Janitza UMG96RM-EL power meter

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

point	address (0-based)	type	scale	unit
Current transformer I1, primary	10	F32BE	1	A
Current transformer I1, sec	12	F32BE	1	A
Voltage transformer V1, primary	14	F32BE	1	V
Voltage transformer V1, sec.	16	F32BE	1	V
Current transformer I2, primary	18	F32BE	1	A
Current transformer I2, sec.	20	F32BE	1	A
Voltage transformer V2, primary	22	F32BE	1	V
Voltage transformer V2, sec.	24	F32BE	1	V
Current transformer I3, primary	26	F32BE	1	A
Current transformer I3, sec.	28	F32BE	1	A
Voltage transformer V3, primary	30	F32BE	1	V
Voltage transformer V3, sec.	32	F32BE	1	V
Frequency determination	34	I16	1	Hz
Display contrast	35	I16	1
Background lighting	36	I16	1
Indication profile	37	I16	1
Indication rotation profile	38	I16	1
Rotation time	39	I16	1	Sec.
Averaging time, I	40	I16	1
Averaging time, P	41	I16	1
Averaging time, U	42	I16	1
Nominal current TDD	43	F32BE	1	A
Threshold, current measurement L1..L3	45	I32BE	1	mA
Password	50	I16	1
Results of the Comparator group 1	107	I16	1
Comparator 1A, limit	108	F32BE	1
Comparator 1A, Address of measurement value	110	I16	1
Comparator 1A, min. on time	111	I16	1	Sec.
Comparator 1A, lead time	112	I16	1	Sec.
Comparator 1A, operator	113	I16	1
Comparator 1B, limit	114	F32BE	1
Comparator 1B, Address of measurement value	116	I16	1
Comparator 1B, min. on time	117	I16	1	Sec.
Comparator 1B, lead time	118	I16	1	Sec.
Comparator 1B, operator	119	I16	1
Comparator 1C, limit	120	F32BE	1
Comparator 1C, Address of measurement value	122	I16	1
Comparator 1C, min. on time	123	I16	1	Sec.
Comparator 1C, lead time	124	I16	1	Sec.
Comparator 1C, operator	125	I16	1
Results of the Comparator group 2	126	I16	1
Comparator 2A, limit	127	F32BE	1
Comparator 2A, Address of measurement value	129	I16	1
Comparator 2A, min. on time	130	I16	1	Sec.
Comparator 2A, lead time	131	I16	1	Sec.
Vergleicher 2A, Operator	132	I16	1
Comparator 2B, limit	133	F32BE	1
Comparator 2B, Address of measurement value	135	I16	1
Comparator 2B, min. on time	136	I16	1	Sec.
Comparator 2B, lead time	137	I16	1	Sec.
Comparator 2B, operator	138	I16	1
Comparator 2C, limit	139	F32BE	1
Comparator 2C, Address of measurement value	141	I16	1
Comparator 2C, min. on time	142	I16	1	Sec.
Comparator 2C, lead time	143	I16	1	Sec.
Comparator 2C, operator	144	I16	1
Connection configuration, I L1	500	I16	1
Connection configuration, I L2	501	I16	1
Connection configuration, I L3	502	I16	1
Connection configuration, U L1	503	I16	1
Connection configuration, U L2	504	I16	1
Anschlußkonfiguration, U L3	505	I16	1
Delete min. and maximum values	506	I16	1
Delete energy values	507	I16	1
Write in EEPROM	508	I16	1
Connection diagram voltage	509	I16	1
Connection diagram current	510	I16	1
Relevant voltage, display of THD and FFT	511	I16	1
Overrange	600	U32BE	1
Comparator 1 output A	610	I16	1
Comparator 1 output B	611	I16	1
Comparator 1 output C	612	I16	1
Comparator 2 output A	613	I16	1
Comparator 2 output B	614	I16	1
Comparator 2 output C	615	I16	1
Linkage result of comparator group 1	616	I16	1
Linkage result of comparator group 2	617	I16	1
Rate, real energy	618	I16	1
Rate, real energy consumed	619	I16	1
Rate, real energy delivered	620	I16	1
Rate, reactive energy	621	I16	1
Rate, reactive energy inductive	622	I16	1
Rate, reactive energy capacitive	623	I16	1
Rate, apparent energy	624	I16	1
Software release	750	I16	1
Serial number	754	I32BE	1
Production number	756	I32BE	1
Measured frequency	800	F32BE	1	Hz
Voltage, zero sequence	802	F32BE	1	V
Voltage, negative sequence	804	F32BE	1	V
Voltage, positive sequence	806	F32BE	1	V
Voltage U1 L1-N	808	F32BE	1	V
Voltage U2 L2-N	810	F32BE	1	V
Voltage U3 L3-N	812	F32BE	1	V
Voltage U1 L1-L2	814	F32BE	1	V
Voltage U2 L2-L3	816	F32BE	1	V
Voltage U3 L3-L1	818	F32BE	1	V
Fund. power factor, CosPhi; ULN, IL1	820	F32BE	1
Fund. power factor, CosPhi; ULN, IL2	822	F32BE	1
Fund. power factor, CosPhi; ULN, IL3	824	F32BE	1
Fund. Sum; CosPhisum3=P0sum3/Ssum3	826	F32BE	1
Power factor; UL1N, IL1	828	F32BE	1
Power factor; UL2N, IL2	830	F32BE	1
Power factor; UL3N, IL3	832	F32BE	1
Sum; Power factor sum3=Psum3/Ssum3	834	F32BE	1
THD, U L1N, bezogen auf U0 L1	836	F32BE	1	%
THD, U L2N, bezogen auf U0 L2	838	F32BE	1	%
THD, U L3N, bezogen auf U0 L3	840	F32BE	1	%
THD, U L1L2, bezogen auf U0 L1-L2	842	F32BE	1	%
THD, U L2L3, bezogen auf U0 L2-L3	844	F32BE	1	%
THD, U L3L1, bezogen auf U0 L3-L1	846	F32BE	1	%
Voltage, real part U1 L1-N	848	F32BE	1	V
Voltage, real part U2 L2-N	850	F32BE	1	V
Voltage, real part U3 L3-N	852	F32BE	1	V
Voltage, imaginary part U L1-N	854	F32BE	1	V
Voltage, imaginary part U L2-N	856	F32BE	1	V
Voltage, imaginary part U L3-N	858	F32BE	1	V
Current I1 L1	860	F32BE	1	A
Current I2 L2	862	F32BE	1	A
Current I3 L3	864	F32BE	1	A
Vector sum; IN=I1+I2+I3	866	F32BE	1	A
Real power P1 L1-N	868	F32BE	1	W
Real power P2 L2-N	870	F32BE	1	W
Real power P3 L3-N	872	F32BE	1	W
Sum; Psum3=P1+P2+P3	874	F32BE	1	W
Fund. reactive power Q1 L1-N	876	F32BE	1	var
Fund. reactive power Q2 L2-N	878	F32BE	1	var
Fund. reactive power Q3 L3-N	880	F32BE	1	var
Fund. Sum; Qsum3=Q1+Q2+Q3	882	F32BE	1	var
Apparent power S1 L1-N	884	F32BE	1	VA
Apparent power S2 L2-N	886	F32BE	1	VA
Apparent power S3 L3-N	888	F32BE	1	VA
Sum; Ssum3=S1+S2+S3	890	F32BE	1	VA
Fund. real power P01 L1-N	892	F32BE	1	W
Fund. real power P02 L2-N	894	F32BE	1	W
Fund. real power P03 L3-N	896	F32BE	1	W
Fund. Sum; P0sum3=P01+P02+P03	898	F32BE	1	W
Harmonic distortion power D1 L1-N	900	F32BE	1	var
Harmonic distortion power D2 L2-N	902	F32BE	1	var
Harmonic distortion power D3 L3-N	904	F32BE	1	var
Sum; Dsum3=D1+D2+D3	906	F32BE	1	var
THDI1 I1, bezogen auf I01	908	F32BE	1	%
THDI2 I2, bezogen auf I02	910	F32BE	1	%
THDI3 I3, bezogen auf I03	912	F32BE	1	%
TDDI1 I1, bezogen auf den Nenn-Laststrom	914	F32BE	1	%
TDDI2 I2, bezogen auf den Nenn-Laststrom	916	F32BE	1	%
TDDI3 I3, bezogen auf den Nenn-Laststrom	918	F32BE	1	%
Current, zero sequence	920	F32BE	1	A
Current, negative sequence	922	F32BE	1	A
Current, positive sequence	924	F32BE	1	A
Current, real part I L1	926	F32BE	1	A
Current, real part I L2	928	F32BE	1	A
Current, real part I L3	930	F32BE	1	A
Current, imaginary part I L1	932	F32BE	1	A
Current, imaginary part I L2	934	F32BE	1	A
Current, imaginary part I L3	936	F32BE	1	A
Rotation field; 1=right, 0=none, -1=left	938	F32BE	1
Frequency 200 ms	940	F32BE	1	Hz
Crest factor, U L1	5910	F32BE	1
Crest factor, U L2	5912	F32BE	1
Crest factor, U L3	5914	F32BE	1
Crest factor, I L1	5916	F32BE	1
Crest factor, I L2	5918	F32BE	1
Crest factor, I L3	5920	F32BE	1
Voltage L1-N	19000	F32BE	1	V
Voltage L2-N	19002	F32BE	1	V
Voltage L3-N	19004	F32BE	1	V
Voltage L1-L2	19006	F32BE	1	V
Voltage L2-L3	19008	F32BE	1	V
Voltage L1-L3	19010	F32BE	1	V
Current I L1	19012	F32BE	1	A
Current I L2	19014	F32BE	1	A
Current I L3	19016	F32BE	1	A
Vector sum; IN=I1+I2+I3	19018	F32BE	1	A
Real power P1 L1N	19020	F32BE	1	W
Real power P2 L2N	19022	F32BE	1	W
Real power P3 L3N	19024	F32BE	1	W
Sum; Psum3=P1+P2+P3	19026	F32BE	1	W
Apparent power S1 L1N	19028	F32BE	1	VA
Apparent power S2 L2N	19030	F32BE	1	VA
Apparent power S3 L3N	19032	F32BE	1	VA
Sum; Ssum3=S1+S2+S3	19034	F32BE	1	VA
Fund. reactive power Q1 L1N	19036	F32BE	1	var
Fund. reactive power Q2 L2N	19038	F32BE	1	var
Fund. reactive power Q3 L3N	19040	F32BE	1	var
Fund. Sum; Qsum3=Q1+Q2+Q3	19042	F32BE	1	var
CosPhi; UL1 IL1 (fundamental comp.)	19044	F32BE	1
CosPhi; UL2 IL2 (fundamental comp.)	19046	F32BE	1
CosPhi; UL3 IL3 (fundamental comp.)	19048	F32BE	1
Measured frequency	19050	F32BE	1	Hz
Rotation field; 1=right, 0=none, -1=left	19052	F32BE	1
Real energy L1	19054	F32BE	1	Wh
Real energy L2	19056	F32BE	1	Wh
Real energy L3	19058	F32BE	1	Wh
Real energy L1..L3	19060	F32BE	1	Wh
Real energy L1, consumed	19062	F32BE	1	Wh
Real energy L2, consumed	19064	F32BE	1	Wh
Real energy L3, consumed	19066	F32BE	1	Wh
Real energy L1..L3, consumed, rate 1	19068	F32BE	1	Wh
Real energy L1, delivered	19070	F32BE	1	Wh
Real energy L2, delivered	19072	F32BE	1	Wh
Real energy L3, delivered	19074	F32BE	1	Wh
Real energy L1..L3, delivered	19076	F32BE	1	Wh
Apparent energy L1	19078	F32BE	1	VAh
Apparent energy L2	19080	F32BE	1	VAh
Apparent energy L3	19082	F32BE	1	VAh
Apparent energy L1..L3	19084	F32BE	1	VAh
Reactive energy L1	19086	F32BE	1	varh
Reactive energy L2	19088	F32BE	1	varh
Reactive energy L3	19090	F32BE	1	varh
Reactive energy L1..L3	19092	F32BE	1	varh
Reactive energy ind. L1	19094	F32BE	1	varh
Reactive energy ind. L2	19096	F32BE	1	varh
Reactive energy ind. L3	19098	F32BE	1	varh
Reactive energy ind. L1..L3	19100	F32BE	1	varh
Reactive energy cap. L1	19102	F32BE	1	varh
Reactive energy cap. L2	19104	F32BE	1	varh
Reactive energy cap. L3	19106	F32BE	1	varh
Reactive energy cap. L1..L3	19108	F32BE	1	varh
Harmonic, THD U L1-N	19110	F32BE	1	%
Harmonic, THD U L2-N	19112	F32BE	1	%
Harmonic, THD U L3-N	19114	F32BE	1	%
Harmonic, THD I L1	19116	F32BE	1	%
Harmonic, THD I L2	19118	F32BE	1	%
Harmonic, THD I L3	19120	F32BE	1	%

link settings as documented (unverified): FC 03,04,06,16,23; Supports Big-Endian and Little-Endian byte sequences. If Little-Endian is required, add 32768 to the register address.

bench facts as documented (unverified)

broadcast	supported
protocol notes	Modbus register addresses are updated every 200ms. Measured values in short format do not take into account the set transformer ratio, whereas float or integer formats do.
doc revision	1.040.109.4.h

field reports — community-sourced, unverified (checked 2026-06-11)

When mapping registers to Ignition SCADA, users may receive 'bad' quality values due to addressing mismatches. Enabling zero-based addressing in Ignition's advanced settings is required to align with Janitza's 1-based register numbering, and word swapping may be needed for FLOAT data types. [source]
Firmware updates may occasionally introduce register mapping changes affecting SCADA integrations. [source]
When integrating with Siemens S7-1500 PLCs, users may need to swap the byte order in the receive buffer or configure the Modbus master to expect swapped bytes for FLOAT values. [source]
confirmed: Modbus Functions (Slave) supports 03, 04, 06, 16, 23 — confirmed by Janitza UMG 96RM-EL Modbus-address list and Formulary (Dok. Nr. 1.040.109.4.h)
confirmed: Supports Big-Endian and Little-Endian byte sequences. If Little-Endian is required, add 32768 to the register address — confirmed by Janitza UMG 96RM-EL Modbus-address list and Formulary (Dok. Nr. 1.040.109.4.h)
confirmed: Modbus register addresses are updated every 200ms — confirmed by Janitza UMG 96RM-EL Modbus-address list and Formulary (Dok. Nr. 1.040.109.4.h)
confirmed: Measured values in short format do not take into account the set transformer ratio, whereas float or integer formats do — confirmed by Janitza UMG 96RM-EL Modbus-address list and Formulary (Dok. Nr. 1.040.109.4.h)
confirmed: Register map summary (voltage_l1_n @ 19000, voltage_l2_n @ 19002, voltage_l3_n @ 19004, voltage_l1_l2 @ 19006, voltage_l2_l3 @ 19008, voltage_l1_l3 @ 19010, current_l1 @ 19012, current_l2 @ 19014, current_l3 @ 19016, current_vector_sum @ 19018, real_power_l1 @ 19020, real_power_l2 @ 19022, real_power_l3 @ 19024, real_power_sum @ 19026, apparent_power_l1 @ 19028, apparent_power_l2 @ 19030, apparent_power_l3 @ 19032, apparent_power_sum @ 19034, reactive_power_l1 @ 19036, reactive_power_l2 @ 19038, reactive_power_l3 @ 19040, reactive_power_sum @ 19042, cos_phi_l1 @ 19044, cos_phi_l2 @ 19046, cos_phi_l3 @ 19048, frequency @ 19050, real_energy_l1 @ 19054, real_energy_l2 @ 19056, real_energy_l3 @ 19058, real_energy_sum @ 19060, thd_u_l1 @ 19110, thd_u_l2 @ 19112, thd_u_l3 @ 19114, thd_i_l1 @ 19116, thd_i_l2 @ 19118, thd_i_l3 @ 19120) — confirmed by Janitza UMG 96RM-EL Modbus-address list and Formulary (Dok. Nr. 1.040.109.4.h)

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

Device not here? Upload its manual and get a checked map back. It's free.

Want it confirmed against your own device? Order hardware verification. If it doesn't check out, you don't pay.

Building on a lot of devices? License the library — machine-readable maps, the firmware matrix, and API access.