verified connector library

Schneider Altistart 22 (ATS22) soft starter

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
soft_starter_rated_current0U161A
connection_type1U161
line_voltage_setting2U161
motor_rated_current3U161A
setting_lock4U161
advanced_mode5U161
initial_voltage16U161
current_limit17U161% of In
max_start_time18U161
acceleration_time19U161s
deceleration_time20U161s
end_of_deceleration21U161
motor_thermal_protection22U161
number_of_starts32U161
starts_period33U161
boost_time34U160.1s
start_stop_control35U161
start_stop_profile_control_voltage36U161
proportional_gain37U161%
integral_gain38U161%
second_initial_voltage40U161
second_current_limit41U161% of In
second_acceleration_time42U161s
second_deceleration_time43U161s
second_motor_rated_current44U161A
under_current_threshold48U161
under_current_time_delay49U161
overcurrent_threshold50U161% of In
overcurrent_time_delay51U160.1s
unbalance_threshold52U161
unbalance_time_delay53U161
ground_leakage_current_threshold54U161% of In
ground_leakage_current_time_delay55U161s
phase_sequence56U161
phase_loss_detection57U161
under_voltage_threshold58U161
under_voltage_time_delay59U161
over_voltage_threshold60U161% of uLn
over_voltage_time_delay61U161s
ptc_probes_motor_monitoring62U161
overload_protection63U161
logic_input_272U161
logic_input_373U161
relay_174U161
relay_275U161
fan_management76U161
modbus_address80U161
modbus_baudrate81U161
modbus_format82U161
modbus_time_out83U160.1
command_channel84U161
status_register256U161
phase_1_current257U161A
phase_2_current258U161A
phase_3_current259U161A
voltage260U161
logical_inputs261U161
logic_output_relays_status262U161
frequency265U161Hz
leds_status269U161
total_run_time273U161
total_number_of_starts274U161
last_starting_time275U161
last_start_maximum_current276U161
total_number_of_trips278U161
last_trip279U161
trip_current280U161A
trip_history_1282U161
trip_history_2283U161
trip_history_3284U161
trip_history_4285U161
trip_history_5286U161
trip_history_6287U161
trip_history_7288U161
trip_history_8289U161
trip_history_9290U161
soft_starter_software_version317U161
control_register752U161

link settings as documented (unverified): RTU; default 19200 8E1; FC 03,06,16,43; Modbus address can be configured from 1 to 247. Address 0 is reserved for broadcasting.

⚠ LOSS OF CONTROL: System control paths may include communication links. Consideration must be given to the implications of unanticipated transmission delays or failures of the link. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)
terminalsRJ45
A/B polarityYes (Common), connected to the protective ground at one or more points on the bus
terminationOne 120 Ohm 0.25 W resistor in series with a 1 nF 10 V capacitor
connectorRJ45
shield/groundSignal ground (SNG) on RJ45 shield
wiring notesType of trunk cable: Shielded cable with 1 twisted pair and at least a 3rd conductor. Max length of bus: 1000 m at 19200 bps.
max registers/read63
response timeout5000 ms
broadcastsupported
protocol notesWrite multiple registers max PDU length: 61 words. EEPROM write limit: 500,000 operations.
identification notesDevice identification objects: 0x00 VendorName ('Schneider Electric'), 0x01 ProductCode ('ATS22XXXXXX'), 0x02 MajorMinorRevision ('0201')
FC 43 device IDsupported
powerControl supply: 230 V (+10% / -15%) or 220 V (-15%) for ATS22...Q/S6, 115 V (+10%) or 110 V (-15%) for ATS22...S6U. Power line supply: 230 V to 440 V (+10% / -15%) for ATS22...Q, 208 V to 600 V (+10% / -15%) for ATS22...S6/S6U.
environmentMax ambient temperature of 40 °C (104 °F)
accuracy24 Vdc accuracy: 24 V ±6 Vdc
certificationsUL508
doc revision09/2015

generated by gemini:gemini-3.5-flash · harvested from https://download.schneider-electric.com/files?p_Doc_Ref=BBV51330 (Schneider Electric); 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.

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