Veichi AC10 AC drive

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

point	address (0-based)	type	scale	unit
Parameter access level	0	U16	1
Initialization	3	U16	1
Keyboard parameter copy	4	U16	1
User password	5	U16	1
LCD keyboard language selection	6	U16	1
Free parameter 1	7	U16	1
Free parameter 2	8	U16	1
Motor 1 control mode	256	U16	1
Run command channel	257	U16	1
Frequency reference source channel A	258	U16	1
Frequency reference source channel A gain	259	U16	1
Frequency reference source channel B	260	U16	1
Frequency reference source channel B gain	261	U16	1
Frequency channel B reference source	262	U16	1
Frequency reference source selection	263	U16	1
Run command bundled given frequency	264	U16	1
Keyboard digital given frequency	265	U16	1
Maximum frequency	266	U16	1
Upper frequency source selection	267	U16	1
Upper limit frequency digital setting	268	U16	1
Lower limit frequency	269	U16	1
Acceleration/deceleration time reference frequency	276	U16	1
Acceleration time unit	277	U16	1
Acceleration time 1	278	U16	1
Deceleration time 1	279	U16	1
Acceleration time 2	280	U16	1
Deceleration time 2	281	U16	1
Acceleration time 3	282	U16	1
Deceleration time 3	283	U16	1
Acceleration time 4	284	U16	1
Deceleration time 4	285	U16	1
S curve acceleration and deceleration selection	286	U16	1
Acceleration start S curve time	287	U16	1
Accelerated end S curve time	288	U16	1
Deceleration start S curve time	289	U16	1
Deceleration end S curve time	290	U16	1
Acceleration time 1 and acceleration time 2 switching freque	291	U16	1
Carrier frequency	296	U16	1
PWM control mode	297	U16	1
Reserved	298	U16	1
Dead zone compensation gain	299	U16	1
Motor type	512	U16	1
Pole number	513	U16	1
Motor rated power	514	U16	1
Motor rated frequency	515	U16	1
Motor rated speed	516	U16	1
Motor rated voltage	517	U16	1
Motor rated current	518	U16	1
Motor parameter auto-tuning selection	519	U16	1
Asynchronous motor no-load current	522	U16	1
Asynchronous motor stator resistance	523	U16	1
Asynchronous motor rotor resistance	524	U16	1
Asynchronous motor stator leakage inductance	525	U16	1
Asynchronous motor stator inductance	526	U16	1
Stator resistance standard value	527	U16	1
Rotor resistance standard value	528	U16	1
Stator leakage inductance	529	U16	1
Stator inductance value	530	U16	1
F02.11~F02.14 decimal point selection	531	U16	1
Motor online learning function selection	562	U16	1
ASR speed rigidity level	768	U16	1
ASR speed rigid mode	769	U16	1
ASR (speed loop) proportional gain 1	770	U16	1
ASR (speed loop) integration time 1	771	U16	1
ASR filtering time 1	772	U16	1
ASR switching frequency 1	773	U16	1
ASR (speed loop) proportional gain 2	774	U16	1
ASR (speed loop) integration time 2	775	U16	1
ASR filtering time 2	776	U16	1
ASR switching frequency 2	777	U16	1
Current loop D-axis proportional gain	778	U16	1
Current loop D-axis integral gain	779	U16	1
Current loop Q-axis proportional gain	780	U16	1
Current loop Q-axis integral gain	781	U16	1
Electric state torque limit	782	U16	1
Power generation torque limit	783	U16	1
Regenerative torque limit at low speed	786	U16	1
Torque limit action frequency amplitude at low speed	787	U16	1
Asynchronous motor slip compensation	788	U16	1
Starting torque initial value	789	U16	1
Weak magnetic feedforward coefficient	798	U16	1
Weak magnetic control gain	799	U16	1
Weak magnetic current upper limit	800	U16	1
Weak magnetic voltage coefficient	801	U16	1
Output power limit	802	U16	1
Overexcitation braking gain	803	U16	1
Overexcitation braking limit	804	U16	1
Energy efficient operation	805	U16	1
Energy-saving operation excitation lower limit	806	U16	1
Energy-saving operating filter coefficient	807	U16	1
Torque control selection	808	U16	1
Torque command given	809	U16	1
Torque keyboard digital setting	810	U16	1
Torque input lower limit	811	U16	1
Lower limit corresponding setting	812	U16	1
Torque input upper limit	813	U16	1
Upper limit corresponding setting	814	U16	1
Torque filtering time	815	U16	1
Torque command upper limit	820	U16	1
Torque command lower limit	821	U16	1
Torque control forward speed limit selection	822	U16	1
Torque control reverse speed limit selection	823	U16	1
Torque control forward speed maximum speed limit	824	U16	1
Torque control anyway maximum speed limit	825	U16	1
Given torque gain switching frequency	826	U16	1
Given torque gain	827	U16	1
Linear VF curve selection	1024	U16	1
Torque boost	1025	U16	1
Torque boost cutoff frequency	1026	U16	1
Slip compensation gain	1027	U16	1
Slip compensation limit	1028	U16	1
Slip compensation filter time	1029	U16	1
Oscillation suppression gain	1030	U16	1
Oscillation suppression filter time	1031	U16	1
Output voltage percentage	1032	U16	1
Self-setting voltage V1	1034	U16	1
Self-set frequency F1	1035	U16	1
Self-setting voltage V2	1036	U16	1
Self-set frequency F2	1037	U16	1
Self-setting voltage V3	1038	U16	1
Self-set frequency F3	1039	U16	1
Self-setting voltage V4	1040	U16	1
Self-set frequency F4	1041	U16	1
Self-setting voltage V5	1042	U16	1
Self-set frequency F5	1043	U16	1
Automatic energy saving control	1054	U16	1
Energy saving step frequency lower limit	1055	U16	1
Energy-saving step-down voltage lower limit	1056	U16	1
Energy-saving step-down voltage regulation rate	1057	U16	1
Energy-saving voltage and voltage recovery rate	1058	U16	1
Terminal X1 function selection	1280	U16	1
Terminal X2 function selection	1281	U16	1
Terminal X3 function selection	1282	U16	1
Terminal X4 function selection	1283	U16	1
X1 effective detection delay	1290	U16	1
X1 invalid detection delay	1291	U16	1
X2 effective detection delay	1292	U16	1
X2 invalid detection delay	1293	U16	1
X3 effective detection delay	1294	U16	1
X3 invalid detection delay	1295	U16	1
X4 effective detection delay	1296	U16	1
X4 invalid detection delay	1297	U16	1
Terminal control mode	1300	U16	1
Terminal start protection	1301	U16	1
X1 ~ X4 terminal characteristics selection	1302	U16	1
Terminal UP/DW control selection	1305	U16	1
Terminal UP/DW controls frequency increase and decrease rate	1306	U16	1
Terminal emergency stop deceleration time	1307	U16	1
Reserved	1310	U16	1
PUL input minimum frequency	1311	U16	1
PUL minimum frequency corresponding setting	1312	U16	1
PUL input maximum frequency	1313	U16	1
PUL maximum frequency corresponding setting	1314	U16	1
PUL filter time	1315	U16	1
PUL cutoff frequency	1316	U16	1
AI input signal type selection method	1320	U16	1
Analog input curve selection	1323	U16	1
AI lower limit	1330	U16	1
AI lower limit corresponding setting	1331	U16	1
AI upper limit	1332	U16	1
AI upper limit corresponding setting	1333	U16	1
AI filter time	1334	U16	1
Curve 1 lower limit	1340	U16	1
Curve 1 lower limit corresponding setting	1341	U16	1
Curve 1 inflection point 1 input voltage	1342	U16	1
Curve 1 inflection point 1 corresponding setting	1343	U16	1
Curve 1 inflection point 2 input voltage	1344	U16	1
Curve 1 inflection point 2 corresponding setting	1345	U16	1
Curve 1 upper limit	1346	U16	1
Curve 1 upper limit corresponding setting	1347	U16	1
Curve 2 lower limit	1350	U16	1
Curve 2 lower limit corresponding setting	1351	U16	1
Curve 2 inflection point 1 input voltage	1352	U16	1
Curve 2 inflection point 1 corresponding setting	1353	U16	1
Curve 2 inflection point 2 input voltage	1354	U16	1
Curve 2 inflection point 2 corresponding setting	1355	U16	1
Curve 2 upper limit	1356	U16	1
Curve 2 upper limit corresponding setting	1357	U16	1
AI port to do digital input terminal feature selection	1360	U16	1
AI terminal function selection (as X)	1361	U16	1
AI high level setting	1362	U16	1
AI low level setting	1363	U16	1
AO output mode selection	1536	U16	1
AO output selection	1537	U16	1
AO output gain	1538	U16	1
AO output bias	1539	U16	1
AO output filtering	1540	U16	1
Output terminal polarity selection	1556	U16	1
Output terminal Y	1557	U16	1
Relay 1 output (TA-TB-TC)	1558	U16	1
Y output ON delay time	1561	U16	1
Relay 1 output ON delay time	1562	U16	1
Y output OFF delay time	1565	U16	1
Relay 1 output OFF delay time	1566	U16	1
Frequency detection value 1	1576	U16	1
Frequency detection amplitude 1	1577	U16	1
Frequency detection value 2	1578	U16	1
Frequency detection range 2	1579	U16	1
The given frequency reaches the detection range	1580	U16	1
Comparator 1 monitor selection	1586	U16	1
Comparator 1 upper limit	1587	U16	1
Comparator 1 lower limit	1588	U16	1
Comparator 1 bias	1589	U16	1
Action selection when sending CP1	1590	U16	1
Comparator 2 monitor selection	1591	U16	1
Comparator 2 upper limit	1592	U16	1
Comparator 2 lower limit	1593	U16	1
Comparator 2 bias	1594	U16	1
Action selection when sending CP2	1595	U16	1
Virtual vX1 terminal function selection	1596	U16	1
Virtual vX2 terminal function selection	1597	U16	1
Virtual vX3 terminal function selection	1598	U16	1
Virtual vX4 terminal function selection	1599	U16	1
vX terminal valid status source	1600	U16	1
Virtual vX terminal function code setting valid status	1601	U16	1
Virtual vY1 output selection	1602	U16	1
Virtual vY2 output selection	1603	U16	1
Virtual vY3 output selection	1604	U16	1
Virtual vY4 output selection	1605	U16	1
vY1 output ON delay time	1606	U16	1
vY2 output ON delay time	1607	U16	1
vY3 output ON delay time	1608	U16	1
vY4 output ON delay time	1609	U16	1
vY1 output OFF delay time	1610	U16	1
vY2 output OFF delay time	1611	U16	1
vY3 output OFF delay time	1612	U16	1
vY4 output OFF delay time	1613	U16	1
Start mode	1792	U16	1
Start pre-excitation time	1793	U16	1
Starting frequency	1794	U16	1
Start protection selection	1795	U16	1
Direction of rotation	1797	U16	1
Power failure restart action selection	1798	U16	1
Power failure restart waiting time	1799	U16	1
Stop mode	1802	U16	1
Shutdown detection frequency	1803	U16	1
Stop and restart limit time	1804	U16	1
Insufficient lower limit frequency action selection	1807	U16	1
Zero speed torque retention factor	1808	U16	1
Zero speed torque holding time	1809	U16	1
Positive reversal dead time	1810	U16	1
Braking current before starting	1812	U16	1
Braking time before starting	1813	U16	1
DC braking start frequency	1814	U16	1
DC braking current	1815	U16	1
DC braking time during shutdown	1816	U16	1
Speed tracking mode	1817	U16	1
Speed tracking speed	1818	U16	1
Speed tracking stop delay	1819	U16	1
Speed tracking current	1820	U16	1
Jog running frequency setting	1822	U16	1
Jog acceleration time	1823	U16	1
Jog deceleration time	1824	U16	1
Jog S curve selection	1825	U16	1
Jog stop mode selection	1826	U16	1
Maintain frequency at startup	1832	U16	1
Maintain frequency time at startup	1833	U16	1
Maintain frequency during shutdown	1834	U16	1
Maintain frequency time during shutdown	1835	U16	1
Jump frequency 1	1836	U16	1
Jump frequency amplitude	1837	U16	1
Jump frequency 2	1838	U16	1
Jump frequency amplitude	1839	U16	1
Counter input source	2048	U16	1
Count input crossover	2049	U16	1
Counter maximum	2050	U16	1
Counter setting	2051	U16	1
Pulse number per meter	2052	U16	1
Set length	2053	U16	1
Actual length	2054	U16	1
Timer time unit	2055	U16	1
Timer setting	2056	U16	1
Swing frequency control	2078	U16	1
Swing frequency amplitude control	2079	U16	1
Swing frequency preset frequency	2080	U16	1
Swing frequency preset frequency waiting time	2081	U16	1
Swing frequency amplitude	2082	U16	1
Kick frequency	2083	U16	1
Triangle wave rise time	2084	U16	1
Triangle wave fall time	2085	U16	1
Overcurrent suppression	2560	U16	1
Overcurrent suppression point	2561	U16	1
Overcurrent suppression gain	2562	U16	1
Current protection setting 1	2563	U16	1
Current protection setting 2	2564	U16	1
Operation Pause Delay	2570	U16	1
Bus overvoltage suppression	2571	U16	1
Bus overvoltage suppression point	2572	U16	1
Bus overvoltage suppression gain	2573	U16	1
Energy brake enable	2574	U16	1
Energy consumption braking action voltage	2575	U16	1
Bus undervoltage suppression	2576	U16	1
Bus undervoltage suppression point	2577	U16	1
Bus undervoltage suppression gain	2578	U16	1
Bus undervoltage protection point	2579	U16	1
Input and output phase loss protection options	2580	U16	1
Input phase loss threshold	2581	U16	1
Ground short circuit protection option	2582	U16	1
Fan ON/OFF control selection	2583	U16	1
Fan control delay time	2584	U16	1
AC Drive overheating oH1 detection level	2585	U16	1
Motor overload protection curve coefficient	2590	U16	1
Selection of AC Drive overload characteristics at low speed	2591	U16	1
Load warning checkout setting	2592	U16	1
Load warning detection level 1	2593	U16	1
Load warning detection time 1	2594	U16	1
Load warning detection level 2	2595	U16	1
Load warning detection time 2	2596	U16	1
Too large peed deviation protection action	2600	U16	1
Speed deviation excessive detection threshold	2601	U16	1
Speed deviation too large detection time	2602	U16	1
Speed protection action	2603	U16	1
Rapid detection threshold	2604	U16	1
Rapid speed detection time	2605	U16	1
Failure self-recovery	2610	U16	1
Failure self-recovery interval	2611	U16	1
Numbers of failures recovered	2612	U16	1
Key lock selection	2816	U16	1
Key lock password	2817	U16	1
Keyboard multi-function key selection	2818	U16	1
Keyboard STOP button settings	2819	U16	1
Status interface up and down keys (knob) function selection	2820	U16	1
Up and down keys to quickly change the parameter code settin	2821	U16	1
Keyboard command key selection	2822	U16	1
Status interface left shift, right shift key function select	2826	U16	1
Parameter 1 showed up on first line of the keyboard	2827	U16	1
Parameter 2 showed up on first line of the keyboard	2828	U16	1
Parameter 3 showed up on first line of the keyboard	2829	U16	1
Parameter 4 showed up on first line of the keyboard	2830	U16	1
Parameter 1 showed up on second line of the keyboard	2831	U16	1
Parameter 2 showed up on second line of the keyboard	2832	U16	1
Parameter 3 showed up on second line of the keyboard	2833	U16	1
Parameter 4 showed up on second line of the keyboard	2834	U16	1
Keyboard display item settings	2836	U16	1
Speed display factor	2837	U16	1
Power display factor	2838	U16	1
Monitoring parameter group display selection	2839	U16	1
Reserved	2840	U16	1
Display selection when the motor is self-tuning	2841	U16	1
AC10 serial port function selection	2846	U16	1
Keyboard potentiometer lower limit voltage	2847	U16	1
Keyboard potentiometer lower limit corresponding value	2848	U16	1
Keyboard potentiometer upper limit voltage	2849	U16	1
Keyboard potentiometer upper limit corresponding value	2850	U16	1
External keyboard potentiometer control	2851	U16	1
Master-slave choice	3072	U16	1
Modbus communication address	3073	U16	1
Communication baud rate selection	3074	U16	1
Modbus data format	3075	U16	1
Modbus transmission response processing	3076	U16	1
Modbus communication response delay	3077	U16	1
Modbus communication timeout failure time	3078	U16	1
Communication disconnection processing	3079	U16	1
Receive data (address 0x3000) zero bias	3080	U16	1
Receive data (address 0x3000) gain	3081	U16	1
Host cyclically send parameter selection	3082	U16	1
Frequency given custom address setting	3083	U16	1
Command given custom address settings	3084	U16	1
Command given as forward run command value	3085	U16	1
Command given as reverse run command value	3086	U16	1
Command given as stop command value	3087	U16	1
Command given as reset command value	3088	U16	1
PID controller given signal source	3328	U16	1
Keyboard digital PID given / feedback	3329	U16	1
PID given change time	3330	U16	1
PID controller feedback signal source	3331	U16	1
Feedback signal low pass filtering time	3332	U16	1
Feedback signal gain	3333	U16	1
Feedback signal range	3334	U16	1
PID control selection	3335	U16	1
PID preset output	3336	U16	1
PID preset output running time	3337	U16	1
PID control deviation limit	3338	U16	1
Proportional gain P1	3339	U16	1
Integration time I1	3340	U16	1
Differential gain D1	3341	U16	1
Proportional gain P2	3342	U16	1
Integration time I2	3343	U16	1
Differential gain D2	3344	U16	1
PID parameter switching condition	3345	U16	1
Switching deviation low value	3346	U16	1
Switching deviation high value	3347	U16	1
Reserved	3348	U16	1
Differential limiting	3349	U16	1
PID output upper limit	3350	U16	1
PID output lower limit	3351	U16	1
PID output filtering time	3352	U16	1
Feedback disconnection action selection	3353	U16	1
Feedback disconnection detection time	3354	U16	1
Wire break alarm upper limit	3355	U16	1
Wire break alarm lower limit	3356	U16	1
Sleep selection	3357	U16	1
Sleep frequency	3358	U16	1
Sleep delay	3359	U16	1
Wake up deviation	3360	U16	1
Wake-up delay	3361	U16	1
PLC multi-speed 1	3584	U16	1
PLC multi-speed 2	3585	U16	1
PLC multi-speed 3	3586	U16	1
PLC multi-speed 4	3587	U16	1
PLC multi-speed 5	3588	U16	1
PLC multi-speed 6	3589	U16	1
PLC multi-speed 7	3590	U16	1
PLC multi-speed 8	3591	U16	1
PLC multi-speed 9	3592	U16	1
PLC multi-speed 10	3593	U16	1
PLC multi-speed 11	3594	U16	1
PLC multi-speed 12	3595	U16	1
PLC multi-speed 13	3596	U16	1
PLC multi-speed 14	3597	U16	1
PLC multi-speed 15	3598	U16	1
PLC operation mode selection	3599	U16	1
PLC first stage running time	3600	U16	1
PLC second stage running time	3601	U16	1
PLC third stage running time	3602	U16	1
PLC fourth stage running time	3603	U16	1
PLC fifth stage running time	3604	U16	1
PLC sixth stage running time	3605	U16	1
PLC seventh stage running time	3606	U16	1
PLC eighth stage running time	3607	U16	1
PLC ninth stage running time	3608	U16	1
PLC tenth stage running time	3609	U16	1
PLC eleventh stage running time	3610	U16	1
PLC twelveth stage running time	3611	U16	1
PLC thirteenth stage running time	3612	U16	1
PLC fourteenth stage running time	3613	U16	1
PLC fifteenth stage running time	3614	U16	1
PLC first direction and acceleration and deceleration time	3615	U16	1
PLC second direction and acceleration and deceleration time	3616	U16	1
PLC third direction and acceleration and deceleration time	3617	U16	1
PLC fourth direction and acceleration and deceleration time	3618	U16	1
PLC fifth direction and acceleration and deceleration time	3619	U16	1
PLC sixth direction and acceleration and deceleration time	3620	U16	1
PLC seventh direction and acceleration and deceleration time	3621	U16	1
PLC eighth direction and acceleration and deceleration time	3622	U16	1
PLC ninth direction and acceleration and deceleration time	3623	U16	1
PLC tenth direction and acceleration and deceleration time	3624	U16	1
PLC eleventh direction and acceleration and deceleration tim	3625	U16	1
PLC twelveth direction and acceleration and deceleration tim	3626	U16	1
PLC thirteenth direction and acceleration and deceleration t	3627	U16	1
PLC fourteenth direction and acceleration and deceleration t	3628	U16	1
PLC fifteenth direction and acceleration and deceleration ti	3629	U16	1
Given frequency	8448	U16	1
Output frequency	8449	U16	1
Output current	8450	U16	1
Input voltage	8451	U16	1	V
The output voltage	8452	U16	1	V
Mechanical speed	8453	I16	1
Given torque	8454	I16	1	%
Output torque	8455	I16	1	%
PID given	8456	U16	1	%
PID feedback	8457	U16	1	%
Output Power	8458	U16	1
bus voltage	8459	U16	1	V
Module temperature 1	8460	I16	1	°C
Module temperature 2	8461	I16	1	°C
Input terminal X is on	8462	U16	1
Output terminal Y is on	8463	U16	1
Analog AI input value	8464	U16	1	V
Reserved	8465	U16	1
Keyboard potentiometer input value	8466	U16	1
Pulse signal PUL input value	8467	U16	1
Analog output AO	8468	U16	1
Reserved	8469	U16	1
Counter count value	8470	U16	1
Power-on running time	8471	U16	1
Accumulated running time of the machine	8472	U16	1
AC Drive power level	8473	U16	1
AC Drive rated voltage	8474	U16	1
AC Drive rated current	8475	U16	1
Software version	8476	U16	1
PG feedback frequency	8477	U16	1
Timer timing	8478	U16	1
PID output value	8479	U16	1
AC Drive software subversion	8480	U16	1
Encoder feedback angle	8481	U16	1
Z pulse cumulative error	8482	U16	1
Z pulse count	8483	U16	1
Failure warning code	8484	U16	1
Cumulative power consumption (low level)	8485	U16	1
Cumulative power consumption (high)	8486	U16	1
Power factor angle	8487	U16	1
Fault type diagnostic information	8704	U16	1
Troubleshooting information	8705	U16	1
Fault operating frequency	8706	U16	1
Fault output voltage	8707	U16	1
Fault output current	8708	U16	1
Fault bus voltage	8709	U16	1
Faulty module temperature	8710	U16	1
Faulty AC Drive status	8711	U16	1
Fault input terminal status	8712	U16	1
Fault output terminal status	8713	U16	1
Previous failure type	8714	U16	1
Previous troubleshooting information	8715	U16	1
The first fault operation frequency	8716	U16	1
Last fault output voltage	8717	U16	1
Last fault output current	8718	U16	1
The first fault bus voltage	8719	U16	1
The first fault module temperature	8720	U16	1
The first faulty AC Drive status	8721	U16	1
The first fault input terminal status	8722	U16	1
The first fault output terminal status	8723	U16	1
First 2 fault types	8724	U16	1
The first 2 troubleshooting information	8725	U16	1
Top 3 fault types	8726	U16	1
The first 3 troubleshooting information	8727	U16	1
Communication Given Frequency	12288	U16	0.01	Hz
Communication Command Setting	12289	U16	1
State of AC Drive	12290	U16	1
AC Drive Fault Code	12291	U16	1
Communication Given Upper Frequency	12292	U16	0.01	Hz
Communication Torque Setting	12293	U16	0.1	%
The FWD Max Frequency limit in Torque Control	12294	U16	0.1	%
The REV Max Frequency limit in Torque Control	12295	U16	0.1	%
Communication Given PID Setting	12296	U16	0.1	%
Communication Given PID Feedback	12297	U16	0.1	%
Fault and warning code reading	12304	U16	1
Output terminal state	12312	U16	1
AO output	12313	U16	1

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 03,06; When F11.30 selects the external keyboard, the MODBUS bus (master/slave) cannot be used.

bench facts as documented (unverified)

terminals	A+, B-
termination	120Ω termination resistor selectable via switch S3
wiring notes	RS485 differential communication
response timeout	1000 ms
inter-frame delay	0 ms
protocol notes	Interval over 1.5 byte before ending clears half-baked info. Interval under 3.5 byte time is considered continuation of former frame. Writing to 0x00XX writes to RAM, writing to 0x10XX writes to EEPROM.
power	S2: Single-phase 220V, T2: Three-phase 220V, T3: Three-phase 380V
environment	-10 ~ +50°C (derating above 40°C, max 60°C), 5% to 95% RH (no condensation), altitude < 1000m, vibration 5.9 m/s2 (0.6 g)
certifications	IEC61800-2

field reports — community-sourced, unverified (checked 2026-06-11)

confirmed: Baud rates [1200, 2400, 4800, 9600, 19200, 38400, 57600], default baud 9600, default unit ID 1, framing RTU, parity N, stop bits 1 — confirmed by VEICHI AC10 Series Frequency Inverter Manual
confirmed: When F11.30 selects the external keyboard, the MODBUS bus (master/slave) cannot be used — confirmed by VEICHI AC10 Series Frequency Inverter Manual
confirmed: RS485 differential communication terminals A+, B- and 120Ω termination resistor selectable via switch S3 — confirmed by VEICHI AC10 Series Frequency Inverter Manual
confirmed: Power models S2 (Single-phase 220V), T2 (Three-phase 220V), and T3 (Three-phase 380V) — confirmed by VEICHI AC10 Series Frequency Inverter Catalog and Quick Start Guide
confirmed: Register addresses 12288 (0x3000) for given frequency, 12289 (0x3001) for command setting, 12290 (0x3002) for state of AC drive, and 12291 (0x3003) for fault code — confirmed by VEICHI AC10 Series Frequency Inverter Manual
confirmed: Register addresses 8448 (0x2100) for given frequency, 8449 (0x2101) for output frequency, 8450 (0x2102) for output current, and 8451 (0x2103) for input voltage — confirmed by VEICHI AC10 Series Frequency Inverter Manual

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.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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