Rayleigh RI-F200 multifunction energy 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
Voltage V1-N	0	F32LE	1	V
Network Selection	1	U16	1
Voltage V2-N	2	F32LE	1	V
CT Primary	3	U16	1	A
Voltage V3-N	4	F32LE	1	V
PT Primary	5	U32LE	1	V
Average Voltage L-N	6	F32LE	1	V
Slave ID	7	U16	1
Voltage V1-2	8	F32LE	1	V
Parity	9	U16	1
Voltage V2-3	10	F32LE	1	V
Backlight OFF	11	U16	1	sec
Voltage V3-1	12	F32LE	1	V
Reset kWh	13	U16	1
Average Voltage L-L	14	F32LE	1	V
Reset kVArh	15	U16	1
Current I1	16	F32LE	1	A
Page Address Sequence	17	U16	1
Current I2	18	F32LE	1	A
Page Address Sequence	19	U16	1
Current I3	20	F32LE	1	A
Page Address Sequence	21	U16	1
Average Current	22	F32LE	1	A
Page Address Sequence	23	U16	1
kW1	24	F32LE	1	kW
Page Address Sequence	25	U16	1
kW2	26	F32LE	1	kW
Page Address Sequence	27	U16	1
kW3	28	F32LE	1	kW
Page Address Sequence	29	U16	1
kVA1	30	F32LE	1	kVA
Page Address Sequence	31	U16	1
kVA2	32	F32LE	1	kVA
Page Address Sequence	33	U16	1
kVA3	34	F32LE	1	kVA
Demand Interval Duration	35	U16	1
kVAr1	36	F32LE	1	kVAr
Reset Max kW	37	U16	1
kVAr2	38	F32LE	1	kVAr
Reset Max kVAr	39	U16	1
kVAr3	40	F32LE	1	kVAr
Reset Max kVA	41	U16	1
Total kW	42	F32LE	1	kW
Total kVA	44	F32LE	1	kVA
Total kVAr	46	F32LE	1	kVAr
PF1	48	F32LE	1
PF2	50	F32LE	1
PF3	52	F32LE	1
Average PF	54	F32LE	1
Page Address Sequence	55	U16	1
Frequency	56	F32LE	1	Hz
Pulse Duration	57	U16	1	sec
kWh	58	F32LE	1	kWh
Page Address Sequence	59	U16	1
kVAh	60	F32LE	1	kVAh
kVArh	62	F32LE	1	kVArh
kW Max Active Power	64	F32LE	1	kW
kW Min Active Power	66	F32LE	1	kW
kVAr Max Reactive Power	68	F32LE	1	kVAr
kVAr Min Reactive Power	70	F32LE	1	kVAr
kVA Max Apparent Power	72	F32LE	1	kVA
Neutral Current THD	122	F32LE	1	%
THD of Voltage V1N	124	F32LE	1	%
THD of Voltage V2N	126	F32LE	1	%
THD of Voltage V3N	128	F32LE	1	%
THD of Voltage V1-2	130	F32LE	1	%
THD of Voltage V2-3	132	F32LE	1	%
THD of Voltage V3-1	134	F32LE	1	%
THD of Current I1	136	F32LE	1	%
THD of Current I2	138	F32LE	1	%
THD of Current I3	140	F32LE	1	%
Serial No.	684	U32LE	1
Max I1 Demand	692	F32LE	1	A
Max I2 Demand	694	F32LE	1	A
Max I3 Demand	696	F32LE	1	A
Max Average Current Demand	698	F32LE	1	A
Phase Sequence Indicator	700	U32LE	1
Existing Max Active Power	702	F32LE	1	kW
Existing Min Active Power	704	F32LE	1	kW
Existing Max Reactive Power	706	F32LE	1	kVAr
Existing Min Reactive Power	708	F32LE	1	kVAr
Existing Max Apparent Power	710	F32LE	1	kVA
Existing Max I1 Demand	712	F32LE	1	A
Existing Max I2 Demand	714	F32LE	1	A
Existing Max I3 Demand	716	F32LE	1	A
Existing Max Avg. Current Demand	718	F32LE	1	A

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 03,04; RTU (LSB first, apply address offset of +1 for Function 3 Holding Registers)

bench facts as documented (unverified)

protocol notes	Scan Rate: <= 100mS. FLOAT ordering = MSB.LSB (2301) - FLOAT REVERSE WORD.
serial register	30684
doc revision	RI-F200-C-COMM V01

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

confirmed: comms defaults (baud rate 9600, unit ID 1, parity N, stop bits 1, RTU framing, function codes 3 and 4) — confirmed by RI-F200-C Modbus Registers document (RI-F200-C-COMM V01) [1.1.1]
confirmed: serial register address 30684 — confirmed by RI-F200-C Modbus Registers document (RI-F200-C-COMM V01)
confirmed: float ordering as FLOAT REVERSE WORD (MSB.LSB / 2301) and scan rate <= 100ms — confirmed by RI-F200-C Modbus Registers document (RI-F200-C-COMM V01)
confirmed: register map addresses (e.g., voltage_v1_n @ 0, current_i1 @ 16, total_kw @ 42, kwh @ 58, neutral_current_thd @ 122) — confirmed by RI-F200-C Modbus Registers document (RI-F200-C-COMM V01)

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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