EIG Shark 200 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
Meter Name	0	U16	1
Meter Serial Number	8	U16	1
Meter Type	16	U16	1
Firmware Version	17	U16	1
Map Version	19	U16	1
Meter Configuration	20	U16	1
ASIC Version	21	U16	1
Boot Firmware Version	22	U16	1
Option Slot 1 Usage	24	U16	1
Option Slot 2 Usage	25	U16	1
Meter Type Name	26	U16	1
Volts A-N	278	U16	1	volts
Volts B-N	279	U16	1	volts
Volts C-N	280	U16	1	volts
Volts A-B	281	U16	1	volts
Volts B-C	282	U16	1	volts
Volts C-A	283	U16	1	volts
Amps A	284	U16	1	amps
Amps B	285	U16	1	amps
Amps C	286	U16	1	amps
Neutral Current	287	U16	1	amps
Watts, 3-Ph total	288	I16	1	watts
VARs, 3-Ph total	289	I16	1	VARs
VAs, 3-Ph total	290	U16	1	VAs
Power Factor, 3-Ph total	291	I16	0.001
Frequency	292	U16	0.01	Hz
Watts, Phase A	293	I16	1	watts
Watts, Phase B	294	I16	1	watts
Watts, Phase C	295	I16	1	watts
VARs, Phase A	296	I16	1	VARs
VARs, Phase B	297	I16	1	VARs
VARs, Phase C	298	I16	1	VARs
VAs, Phase A	299	U16	1	VAs
VAs, Phase B	300	U16	1	VAs
VAs, Phase C	301	U16	1	VAs
Power Factor, Phase A	302	I16	0.001
Power Factor, Phase B	303	I16	0.001
Power Factor, Phase C	304	I16	0.001
Volts A-N	999	F32BE	1	volts
Volts B-N	1001	F32BE	1	volts
Volts C-N	1003	F32BE	1	volts
Volts A-B	1005	F32BE	1	volts
Volts B-C	1007	F32BE	1	volts
Volts C-A	1009	F32BE	1	volts
Amps A	1011	F32BE	1	amps
Amps B	1013	F32BE	1	amps
Amps C	1015	F32BE	1	amps
Watts, 3-Ph total	1017	F32BE	1	watts
VARs, 3-Ph total	1019	F32BE	1	VARs
VAs, 3-Ph total	1021	F32BE	1	VAs
Power Factor, 3-Ph total	1023	F32BE	1
Frequency	1025	F32BE	1	Hz
Neutral Current	1027	F32BE	1	amps
Watts, Phase A	1029	F32BE	1	watts
Watts, Phase B	1031	F32BE	1	watts
Watts, Phase C	1033	F32BE	1	watts
VARs, Phase A	1035	F32BE	1	VARs
VARs, Phase B	1037	F32BE	1	VARs
VARs, Phase C	1039	F32BE	1	VARs
VAs, Phase A	1041	F32BE	1	VAs
VAs, Phase B	1043	F32BE	1	VAs
VAs, Phase C	1045	F32BE	1	VAs
Power Factor, Phase A	1047	F32BE	1
Power Factor, Phase B	1049	F32BE	1
Power Factor, Phase C	1051	F32BE	1
W-hours, Received	1499	I32BE	1	Wh
W-hours, Delivered	1501	I32BE	1	Wh
W-hours, Net	1503	I32BE	1	Wh
W-hours, Total	1505	I32BE	1	Wh
VAR-hours, Positive	1507	I32BE	1	VARh
VAR-hours, Negative	1509	I32BE	1	VARh
VAR-hours, Net	1511	I32BE	1	VARh
VAR-hours, Total	1513	I32BE	1	VARh
VA-hours, Total	1515	I32BE	1	VAh
W-hours, Received, Phase A	1517	I32BE	1	Wh
W-hours, Received, Phase B	1519	I32BE	1	Wh
Phase A Current	4099	I16	0.1	degree
Phase B Current	4100	I16	0.1	degree
Phase C Current	4101	I16	0.1	degree
Angle, Volts A-B	4102	I16	0.1	degree
Angle, Volts B-C	4103	I16	0.1	degree
Angle, Volts C-A	4104	I16	0.1	degree
Port ID	4499	U16	1
Meter Status	4500	U16	1
Limits Status	4501	U16	1
Time Since Reset	4502	U32BE	1	4 msec
Volts A-N, %THD	5999	U16	0.01	%
Volts B-N, %THD	6000	U16	0.01	%
Volts C-N, %THD	6001	U16	0.01	%
Amps A, %THD	6002	U16	0.01	%
Amps B, %THD	6003	U16	0.01	%
Amps C, %THD	6004	U16	0.01	%
Phase A Voltage harmonic magnitudes	6005	U16	0.01	%
Reset Max/Min Blocks	19999	U16	1
Reset Energy Accumulators	20000	U16	1
Reset Alarm Log	20001	U16	1
Reset System Log	20002	U16	1
Reset Historical Log 1	20003	U16	1
Reset Historical Log 2	20004	U16	1
Reset Historical Log 3	20005	U16	1
Reset I/O Change Log	20006	U16	1
Reset Power Quality Log	20007	U16	1
Reset Waveform Capture Log	20008	U16	1
Log Retrieval Session Duration	49996	U32BE	1	4 msec
Log Retrieval Session Com Port	49998	U16	1
Log Number, Enable, Scope	49999	U16	1
Records per Window or Batch, Record Scope Selector, Number of Repeats	50000	U16	1
Offset of First Record in Window	50001	U32BE	1
Log Retrieve Window	50003	U16	1

link settings as documented (unverified): RTU/ASCII/TCP; baud 1200/2400/4800/9600/14400/19200/38400/57600; FC 03,06,16,35; Function Code 0x23 is a user defined Modbus function code, which has a format similar to Function Code 0x03, except for the inclusion of a 'repeat count'.

bench facts as documented (unverified)

sentinel values	A reading of 10000 indicates invalid for THD and harmonics, or out of range for integer readings.
protocol notes	In the Shark 200 meter repeat counts are limited to 8 times for Modbus RTU, and 4 times for Modbus ASCII.
model register	16
serial register	8
firmware register	17
identification notes	In order to retrieve the meter's serial number, enter 40009 into the SCADA UI as the starting register, and 8 as the number of registers.
doc revision	E149701

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

The Primary Readings Block Format is Float, which often requires a 'reverse float' (swapped word order) setting in most SCADA/polling software. [source]
When CT and PT ratios are changed, the default configuration for the 20mA analog output card fails (outputting a constant 24mA) unless each channel is manually reprogrammed with high and low output values based on the primary values of the CT and PT. [source]
confirmed: baud_rates: [1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600] — confirmed by Shark 200 Meter User Manual V.1.38 and Quickstart Guide
confirmed: framing: [RTU, ASCII, TCP] — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: function_codes: [3, 6, 16, 35] — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: Function Code 0x23 is a user defined Modbus function code, which has a format similar to Function Code 0x03, except for the inclusion of a 'repeat count'. — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: In order to retrieve the meter's serial number, enter 40009 into the SCADA UI as the starting register, and 8 as the number of registers. — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: In the Shark 200 meter repeat counts are limited to 8 times for Modbus RTU, and 4 times for Modbus ASCII. — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: A reading of 10000 indicates invalid for THD and harmonics, or out of range for integer readings. — confirmed by Shark 200 Meter User Manual V.1.38
confirmed: volts_a_n @ 999, volts_b_n @ 1001, volts_c_n @ 1003, amps_a @ 1011, volts_a_n_int @ 278, volts_b_n_int @ 279, volts_c_n_int @ 280, amps_a_int @ 284 — confirmed by AGG Software Modbus Register Map and Shark 200 Meter User Manual V.1.38

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.

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