verified connector library

Crompton Integra Ci3/Ci1/Ri3 digital meter

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.

pointaddress (0-based)typescaleunit
phase_1_line_to_neutral_volts0F32BE1Volts
phase_2_line_to_neutral_volts2F32BE1Volts
phase_3_line_to_neutral_volts4F32BE1Volts
phase_1_current6F32BE1Amps
phase_2_current8F32BE1Amps
phase_3_current10F32BE1Amps
phase_1_power12F32BE1Watts
phase_2_power14F32BE1Watts
phase_3_power16F32BE1Watts
phase_1_volt_amps18F32BE1VoltAmps
phase_2_volt_amps20F32BE1VoltAmps
phase_3_volt_amps22F32BE1VoltAmps
phase_1_volt_amps_reactive24F32BE1VAr
phase_2_volt_amps_reactive26F32BE1VAr
phase_3_volt_amps_reactive28F32BE1VAr
phase_1_power_factor30F32BE1None
phase_2_power_factor32F32BE1None
phase_3_power_factor34F32BE1None
phase_1_phase_angle36F32BE1Degrees
phase_2_phase_angle38F32BE1Degrees
phase_3_phase_angle40F32BE1Degrees
average_line_to_neutral_volts42F32BE1Volts
average_line_current46F32BE1Amps
sum_of_line_currents48F32BE1Amps
total_system_power52F32BE1Watts
total_system_volt_amps56F32BE1VA
total_system_var60F32BE1VAr
total_system_power_factor62F32BE1None
total_system_phase_angle66F32BE1Degrees
frequency_of_supply_voltages70F32BE1Hz
import_wh_since_last_reset72F32BE1kWh/MWh
export_wh_since_last_reset74F32BE1kWh/MWh
import_varh_since_last_reset76F32BE1kVArh/MVArh
export_varh_since_last_reset78F32BE1kVArh/MVArh
vah_since_last_reset80F32BE1kVAh/MVAh
ah_since_last_reset82F32BE1Ah/kAh
total_system_power_demand84F32BE1Watts
maximum_total_system_power_demand86F32BE1Watts
total_system_va_demand100F32BE1VA
maximum_total_system_va_demand102F32BE1VA
neutral_current_demand104F32BE1
maximum_neutral_current_demand106F32BE1
line_1_to_line_2_volts200F32BE1Volts
line_2_to_line_3_volts202F32BE1Volts
line_3_to_line_1_volts204F32BE1Volts
average_line_to_line_volts206F32BE1Volts
neutral_current224F32BE1Amps
phase_1_ln_volts_thd234F32BE1%
phase_2_ln_volts_thd236F32BE1%
phase_3_ln_volts_thd238F32BE1%
phase_1_current_thd240F32BE1%
phase_2_current_thd242F32BE1%
phase_3_current_thd244F32BE1%
average_line_to_neutral_volts_thd248F32BE1%
average_line_current_thd250F32BE1%
total_system_power_factor_cos_phi254F32BE1Cos Ø
phase_1_current_demand258F32BE1Amps
phase_2_current_demand260F32BE1Amps
phase_3_current_demand262F32BE1Amps
maximum_phase_1_current_demand264F32BE1Amps
maximum_phase_2_current_demand266F32BE1Amps
maximum_phase_3_current_demand268F32BE1Amps
line_1_to_line_2_volts_thd334F32BE1%
line_2_to_line_3_volts_thd336F32BE1%
line_3_to_line_1_volts_thd338F32BE1%
average_line_to_line_volts_thd340F32BE1%
bench facts as documented (unverified)
terminals3 screw terminals (A, B, Gnd)
A/B polarityA and B
termination120 ohm resistor at each end
connectorscrew terminals
shield/groundscreens connected to Gnd terminal, Earth connection at only one point
max registers/read80
response timeout60 ms
broadcastnot supported
protocol notesMaximum latency time is 60ms. Attempts to read/write an odd number of registers prompt an exception.
serial register40043
doc revisionIssue 1.doc Oct-11

generated by gemini:gemini-3.5-flash · harvested from http://www.crompton-instruments.com/downloads/Ri3_Ci1_Ci3_comms_guide_v2.pdf (Crompton Instruments (TE)); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; proved interop-verified on 2026-06-11 · recorded 2026-06-11

The trust ladder

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