Bender PEM330/333 measuring device

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 only confirmed at the hardware-verified rung.

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
u_l1	40000	U32BE	0.01	V
u_l2	40002	U32BE	0.01	V
u_l3	40004	U32BE	0.01	V
u_ln_avg	40006	U32BE	0.01	V
u_l1_l2	40008	U32BE	0.01	V
u_l2_l3	40010	U32BE	0.01	V
u_l3_l1	40012	U32BE	0.01	V
u_ll_avg	40014	U32BE	0.01	V
i1	40016	U32BE	0.001	A
i2	40018	U32BE	0.001	A
i3	40020	U32BE	0.001	A
i_avg	40022	U32BE	0.001	A
p_l1	40024	U32BE	0.001	kW
p_l2	40026	U32BE	0.001	kW
p_l3	40028	U32BE	0.001	kW
p_sum	40030	U32BE	0.001	kW
q_l1	40032	U32BE	0.001	kvar
q_l2	40034	U32BE	0.001	kvar
q_l3	40036	U32BE	0.001	kvar
q_sum	40038	U32BE	0.001	kvar
s_l1	40040	U32BE	0.001	kVA
s_l2	40042	U32BE	0.001	kVA
s_l3	40044	U32BE	0.001	kVA
s_sum	40046	U32BE	0.001	kVA
pf_l1	40048	I16	0.001
pf_l2	40049	I16	0.001
pf_l3	40050	I16	0.001
pf_sum	40051	I16	0.001
frequency	40052	U16	0.01	Hz
i4	40053	U32BE	0.001	A
voltage_unbalance	40055	U16	0.001
current_unbalance	40056	U16	0.001
displacement_pf_l1	40057	I16	0.001
displacement_pf_l2	40058	I16	0.001
displacement_pf_l3	40059	I16	0.001
demand_p	40060	U32BE	0.001	kW
demand_q	40062	U32BE	0.001	kvar
demand_s	40064	U32BE	0.001	kVA
demand_i1	40066	U32BE	0.001	A
demand_i2	40068	U32BE	0.001	A
demand_i3	40070	U32BE	0.001	A
phase_angle_u1	40072	U16	0.01	°
phase_angle_u2	40073	U16	0.01	°
phase_angle_u3	40074	U16	0.01	°
phase_angle_i1	40075	U16	0.01	°
phase_angle_i2	40076	U16	0.01	°
phase_angle_i3	40077	U16	0.01	°
alarm	40095	U16	1
status_digital_outputs	40096	U16	1
status_digital_inputs	40097	U16	1
soe_pointer	40098	U32BE	1
active_energy_import	40100	U32BE	0.1	kWh
active_energy_export	40102	U32BE	0.1	kWh
reactive_energy_import	40106	U32BE	0.1	kvarh
reactive_energy_export	40108	U32BE	0.1	kvarh
apparent_energy	40112	U32BE	0.1	kVAh
peak_demand_p	40500	U32BE	0.001	kW
peak_demand_p_time	40502	U32BE	1
peak_demand_q	40504	U32BE	0.001	kvar
peak_demand_q_time	40506	U32BE	1
peak_demand_s	40508	U32BE	0.001	kVA
peak_demand_s_time	40510	U32BE	1
peak_demand_i1	40512	U32BE	0.001	A
peak_demand_i1_time	40514	U32BE	1
peak_demand_i2	40516	U32BE	0.001	A
peak_demand_i2_time	40518	U32BE	1
peak_demand_i3	40520	U32BE	0.001	A
peak_demand_i3_time	40522	U32BE	1
k_factor_i1	40703	U16	0.1
k_factor_i2	40704	U16	0.1
k_factor_i3	40705	U16	0.1
thd_u_l1	40718	U16	0.0001
thd_u_l2	40719	U16	0.0001
thd_u_l3	40720	U16	0.0001
thd_i1	40721	U16	0.0001
thd_i2	40722	U16	0.0001
thd_i3	40723	U16	0.0001

link settings as documented (unverified): RTU; default 9600 8E1; unit ID 100; FC 03,05,16; Supports 6-digit addressing scheme. Protocol version 6.0.

bench facts as documented (unverified)

protocol notes	DOx control requires ARM before EXECUTING (two steps). If an Execute command is not received within 15 seconds, the output will be deactivated again.
model register	60200...60219
firmware register	60220
doc revision	PEM330-PEM333_BA_en_D00007_00/03.2013

generated by gemini:gemini-3.5-flash · harvested from https://aktif.net/wp-content/uploads/2021/02/BENDER-MODBUS.pdf (Bender); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; proved interop-verified on 2026-06-11 · recorded 2026-06-11

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.

Have a device that isn't here? Upload its register map — generation is free, and the connector earns its rung by being proven, not claimed.

Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.

Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.