verified connector library

Dwyer/Love Controls 4B/8B/16B/32B 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
process_value4096I160.10.1 °C/°F
set_point4097I160.10.1 °C/°F
upper_limit_temperature_range4098I160.1°C/°F
lower_limit_temperature_range4099I160.1°C/°F
input_temperature_sensor_type4100U161
control_method4101U161
heating_cooling_control_selection4102U161
proportional_band4105U160.1
integral_time4106U161s
derivative_time4107U161s
coef_dual_loop4110U160.01
dead_band_dual_loop4111I161
hysteresis_output_14112U161
hysteresis_output_24113U161
output_value_14114U160.1%
output_value_24115U160.1%
temperature_regulation_value4118I160.10.1 °C/°F
alarm_1_type4128U161
alarm_2_type4129U161
alarm_3_type4130U161
upper_limit_alarm_14132I160.1
lower_limit_alarm_14133I160.1
upper_limit_alarm_24134I160.1
lower_limit_alarm_24135I160.1
upper_limit_alarm_34136I160.1
lower_limit_alarm_34137I160.1
read_led_status4138U161
read_push_button_status4139U161

link settings as documented (unverified): RTU/ASCII; baud 2400/4800/9600/19200/38400; FC 02,03,05,06

⚠ Erasing the user entered values may result in a safety hazard and system malfunction. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsFork terminals with isolation (M3 screw, width is 7.0mm (6.0mm for 32B Series), hole diameter 3.2mm)
A/B polarityMake sure all wires are connected to the correct polarity of terminals
connectorScrew terminals
isolationDOUBLE INSULATION or REINFORCED INSULATION (equivalent to Class II of IEC 536)
shield/groundSG (Signal Ground) terminal
max registers/read8
protocol notes03H to read the contents of register (Max. 8 words). 02H to read the bits data (Max. 16 bits).
firmware register4143
power100 to 240 VAC 50/60 Hz OR 24 VDC (depending on model), 5VA max
environmentAmbient Temperature: 32°F to 122°F (0°C to +50°C), Storage Temperature: -4°F to 150°F (-20°C to +65°C), Relative Humidity: 35% to 80% (non-condensing), Altitude: 2000 m or less
accuracyDisplay Accuracy: 0 or 1 digit to the right of the decimal point (selectable). Current transformer accuracy: ±0.5 Amps
certificationsClass II of IEC 536
doc revisionFR# R5-443601-10 Rev. 5

generated by gemini:gemini-3.5-flash · harvested from https://assets.dwyeromega.com/manuals-do/E_90_BPC_rev5.pdf (Dwyer (Love Controls)); 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.