verified connector library

Senva TG gas sensor/controller

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
reset_status102U161
reset_count103U161
up_time104U32BE1s
co_warning_setpoint150F32BE1ppm
co_alarm_setpoint152F32BE1ppm
co_hysteresis154F32BE1ppm
co_sensor_calibration156F32BE1nA/ppm
co_sensor_life158I161d
no2_warning_setpoint160F32BE1ppm
no2_alarm_setpoint162F32BE1ppm
no2_hysteresis164F32BE1ppm
no2_sensor_calibration166F32BE1nA/ppm
no2_sensor_life168I161d
current_system_state170U161
fan_relay210U161
alarm_buzzer230U161
temperature310F32BE1°F
temperature_instantaneous312F32BE1°F
temperature_minimum314F32BE1°F
temperature_maximum316F32BE1°F
temperature_average318F32BE1°F
co_gas_concentration320F32BE1ppm
co_gas_concentration_smoothed322F32BE1ppm
co_gas_concentration_minimum324F32BE1ppm
co_gas_concentration_maximum326F32BE1ppm
co_gas_concentration_average328F32BE1ppm
no2_gas_concentration330F32BE1ppm
no2_gas_concentration_smoothed332F32BE1ppm
no2_gas_concentration_minimum334F32BE1ppm
no2_gas_concentration_maximum336F32BE1ppm
no2_gas_concentration_average338F32BE1ppm
power_supply_voltage380F32BE1V
power_supply_voltage_instantaneous382F32BE1V
power_supply_voltage_minimum384F32BE1V
power_supply_voltage_maximum386F32BE1V
power_supply_voltage_average388F32BE1V

link settings as documented (unverified): RTU/ASCII; baud 1200/9600/19200/38400/57600/76800/115200/230400/460800; FC 03,06,08,16,17; Supports automatic detection of baud rate, parity, data bits, and protocol.

⚠ The device provides no facility to revert the baud rate remotely. Once written, the device will lose communication until the client baud rate matches the new configuration. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsRS485 terminals
max registers/read125
broadcastsupported
FC 43 device IDnot supported
powerIf the supply voltage drops below 10.0 V, the device anticipates power loss and saves the current configuration to non-volatile memory.
doc revision154-0033-0A, Rev. 0A, 3/16/2017

generated by gemini:gemini-3.5-flash · harvested from https://www.senvainc.com/catalog/documents/downloadcenter/TG%20Series%20Modbus%20Protocol%20Guide.pdf (Senva); manual-faithful — the document's claims, panel risk: LOW — panel concurs, no field disagreements; proved interop-verified on 2026-06-10 · recorded 2026-06-10

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

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.