Schneider Conext Core XC central inverter

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
Product Model Designation	1	U16	1
Finished Goods Assembly Number	10	U16	1
Product Serial Number	20	U16	1
Product status	109	U16	1
Resistance	1000	F32BE	1
Capacitance	1002	F32BE	1
Injection status	1008	U16	1
Insulation alarm status	1100	U16	1
kWh Energy Produced	2050	U32BE	0.1	kWhr
Energy Today	2052	U32BE	1	kWhr
Operating Hours	2078	U32BE	1	Hours
Operational Mode State	5888	U16	1
Temperature Power Board	5889	I16	0.1	C
Temperature Heatsink 1	5890	I16	0.1	C
Temperature Heatsink 2	5891	I16	0.1	C
Temperature Heatsink 3	5892	I16	0.1	C
Grid Current	5893	I16	0.1	Arms
Apparent Power	6129	U16	0.1	kVA
Reactive Power	6132	I16	0.1	kVAr
Grid Voltage V12	6136	I16	0.1	Vrms
Grid Voltage V23	6137	I16	0.1	Vrms
Grid Voltage V31	6138	I16	0.1	Vrms
Grid Current Line 1	6139	I16	0.1	Arms
Grid Current Line 2	6140	I16	0.1	Arms
Grid Current Line 3	6141	I16	0.1	Arms
Active Power	6142	I16	0.1	kW
PV Voltage	6143	I16	0.1	VDC
PV Current	6144	I16	0.1	ADC
PV Power	6145	I16	0.1	kW
Grid Frequency	6146	I16	0.1	Hz
Grid Frequency (Hi Res)	6147	I16	0.01	Hz
DC Voltage	6157	I16	0.1	VDC
Thermal Loading	6158	U16	0.1	%
Phase A Frequency	6168	U16	0.1	Hz
Phase B Frequency	6169	U16	0.1	Hz
Phase C Frequency	6170	U16	0.1	Hz
Phase A Real Power	6171	I16	0.1	kW
Phase B Real Power	6172	I16	0.1	kW
Phase C Real Power	6173	I16	0.1	kW
Phase A Reactive Power	6174	I16	0.1	kVAr
Phase B Reactive Power	6175	I16	0.1	kVAr
Phase C Reactive Power	6176	I16	0.1	kVAr
Phase A Apparent Power	6177	U16	0.1	kVA
Phase B Apparent Power	6178	U16	0.1	kVA
Phase C Apparent Power	6179	U16	0.1	kVA
Event Code	6182	U16	1
System State	6183	U16	1
Alarm Code	6184	U16	1
Day Log Rate	16393	U16	1	Min
First Daytime Hour	16394	U16	1	Hours
Night Log Rate	16395	U16	1	Min
First Nighttime Hour	16396	U16	1	Hours
Grid Voltage 12 Gain Calibration	16476	U16	1000
Grid Voltage 23 Gain Calibration	16477	U16	1000
Grid Voltage 31 Gain Calibration	16478	U16	1000
Grid Voltage 12 Offset Calibration	16479	I16	0.1	V
Grid Voltage 23 Offset Calibration	16480	I16	0.1	V
Grid Voltage 31 Offset Calibration	16481	I16	0.1	V
Gain kVAr Inductive	16482	U16	0.1	V2/kVAr*Hz
Gain kVAr Capacitive	16483	U16	0.1	V2/kVAr*Hz
Disconnect Profile	16526	U16	1
P-analog Filter Time	16527	U16	0.01	s
Q-analog Filter Time	16528	U16	0.01	s
I1 Gain Cal	16529	U16	0.001	s
I2 Gain Cal	16530	U16	0.001	s
I3 Gain Cal	16531	U16	0.001	s
I1 Offset Cal	16532	U16	0.1	s
I2 Offset Cal	16533	U16	0.1	s
I3 Offset Cal	16534	U16	0.1	s
Analog Error Suppressed	16535	U16	1
Modbus User P Readout	16536	U16	0.1	kW
Modbus User Q Readout	16537	U16	0.1	kVAr
Analog P Signal Readout	16538	U16	0.1	mA
Analog Q Signal Readout	16539	U16	0.1	mA
AI Disconn LF Threshold	16563	U16	0.01	Hz
AI Disconn LF Delay	16564	U16	0.01	s
AI LF Disconn Function	16565	U16	1
P(f), Slew Rate Type	16571	U16	1
Oscillography Item 1 (Vab)	17990	I16	0.1	V
Oscillography Item 2 (Vbc)	17991	I16	0.1	V
Oscillography Item 3 (Vca)	17992	I16	0.1	V
Oscillography Item 4 (Ia)	17993	I16	0.1	A
Oscillography Item 5 (Ib)	17994	I16	0.1	A
Oscillography Item 6 (Ic)	17995	I16	0.1	A
Oscillography Item 7 (Vpv)	17996	I16	0.1	V
Oscillography Item 8 (Ipv)	17997	I16	0.1	A
Oscillography Item 9 (Ignd)	17998	I16	0.1	A
Oscillography Item 10 (Vdc)	17999	I16	0.1	V
Oscillography Item 11 (App-Info1)	18000	U16	1
Oscillography Item 12 (App-Info2)	18001	U16	1
Oscillography Item 13 (App-Info3)	18002	U16	1
Oscillography Item 14 (App-Info4)	18003	U16	1
Oscillography Item 15; reserved	18004	U16	1
Oscillography Item 16; reserved	18005	U16	1
Oscillography Item 17; reserved	18006	U16	1
Number of Data Log Records	18176	U16	1
Number of Event Log Records	18177	U16	1
Number of Fault Log Records	18178	U16	1
Log Request Index	18179	U16	1
Log Response Index	18180	U16	1
Logger mode	18181	U16	1
Logger state	18182	U16	1
Timestamp High	18208	U16	1
Timestamp Low	18209	U16	1
Timestamp ms	18210	U16	1	ms
Event 1	18211	U16	1
Event 2	18212	U16	1
Event 3	18213	U16	1
Event 4	18214	U16	1
Timestamp High	18240	U16	1
Timestamp Low	18241	U16	1
Timestamp ms	18242	U16	1	ms
Fault	18243	U16	1
Timestamp High	18449	U16	1
Timestamp Low	18450	U16	1
kWh Energy High	18451	U16	0.1	kWh
kWh Energy Low	18452	U16	0.1	kWh
Grid AC voltage phase A to phase B, RMS	18453	I16	0.1	V
Grid AC voltage phase B to phase C, RMS	18454	I16	0.1	V
Grid AC voltage phase C to phase A, RMS	18455	I16	0.1	V
Inverter AC Current Phase A, RMS	18456	I16	0.1	A
Inverter AC Current Phase B, RMS	18457	I16	0.1	A
Inverter AC Current Phase C, RMS	18458	I16	0.1	A
Grid frequency	18459	I16	0.1	Hz
Real power	18460	I16	1	kW
Reactive power	18461	I16	1	kVAr
DC bus voltage	18462	I16	0.1	V
PV voltage	18463	I16	0.1	V
PV current	18464	I16	0.1	A
PV Power	18465	I16	0.1	A
Ground Current	18466	I16	0.1	A
Normalized thermal numbers	18467	U16	1	%
App-Info1	18468	U16	1
App-Info2	18469	U16	1
App-Info3	18470	U16	1
App-Info4	18471	U16	1
DC Voltage Reference	18472	I16	0.1	V
Power reference	18473	I16	1	kW
Reactive power reference	18474	I16	1	kVAr
Power board temperature by slave 1	18475	I16	0.1	°C
Heatsink temperature (average) by slave 2	18476	I16	0.1	°C
Highest priority event code	18477	U16	1
Power Point Shifting Flag	18478	U16	0.1	V
Modbus Unit ID	32771	U16	1	#
Baud Rate	32784	U16	1
Parameter Control Station	57568	U16	1
Commit Modbus Settings	57569	U16	1
Remote Disable/Enable	61438	U16	1
Clear Service Mode	61439	U16	1
Rated Input (PV) Current	63489	U16	1	A
Maximum Input (PV) Voltage	63490	U16	1	VDC
Max Tracking Volt	63491	U16	1	V
Min Tracking Volt	63492	U16	1	V
Max PV OC Voltage	63493	U16	1	VDC
Max STC PV-SC Current	63494	U16	1	ADC
Rated Apparent Power	63495	U16	0.1	kVA
Rated Power at Unity PF	63496	I16	0.1	kW
Min Input (PV) Voltage	63497	U16	1	VDC
Nominal L-to-L Voltage	63498	U16	1	Vrms
Nominal Line Current	63499	U16	1	Arms
Rated Reactive Power	63500	I16	0.1	kVAr
P(f) Control Function	63990	U16	1
Reconn HV Threshold	63994	U16	1	%
User Phase Angle Ref	63995	I16	1	Deg
PV noP Disconn Delay	64002	U16	1	sec
Disconn HV Delay	64005	U16	1	ms
Disconn LV Delay	64006	U16	1	ms
Disconn HF Delay	64007	U16	1	ms
Disconn LF Delay	64008	U16	0.01	sec
Grid Reconnection Delay	64009	U16	1	sec
PV Reconn Delay	64010	U16	1	sec
Disconn HV Threshold	64011	U16	1	%
Disconn LV Threshold	64012	U16	1	%
User PV Voltage Ref	64013	U16	1	V
PV OC Start Voltage	64014	U16	1	V
Disconn HF Threshold	64015	U16	0.01	Hz
Disconn LF Threshold	64016	U16	0.01	Hz
MPPT Occurrence Factor	64018	U16	1
Perturb Voltage Step	64019	U16	0.1	V
LP PV Voltage Reference	64021	U16	1	V
LP Threshold	64022	U16	1	%
PV noP Disconn Threshold	64023	U16	0.1	%
User Active Power Limit	64025	I16	0.1	kW
Active Anti-Islanding Function	64026	U16	1
User Reactive Power Reference	64027	I16	0.1	kVAr
PV noP Disconn Delay Factor	64028	U16	1
User Apparent Power Limit	64029	U16	0.1	kVA
User Phase Current Limit	64030	U16	1	%
Utility Region	64031	U16	1
Language	64032	U16	1
Time (UTC)	64033	I32BE	1	sec
Voltage Support Function	64036	U16	1
P(f) Control, Reset Freq High	64040	U16	0.01	Hz
P(f) Control, Corner Freq	64041	U16	0.1	Hz
LP Transition Delay	64047	U16	1	sec
Sweep Enable	64048	U16	1
Sweep Occurrence	64049	U16	1	sec
Sweep Duration	64050	U16	0.1	sec
MPPT Type	64051	U16	1
P(f) Control, Slope	64052	U16	1	%/Hz
Power Ref. Ramp Time	64053	U16	1	ms
System L-to-L Voltage	64054	U16	1	Vrms
Disconn very HV Threshold	64055	U16	1	%
Disconn very HV Delay	64057	U16	1	ms
Disconn very LV Threshold	64058	U16	1	%
Disconn very LV Delay	64060	U16	1	ms
Disconn very LF Threshold	64061	U16	0.01	Hz
Disconn very LF Delay	64063	U16	1	ms
Disconn very HF Threshold	64064	U16	0.01	Hz
Disconn very HF Delay	64066	U16	1	ms
Reconn LF Threshold	64067	U16	0.01	Hz
Reconn HF Threshold	64068	U16	0.01	Hz
Reconn LV Threshold	64069	U16	1	%
Reconn Power Ramp Time	64070	U16	1	sec
Service Code	64071	U16	1
Power Reference Selection	64072	U16	1
Voltage Support Factor	64073	U16	0.1
Access Code	64074	U16	1
MPPT Offset Factor	64075	U16	1
MPPT Offset Maximum	64076	U16	1	W
MPPT Offset Minimum	64077	U16	1	W
MPPT Sampling Interval	64078	U16	1	ms
MPPT Reset Factor	64079	U16	0.01
MPPT Sweep Trigger	64080	U16	1
Sweep Start Voltage	64081	U16	1	V
Sweep Stop Voltage	64082	U16	1	V
Sweep Range Voltage	64083	U16	1	V
P(f) Control, Reset Time	64088	U16	1	sec
V-Support Low Threshold	64089	U16	1	%
V-Support High Threshold	64090	U16	1	%
DC Cap Surge Accum	64264	U16	1	Min
Voltage Envelope Threshold	64272	U16	1	%
Voltage Envelope Delay	64273	U16	1	Samples
DC Switch Open Count	64305	U16	1
AC Switch Open Count	64306	U16	1
GFD Reconn Delay	64330	U16	1	min
GFD Max Daily Count	64331	U16	1	count
Vac-Regulation	64344	U16	1
Q(V), V2s	64345	U16	1	%
Q(V), V1s	64346	U16	1	%
Q(V), V1i	64347	U16	1	%
Q(V), V2i	64348	U16	1	%
Phi(P), Pb	64350	U16	1	%
Phi(P), PFc	64351	U16	0.01
Phi(P), Vlock in	64352	U16	1	%
Phi(P), Vlock out	64353	U16	1	%
Power Ramp Rate	64354	U16	0.1	%/min
Min. Power Ramp Step	64355	U16	0.1	kW
Reconnect Start Delay	64356	U16	1	sec
Reconnect Power Ramp Type	64357	U16	1
Q(V), P Lock in	64358	U16	1	%
Q(V), P Lock out	64359	U16	1	%
P Lock in Delay	64360	U16	0.01	sec
P Lock out Delay	64361	U16	0.01	sec
OVSPD, Voltage Threshold	64362	U16	1	%
OVSPD, Power Limit	64363	U16	1	%
OVSPD, Ramp Down Rate	64364	U16	0.1	%/min
OVSPD, Ramp Up Rate	64365	U16	0.1	%/min
P(f)2, A Frequency	64366	U16	0.01	Hz
P(f)2, B Frequency	64367	U16	0.01	Hz
P(f)2, C Frequency	64368	U16	0.01	Hz
P(f)2, D Frequency	64369	U16	0.01	Hz
P(f)2, A Power	64370	U16	0.1	%
P(f)2, B Power	64371	U16	0.1	%
P(f)2, C Power	64372	U16	0.1	%
P(f)2, D Power	64373	U16	0.1	%
P(f)2, P Snapshot	64374	U16	1
P(f)2, F Lock in	64375	U16	0.01	Hz
P(f)2, F Lock out	64376	U16	0.01	Hz
P(f)2, F Lock in Delay	64377	U16	1	ms
P(f)2, F Lock out Delay	64378	U16	1	ms
Max DC Operating Voltage	64404	U16	1	V
PV OC Recovery Delay	64405	U16	1	min
P(f) Control, Reset Freq Low	64406	U16	0.01	Hz
P(f) Control, Reset Delay	64407	U16	1	sec
CQ Mode	64413	U16	1
Software Reset	64414	U16	1
Device Active Status	64415	U16	1
Countdown	64419	U16	1
Max Daily Online Cycling	64466	U16	1
Fan Speed	64474	U16	0.1	V
Q(V) Qmax AVR	64480	I16	1	%

link settings as documented (unverified): RTU; default 19200 8E1; unit ID 247; FC 03,08,16,43; If the Vigilohm IM400 device is installed, do not configure the devices in the Conext Core XC Series for 57600 baud. The IM400 only supports up to 38400 baud.

⚠ LOSS OF CONTROL: The designer of any control scheme must consider the potential failure modes of control paths and, for certain critical control functions, provide a means to achieve a safe state during and after a path failure. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

wiring notes	RS-485 serial communication standard.
sentinel values	0xFFFF for invalid registers
protocol notes	When an invalid register is read from, the inverter responds with 0xFFFF in the data field but it does not return an error code. When written to, it responds with an Invalid Address exception.
model register	0x1-0x9
serial register	0x14-0x1D
firmware register	FC43
identification notes	FC43 returns Vendor Name, Product Code, and Application Firmware Revision.
FC 43 device ID	supported
doc revision	Revision A
firmware applicability	v1.07 and later, v1.09 and later, v3.00 and later, v3.01 and later, v3.02 and later, v5.00 and later

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

confirmed: comms.baud_rates — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.default_baud — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.default_unit_id — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.framing — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.function_codes — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.notes — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.parity — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)
confirmed: comms.stop_bits — confirmed by Conext Core XC Using Modbus Application Note (AP-XC-095)

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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