ABCD R V
HR 30044 float32 ABCD R V
HR 30046 float32 ABCD R V
HR 30048 float32 ABCD R V
HR 30050 float32 ABCD R V
HR 30052 float32 ABCD R %
HR 30054 float32 ABCD R %
HR 30056 float32 ABCD R %
HR 30058 float32 ABCD R %
HR 30060 float32 ABCD R %
HR 30062 float32 ABCD R %
HR 30064 float32 ABCD R A
HR 30066 float32 ABCD R A
HR 30068 float32 ABCD R A
HR 30070 float32 ABCD R A I_Zero in the manual
HR 30072 float32 ABCD R %
HR 30074 float32 ABCD R %
HR 30076 float32 ABCD R %
HR 30078 float32 ABCD R Hz
HR 30080 float32 ABCD R V
HR 30082 float32 ABCD R V
HR 30084 float32 ABCD R V
HR 30086 float32 ABCD R V
HR 30088 float32 ABCD R V
HR 30090 float32 ABCD R V
HR 30092 float32 ABCD R V
HR 30094 float32 ABCD R V
HR 30096 float32 ABCD R V
HR 30098 float32 ABCD R V
HR 30100 float32 ABCD R V
HR 30102 float32 ABCD R V
HR 30104 float32 ABCD R %
HR 30110 float32 ABCD R %
HR 30116 float32 ABCD R %
HR 30122 float32 ABCD R %
HR 30128 float32 ABCD R
HR 30130 float32 ABCD R
HR 30132 float32 ABCD R
HR 30134 float32 ABCD R VA
HR 30136 float32 ABCD R VA
HR 30138 float32 ABCD R VA
HR 30140 float32 ABCD R °C
HR 30142 float32 ABCD R °
HR 30144 float32 ABCD R °
HR 30146 float32 ABCD R °
HR 30148 float32 ABCD R °
HR 30150 float32 ABCD R °
HR 30152 float32 ABCD R °
HR 30154 float32 ABCD R Hz
HR 30156 float32 ABCD R %
HR 30158 float32 ABCD R %
HR 30160 float32 ABCD R %
HR 30162 float32 ABCD R
HR 30164 float32 ABCD R
HR 30166 float32 ABCD R
HR 30168 float32 ABCD R
HR 30170 float32 ABCD R
HR 30172 float32 ABCD R
HR 30174 float32 ABCD R
HR 30176 float32 ABCD R
HR 30200 float32 ABCD R
HR 30202 float32 ABCD R
HR 30204 float32 ABCD R
HR 30206 float32 ABCD R
HR 30208 float32 ABCD R
HR 30210 float32 ABCD R
HR 30212 float32 ABCD R
HR 30214 float32 ABCD R
HR 30216 float32 ABCD R VA
HR 30218 float32 ABCD R VA
HR 30220 float32 ABCD R VA
HR 30222 float32 ABCD R VA
HR 30224 float32 ABCD R W
HR 30226 float32 ABCD R W
HR 30228 float32 ABCD R W
HR 30230 float32 ABCD R W
HR 30232 float32 ABCD R var
HR 30234 float32 ABCD R var
HR 30236 float32 ABCD R var

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