DENT PowerScout 3/18 submeter

Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire. Word order and scaling are confirmed at the hardware-verified rung and at no rung below it.

interop-verified

Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.

point	address (0-based)	type	scale	unit
kwh_system_lsw	4000	U16	1	kWh
kwh_system_msw	4001	U16	1	kWh
kw_system	4002	I16	1	kW
kw_demand_system_max	4003	I16	1	kW
kw_demand_system_now	4004	I16	1	kW
kw_system_max	4005	I16	1	kW
kw_system_min	4006	I16	1	kW
kvarh_system_lsw	4007	U16	1	kVARh
kvarh_system_msw	4008	U16	1	kVARh
kvar_system	4009	I16	1	kVAR
kvah_system_lsw	4010	U16	1	kVAh
kvah_system_msw	4011	U16	1	kVAh
kva_system	4012	U16	1	kVA
displacement_pf_system	4013	I16	0.01	PF
apparent_pf_system	4014	I16	0.01	PF
amps_system_avg	4015	U16	1	A
volts_line_to_line_avg	4016	U16	1	V
volts_line_to_neutral_avg	4017	U16	1	V
volts_l1_to_l2	4018	U16	1	V
volts_l2_to_l3	4019	U16	1	V
volts_l1_to_l3	4020	U16	1	V
line_frequency	4021	U16	1	Hz
kwh_l1_lsw	4022	U16	1	kWh
kwh_l1_msw	4023	U16	1	kWh
kwh_l2_lsw	4024	U16	1	kWh
kwh_l2_msw	4025	U16	1	kWh
kwh_l3_lsw	4026	U16	1	kWh
kwh_l3_msw	4027	U16	1	kWh
kw_l1	4028	I16	1	kW
kw_l2	4029	I16	1	kW
kw_l3	4030	I16	1	kW
kvarh_l1_lsw	4031	U16	1	kVARh
kvarh_l1_msw	4032	U16	1	kVARh
kvarh_l2_lsw	4033	U16	1	kVARh
kvarh_l2_msw	4034	U16	1	kVARh
kvarh_l3_lsw	4035	U16	1	kVARh
kvarh_l3_msw	4036	U16	1	kVARh
kvar_l1	4037	I16	1	kVAR
kvar_l2	4038	I16	1	kVAR
kvar_l3	4039	I16	1	kVAR
kvah_l1_lsw	4040	U16	1	kVAh
kvah_l1_msw	4041	U16	1	kVAh
kvah_l2_lsw	4042	U16	1	kVAh
kvah_l2_msw	4043	U16	1	kVAh
kvah_l3_lsw	4044	U16	1	kVAh
kvah_l3_msw	4045	U16	1	kVAh
kva_l1	4046	U16	1	kVA
kva_l2	4047	U16	1	kVA
kva_l3	4048	U16	1	kVA
displacement_pf_l1	4049	I16	0.01	PF
displacement_pf_l2	4050	I16	0.01	PF
displacement_pf_l3	4051	I16	0.01	PF
apparent_pf_l1	4052	I16	0.01	PF
apparent_pf_l2	4053	I16	0.01	PF
apparent_pf_l3	4054	I16	0.01	PF
amps_l1	4055	U16	1	A
amps_l2	4056	U16	1	A
amps_l3	4057	U16	1	A
volts_l1_to_neutral	4058	U16	1	V
volts_l2_to_neutral	4059	U16	1	V
volts_l3_to_neutral	4060	U16	1	V

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 03,06,17; Up to 41 PowerScout 18 meters (249 PowerScout 3 meters) may be connected to a single RTU.

⚠ CAUTION: This METER may contain life threatening voltages. QUALIFIED PERSONNEL MUST Disconnect all high voltage wiring before USING or servicing the METER. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

terminals	connector for four voltage wire leads (L1, L2, L3, Neutral), connectors for up to 18 CTs (PS18) or 3 CTs (PS3), three wire connector for RS-485 Modbus link
A/B polarity	The CTs are insensitive to orientation
connector	three wire connector for the RS-485 Modbus link
isolation	double insulation (IEC 536 Class II)
protocol notes	Each PowerScout 18 uses 6 Modbus addresses (A through F), each one higher than the previous.
model register	4200
serial register	4205
firmware register	4068
identification notes	Model and Serial numbers are 10 bytes ASCII Alpha-Numeric
power	From L1 Phase to L2 Phase. PS 18: 5 Watts typ. @ 600VAC, 2.5W typ. @ 80VAC; non-user replaceable .5 Amp Internal fuse protection.
environment	Operating Temperature: -7 to +60 oC (20 to 140 oF), Humidity: 5% to 95% non-condensing
accuracy	Better Than 1% (<0.5% typical) for V, A, kW, kVAR, kVA, PF
certifications	Conforms to UL Std 61010-1, Certified to CSA Std C22.2 No. 61010-1
doc revision	October 25, 2010

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

Downloading readings of multiple loads over the fixed 9600 bps baud rate of the legacy DENT meters can cause slight variations in timestamp synchronization due to bandwidth limitations. [source]
confirmed: comms.baud_rates: [9600] — confirmed by the User's Manual (October 25, 2010) which states 'Communication Rate: 9600 baud' and independent research noting the fixed 9600 bps rate of the legacy PowerScout 18.
confirmed: comms.default_unit_id: 1 — confirmed by the User's Manual stating 'The default factory setting is hex 01 (Modbus Address Decimal 01)'.
confirmed: comms.framing: ['RTU'] — confirmed by the User's Manual stating 'Modbus Framing: RTU (binary)'.
confirmed: comms.function_codes: [3, 6, 17] — confirmed by the User's Manual stating 'The Modbus commands that are used by the PowerScout meter are the Read Holding Register command [03], the Write (Preset) Single Register command [06] and the Return Slave ID command [17 / 0x11]'.
confirmed: facts.accuracy: 'Better Than 1% (<0.5% typical) for V, A, kW, kVAR, kVA, PF' — confirmed by the product specifications in the User's Manual.
confirmed: facts.certifications: 'Conforms to UL Std 61010-1, Certified to CSA Std C22.2 No. 61010-1' — confirmed by the Safety Summary in the User's Manual.
confirmed: facts.control_warning: 'CAUTION: This METER may contain life threatening voltages. QUALIFIED PERSONNEL MUST Disconnect all high voltage wiring before USING or servicing the METER.' — confirmed by the Safety Summary in the User's Manual.
confirmed: facts.doc_revision: 'October 25, 2010' — confirmed by the cover page of the User's Manual.

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.
interop-verified — Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.
simulator-verified — Decoded correctly against a protocol emulator seeded with known-true values — catches word-order/scaling errors vs the emulator, not the physical device.
hardware-verified x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

If your device isn't here, upload its register map. Generation is free, and the connector keeps the rung it earns under testing.

To prove a connector against your own device, order hardware verification. If it doesn't verify, you don't pay.

Platform builders can license the verified library: machine-readable maps, the firmware matrix, API access.