Wiki source code of 6.2 Modbus protocol

Version 15.1 by Admin on 2025/03/20 12:11

version	line-number	content
1.1	1	(% data-numbered-headings-start="6" style="--numbered-headings-start: 5;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
	2	= Communication protocols =
	3
	4	(% data-numbered-headings-start="2" style="--numbered-headings-start: 1;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
	5	== Modbus protocol ==
	6
	7	=== General information ===
	8
5.1	9	The BMS Main 3 device provides information about the battery system using Modbus protocol. The BMS is a Modbus-server and it responds to the Modbus-client’s commands.
1.1	10
	11	Interaction with the device is performed over the RS-485 bus (Modbus RTU) or the Ethernet network (Modbus TCP).
	12
	13	The RS-485 bus connection parameters:
	14
	15	* baud rate, bps — 600, 1200, 2400, 4800, 9600 (by default), 19200, 38400, 57600, 115200;
	16	* word length, bits — 8;
	17	* parity — none;
	18	* device address (by default) — 32.
	19
	20	Ethernet connection parameters:
	21
	22	* port — 502.
	23
	24	There is a description of the Input и Holding registers below. Column "Type" contains method of parameter coding:
	25
	26	* U8 — unsigned 8-bit integer number;
	27	* U16 — unsigned 16-bit integer number;
	28	* S16 — signed 16-bit integer number;
	29	* U32 — unsigned 32-bit integer number;
	30	* REAL32 — single precision floating point number ([[IEEE 754>>url:https://ru.wikipedia.org/wiki/IEEE_754]] standard);
	31	* U8[x] — array of unsigned 8-bit integer numbers having a length of x;
	32	* U16[x] — array of unsigned 16-bit integer numbers having a length of x;
	33	* REAL32[x] — array of single precision floating point numbers having a length of x.
	34
	35	The bytes order of the word is little endian.
	36
	37	=== Input registers ===
	38
5.3	39	(% style="width:616px" %)
	40	\|(% style="width:73px" %)Register address\|(% style="width:66px" %)Number of registers\|(% style="width:437px" %)Content\|(% style="width:37px" %)Type
	41	\|(% style="width:73px" %)0x0000\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
1.1	42	Hardware version:
	43
	44	byte 0 — minor;
	45
	46	byte 1 — major.
5.3	47	)))\|(% style="width:37px" %)U8[2]
	48	\|(% style="width:73px" %)0x0001-0x0002\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
1.1	49	Firmware version:
	50
	51	byte 0 — patch;
	52
	53	byte 1 — minor;
	54
	55	byte 2 — major;
	56
	57	byte 3 — not used (set to 0).
5.3	58	)))\|(% style="width:37px" %)U8[4]
	59	\|(% style="width:73px" %)0x0003-0x0004\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	60	Bootloader (ubl) version:
1.1	61
	62	byte 0 — patch;
	63
	64	byte 1 — minor;
	65
	66	byte 2 — major;
	67
	68	byte 3 — not used (set to 0).
5.3	69	)))\|(% style="width:37px" %)U8[4]
	70	\|(% style="width:73px" %)0x2000\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	71	Discrete input signals 1 (bitfield):
1.1	72
5.2	73	bit 0 — signal "Battery cover";
1.1	74
5.2	75	bit 1 — signal "Charger connected";
1.1	76
5.2	77	bit 2 — signal "Power up/down request";
1.1	78
5.2	79	bit 3 — signal "Inhibit charging";
1.1	80
5.2	81	bit 4 — signal "Inhibit discharging";
1.1	82
5.2	83	bit 5 — signal “CH contactor feedback”;
1.1	84
5.2	85	bit 6 — signal “DCH contactor feedback”;
1.1	86
5.2	87	bit 7 — signal “Insulation status”;
1.1	88
5.2	89	bit 8 — signal “Charge request”;
1.1	90
5.2	91	bit 9 — signal “Precharge request”;
1.1	92
5.2	93	bit 10 — signal “Discharge request”;
1.1	94
5.2	95	bit 11 — signal “PCH contactor feedback”;
1.1	96
5.2	97	bit 12 — signal “CH/DCH contactor feedback”;
1.1	98
5.2	99	bit 13 — signal “Main contactor feedback”;
1.1	100
5.2	101	bit 14 — signal “Interlock”;
1.1	102
5.2	103	bit 15 — signal “Fuse 1”.
5.3	104	)))\|(% style="width:37px" %)U16
	105	\|(% style="width:73px" %)0x2001-0x2002\|(% style="width:66px" %)2\|(% style="width:437px" %)Current (sensor 1, high range), А\|(% style="width:37px" %)REAL32
	106	\|(% style="width:73px" %)0x2003-0x2004\|(% style="width:66px" %)2\|(% style="width:437px" %)Temperature (sensor 1), °C\|(% style="width:37px" %)REAL32
	107	\|(% style="width:73px" %)0x2005-0x2006\|(% style="width:66px" %)2\|(% style="width:437px" %)Humidity, RH%\|(% style="width:37px" %)REAL32
	108	\|(% style="width:73px" %)0x2007-0x2008\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	109	Errors 1 (bitfield):
1.1	110
5.2	111	bit 0 — error "Overcurrent";
1.1	112
5.2	113	bit 1 — error "Undervoltage";
1.1	114
5.2	115	bit 2 — error "Overvoltage";
1.1	116
5.2	117	bit 3 — error "Low temperature (DCH)";
1.1	118
5.2	119	bit 4 — error "High temperature (DCH)";
1.1	120
5.2	121	bit 5 — error "Battery cover";
1.1	122
5.2	123	bit 6 — error "High humidity";
1.1	124
5.2	125	bit 7 — error "Water";
1.1	126
5.2	127	bit 8 — error "Logic high temperature";
1.1	128
5.2	129	bit 9 — error "Logic offline";
1.1	130
5.2	131	bit 10 — "Critical error";
1.1	132
5.2	133	bit 11 — "Crown error";
1.1	134
5.2	135	bit 12 — "Cell count error";
1.1	136
5.2	137	bit 13 — error "HYG offline";
1.1	138
5.2	139	bit 14 — reserved (set to 0);
1.1	140
5.2	141	bit 15 — error "Combilift offline";
1.1	142
5.2	143	bit 16 — error "Short circuit";
1.1	144
5.2	145	bit 17 — error "High contactor temperature";
1.1	146
5.2	147	bit 18 — "Logic count error";
1.1	148
5.2	149	bit 19 — "ADC error";
1.1	150
5.2	151	bit 20 — “Current sensor error”;
1.1	152
5.2	153	bit 21 — “CH contactor cycles error”;
1.1	154
5.2	155	bit 22 — “DCH contactor cycles error”;
1.1	156
5.2	157	bit 23 — error "Shunt offline";
1.1	158
5.2	159	bit 24 — “Shunt error”;
1.1	160
5.2	161	bit 25 — reserved (set to 0);
1.1	162
5.2	163	bit 26 — error “WDT reset”;
1.1	164
5.2	165	bit 27 — error "No temperature sensors";
1.1	166
5.2	167	bit 28 — error "Temperature sensor shorted";
1.1	168
5.2	169	bit 29 — error “Spirit offline”;
1.1	170
5.2	171	bits 30-31 – not used.
5.3	172	)))\|(% style="width:37px" %)U32
	173	\|(% style="width:73px" %)0x2009-0x200A\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	174	Internal signals (bitfield):
1.1	175
	176	bit 0 — signal "Low SOC";
	177
	178	bit 1 — signal "High charging current";
	179
	180	bit 2 — signal “Charging” (0 – open, 1 – closed);
	181
	182	bit 3 — signal "Allow charging" (0 – open, 1 – closed);
	183
	184	bit 4 — signal "Charging current present";
	185
	186	bit 5 — signal “Discharging” (0 – open, 1 – closed);
	187
	188	bit 6 — signal "Discharging current present";
	189
	190	bit 7 — signal "Voltage too high for charging";
	191
	192	bit 8 — signal "Heater" (0 – off, 1 – on);
	193
	194	bit 9 — signal "Cooler" (0 – off, 1 – on);
	195
	196	bit 10 — signal “Shutdown request (HYG/Spirit)”;
	197
	198	bit 11 — signal “Init” (current sensor calibration or BMS Logic scanning is performed);
	199
	200	bit 12 — signal “Precharging” (0 – open, 1 – closed);
	201
	202	bit 13 — signal “Shutdown request (Combilift)”;
	203
	204	bit 14 — signal "Cell analysis";
	205
	206	bit 15 — signal “Balancing 1”;
	207
	208	bit 16 — signal “Balancing 2”;
	209
	210	bit 17 — signal “Discharging (AUX)” (0 – open, 1 – closed);
	211
	212	bit 18 — signal “Power down ACK”;
	213
	214	bit 19 — signal “Crown EWS”;
	215
	216	bit 20 — signal “Main contactor” (0 – open, 1 – closed);
	217
	218	bit 21 — signal “Service reset”;
	219
	220	bit 22 — signal “Charging/Discharging” (0 – open, 1 – closed);
	221
	222	bit 23 — signal “Ready to charge”;
	223
	224	bit 24 — signal “Ready to discharge”;
	225
	226	bit 25 — signal “Power up”;
	227
5.6	228	bit 26 — signal “External 1”;
	229
9.1	230	bits 27-31 — not used.
5.3	231	)))\|(% style="width:37px" %)U32
	232	\|(% style="width:73px" %)0x200B\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	233	Discrete output signals (bitfield):
1.1	234
5.2	235	bit 0 — state of the output 1;
1.1	236
5.2	237	bit 1 — state of the output 2;
1.1	238
5.2	239	bit 2 — state of the output 3;
1.1	240
5.2	241	bit 3 — state of the output 4;
1.1	242
5.2	243	bits 4-15 — not used.
5.3	244	)))\|(% style="width:37px" %)U16
	245	\|(% style="width:73px" %)0x200C\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	246	Power switch states (bitfield):
1.1	247
5.2	248	bit 0 — state of the power switch 1 (0 – open, 1 – closed);
1.1	249
5.2	250	bit 1 — state of the power switch 2 (0 – open, 1 – closed);
1.1	251
5.2	252	bit 2 — state of the power switch 3 (0 – open, 1 – closed);
1.1	253
5.2	254	bit 3 — state of the power switch 4 (0 – open, 1 – closed);
1.1	255
5.2	256	bit 4 — state of the power switch 5 (0 – open, 1 – closed);
1.1	257
5.2	258	bit 5 — state of the power switch 6 (0 – open, 1 – closed);
1.1	259
5.2	260	bits 6-15 — not used.
5.3	261	)))\|(% style="width:37px" %)U16
5.5	262	\|(% style="width:73px" %)0x200E-0x200F\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	263	Errors 2 (bitfield):
1.1	264
	265	bit 0 — error "Low temperature (CH)";
	266
	267	bit 1 — error “High temperature (CH)”;
	268
	269	bit 2 — reserved (set to 0);
	270
	271	bit 3 — reserved (set to 0);
	272
	273	bit 4 — error “Unallowable charging”;
	274
	275	bit 5 — error “Stuck contactor”;
	276
	277	bit 6 — “CH contactor feedback error”;
	278
	279	bit 7 — “DCH contactor feedback error”;
	280
	281	bit 8 — “Insulation fault”;
	282
	283	bit 9 — “PCH contactor feedback error”;
	284
	285	bit 10 — “CH/DCH contactor feedback error”;
	286
	287	bit 11 — “Main contactor feedback error”;
	288
	289	bit 12 — reserved (set to 0);
	290
	291	bit 13 — “General error”;
	292
5.2	293	bit 14 — “High voltage fault”;
1.1	294
5.2	295	bit 15 — “Power switch error”;
1.1	296
5.2	297	bit 16 — “HVIL error”;
1.1	298
5.2	299	bit 17 — “Precharge error”;
1.1	300
5.2	301	bit 18 — “Power fault”;
1.1	302
7.1	303	bit 19 — “Current limit" error;
	304
	305	bits 20-31 — not used.
5.3	306	)))\|(% style="width:37px" %)U32
	307	\|(% style="width:73px" %)0x2010\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device the parameters of which are in registers 0x2011-0x20C9\|(% style="width:37px" %)U16
	308	\|(% style="width:73px" %)0x2011\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	309	BMS Logic state (bitfield):
1.1	310
5.2	311	bit 0 — device is present;
1.1	312
5.2	313	bit 1 — device is online;
1.1	314
5.2	315	bit 2 — device is ready;
1.1	316
5.2	317	bit 3 — data from the device is actual;
1.1	318
5.2	319	bit 4 — temperature sensor 1 is present;
1.1	320
5.2	321	bit 5 — temperature sensor 2 is present;
1.1	322
5.2	323	bit 6 — temperature sensor 1 is shorted;
1.1	324
5.2	325	bit 7 — temperature sensor 2 is shorted;
1.1	326
5.2	327	bits 8-15 — not used.
5.3	328	)))\|(% style="width:37px" %)U16
	329	\|(% style="width:73px" %)0x2012-0x2013\|(% style="width:66px" %)2\|(% style="width:437px" %)BMS Logic device temperature, °C\|(% style="width:37px" %)REAL32
	330	\|(% style="width:73px" %)0x2014-0x2015\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	331	Cell balancing flags (bitfield):
1.1	332
5.2	333	bit i — balancing resistor is connected to the (i+1)^^th^^ cell.
5.3	334	)))\|(% style="width:37px" %)U32
	335	\|(% style="width:73px" %)0x2016-0x2029\|(% style="width:66px" %)20\|(% style="width:437px" %)(((
5.2	336	Array of cell states. Each element of the array corresponds to a cell and is a bitfield:
1.1	337
5.2	338	bit 0 — cell is present;
1.1	339
5.2	340	bit 1 — temperature sensor is present;
1.1	341
5.2	342	bit 2 — need to connect a balancing resistor to the cell;
1.1	343
5.2	344	bit 3 — balancing resistor is connected to the cell;
1.1	345
5.2	346	bit 4 — temperature sensor is shorted;
1.1	347
5.2	348	bit 5 — wires are connected to the cell;
1.1	349
5.2	350	bits 6-15 — not used.
5.3	351	)))\|(% style="width:37px" %)U16[20]
	352	\|(% style="width:73px" %)0x202A-0x2051\|(% style="width:66px" %)40\|(% style="width:437px" %)Array of cell voltages (V)\|(% style="width:37px" %)REAL32[20]
	353	\|(% style="width:73px" %)0x2052-0x2079\|(% style="width:66px" %)40\|(% style="width:437px" %)Array of cell temperatures (°C)\|(% style="width:37px" %)REAL32[20]
	354	\|(% style="width:73px" %)0x207A-0x20A1\|(% style="width:66px" %)40\|(% style="width:437px" %)Array of cell SOCs ~(%)\|(% style="width:37px" %)REAL32[20]
	355	\|(% style="width:73px" %)0x20A2-0x20C9\|(% style="width:66px" %)40\|(% style="width:437px" %)Array of cell resistances (Ohm)\|(% style="width:37px" %)REAL32[20]
	356	\|(% style="width:73px" %)0x20CA\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	357	BMS Logic board version:
1.1	358
5.2	359	byte 0 – minor;
1.1	360
5.2	361	byte 1 – major.
5.3	362	)))\|(% style="width:37px" %)U8[2]
	363	\|(% style="width:73px" %)0x20CB-0x20CC\|(% style="width:66px" %)2\|(% style="width:437px" %)(((
5.2	364	BMS Logic firmware version:
1.1	365
5.2	366	byte 0 – patch;
1.1	367
5.2	368	byte 1 – minor;
1.1	369
5.2	370	byte 2 – major;
1.1	371
5.2	372	byte 3 – not used (set to 0).
5.3	373	)))\|(% style="width:37px" %)U8[4]
	374	\|(% style="width:73px" %)0x20CD\|(% style="width:66px" %)1\|(% style="width:437px" %)Number of cells BMS Logic can manage\|(% style="width:37px" %)U16
	375	\|(% style="width:73px" %)0x20CE\|(% style="width:66px" %)1\|(% style="width:437px" %)BMS Logic serial number\|(% style="width:37px" %)U16
	376	\|(% style="width:73px" %)0x20F0-0x20F1\|(% style="width:66px" %)2\|(% style="width:437px" %)Temperature (sensor 2), °C\|(% style="width:37px" %)REAL32
	377	\|(% style="width:73px" %)0x20F2-0x20F3\|(% style="width:66px" %)2\|(% style="width:437px" %)Device supply voltage, V\|(% style="width:37px" %)REAL32
	378	\|(% style="width:73px" %)0x20F4\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	379	Discrete input signals 2 (bitfield):
1.1	380
5.2	381	bit 0 — signal "Fuse 2";
1.1	382
5.2	383	bit 1 — signal "Fuse 3";
1.1	384
5.2	385	bit 2 — signal "Circuit breaker status";
1.1	386
5.2	387	bit 3 — signal "Balancing request";
1.1	388
5.2	389	bit 4 — signal "Close Main contactor";
1.1	390
5.4	391	bit 5 — signal "Close External 1";
	392
	393	bits 6-15 — not used.
5.3	394	)))\|(% style="width:37px" %)U16
	395	\|(% style="width:73px" %)0x2100-0x2101\|(% style="width:66px" %)2\|(% style="width:437px" %)Battery state of charge (SOC), %\|(% style="width:37px" %)REAL32
	396	\|(% style="width:73px" %)0x2102\|(% style="width:66px" %)1\|(% style="width:437px" %)Number of connected BMS Logic devices\|(% style="width:37px" %)U16
	397	\|(% style="width:73px" %)0x2103\|(% style="width:66px" %)1\|(% style="width:437px" %)Number of connected cells\|(% style="width:37px" %)U16
	398	\|(% style="width:73px" %)0x2104-0x2105\|(% style="width:66px" %)2\|(% style="width:437px" %)Battery voltage, V\|(% style="width:37px" %)REAL32
	399	\|(% style="width:73px" %)0x2106-0x2107\|(% style="width:66px" %)2\|(% style="width:437px" %)Battery resistance, Ohm\|(% style="width:37px" %)REAL32
	400	\|(% style="width:73px" %)0x2108-0x2109\|(% style="width:66px" %)2\|(% style="width:437px" %)Effective capacity, A×h\|(% style="width:37px" %)REAL32
	401	\|(% style="width:73px" %)0x210A-0x210B\|(% style="width:66px" %)2\|(% style="width:437px" %)Balancing effectivity, %\|(% style="width:37px" %)REAL32
	402	\|(% style="width:73px" %)0x210C-0x210D\|(% style="width:66px" %)2\|(% style="width:437px" %)State of health, %\|(% style="width:37px" %)REAL32
	403	\|(% style="width:73px" %)0x210E-0x210F\|(% style="width:66px" %)2\|(% style="width:437px" %)Depth of discharge, A×h\|(% style="width:37px" %)REAL32
	404	\|(% style="width:73px" %)0x2110-0x2111\|(% style="width:66px" %)2\|(% style="width:437px" %)Minimum BMS Logic temperature\|(% style="width:37px" %)REAL32
	405	\|(% style="width:73px" %)0x2112\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device whose temperature is minimal\|(% style="width:37px" %)U16
	406	\|(% style="width:73px" %)0x2113-0x2114\|(% style="width:66px" %)2\|(% style="width:437px" %)Maximum BMS Logic temperature\|(% style="width:37px" %)REAL32
	407	\|(% style="width:73px" %)0x2115\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device whose temperature is maximal\|(% style="width:37px" %)U16
	408	\|(% style="width:73px" %)0x2116-0x2117\|(% style="width:66px" %)2\|(% style="width:437px" %)BMS Logic polling rate, commands pre second\|(% style="width:37px" %)REAL32
	409	\|(% style="width:73px" %)0x2118-0x2119\|(% style="width:66px" %)2\|(% style="width:437px" %)Minimum cell temperature\|(% style="width:37px" %)REAL32
	410	\|(% style="width:73px" %)0x211A\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device which is connected to the cell whose temperature is minimal\|(% style="width:37px" %)U16
	411	\|(% style="width:73px" %)0x211B\|(% style="width:66px" %)1\|(% style="width:437px" %)Position of the cell whose temperature is minimal\|(% style="width:37px" %)U16
	412	\|(% style="width:73px" %)0x211C-0x211D\|(% style="width:66px" %)2\|(% style="width:437px" %)Maximum cell temperature\|(% style="width:37px" %)REAL32
	413	\|(% style="width:73px" %)0x211E\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device which is connected to the cell whose temperature is maximal\|(% style="width:37px" %)U16
	414	\|(% style="width:73px" %)0x211F\|(% style="width:66px" %)1\|(% style="width:437px" %)Position of the cell whose temperature is maximal\|(% style="width:37px" %)U16
	415	\|(% style="width:73px" %)0x2120-0x2121\|(% style="width:66px" %)2\|(% style="width:437px" %)Minimum cell voltage\|(% style="width:37px" %)REAL32
	416	\|(% style="width:73px" %)0x2122\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device which is connected to the cell whose voltage is minimal\|(% style="width:37px" %)U16
	417	\|(% style="width:73px" %)0x2123\|(% style="width:66px" %)1\|(% style="width:437px" %)Position of the cell whose voltage is minimal\|(% style="width:37px" %)U16
	418	\|(% style="width:73px" %)0x2124-0x2125\|(% style="width:66px" %)2\|(% style="width:437px" %)Maximum cell voltage\|(% style="width:37px" %)REAL32
	419	\|(% style="width:73px" %)0x2126\|(% style="width:66px" %)1\|(% style="width:437px" %)Address of the BMS Logic device which is connected to the cell whose voltage is maximal\|(% style="width:37px" %)U16
	420	\|(% style="width:73px" %)0x2127\|(% style="width:66px" %)1\|(% style="width:437px" %)Position of the cell whose voltage is maximal\|(% style="width:37px" %)U16
	421	\|(% style="width:73px" %)0x2128\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	422	Error flag:
1.1	423
5.2	424	0 — no errors;
1.1	425
5.2	426	1 — there are some errors.
5.3	427	)))\|(% style="width:37px" %)U16
	428	\|(% style="width:73px" %)0x2130-0x2131\|(% style="width:66px" %)2\|(% style="width:437px" %)Energy received from the charger, W×h\|(% style="width:37px" %)REAL32
	429	\|(% style="width:73px" %)0x2132-0x2133\|(% style="width:66px" %)2\|(% style="width:437px" %)Energy consumed by the load, W×h\|(% style="width:37px" %)REAL32
	430	\|(% style="width:73px" %)0x2134-0x2135\|(% style="width:66px" %)2\|(% style="width:437px" %)Energy dissipated by the balancing resistors, W×h\|(% style="width:37px" %)REAL32
	431	\|(% style="width:73px" %)0x217B-0x217C\|(% style="width:66px" %)2\|(% style="width:437px" %)Coulomb received from the charger, A×h\|(% style="width:37px" %)REAL32
	432	\|(% style="width:73px" %)0x217D-0x217E\|(% style="width:66px" %)2\|(% style="width:437px" %)Coulomb consumed by the load, A×h\|(% style="width:37px" %)REAL32
	433	\|(% style="width:73px" %)0x21B8\|(% style="width:66px" %)1\|(% style="width:437px" %)Flag indicating that some cell is being balanced\|(% style="width:37px" %)U16
	434	\|(% style="width:73px" %)0x21CA-0x21CB\|(% style="width:66px" %)2\|(% style="width:437px" %)Average cell voltage, V\|(% style="width:37px" %)REAL32
5.5	435	\|(% style="width:73px" %)0x2400-0x2401\|(% style="width:66px" %)2\|(% style="width:437px" %)Current (sensor 1, low range), A\|(% style="width:37px" %)REAL32
	436	\|(% style="width:73px" %)(((
	437	0x2402-0x2403
	438	)))\|(% style="width:66px" %)2\|(% style="width:437px" %)Final battery current, A\|(% style="width:37px" %)REAL32
5.3	439	\|(% style="width:73px" %)0x2410\|(% style="width:66px" %)1\|(% style="width:437px" %)(((
5.2	440	Battery state (enumeration):
1.1	441
5.2	442	0 – Unknown;
1.1	443
5.2	444	1 – Charging ON;
1.1	445
5.2	446	2 – Charging OFF;
1.1	447
5.2	448	3 – Relaxed (after charging);
1.1	449
5.2	450	4 – Discharging ON;
1.1	451
5.2	452	5 – Discharging OFF;
1.1	453
5.2	454	6 – Relaxed (after discharging).
5.3	455	)))\|(% style="width:37px" %)U16
5.5	456	\|(% style="width:73px" %)0x2411-0x2412\|(% style="width:66px" %)2\|(% style="width:437px" %)Duration of the battery state (0x2410), seconds\|(% style="width:37px" %)U32
1.1	457
	458	=== Holding registers ===
	459
5.3	460	(% style="width:617px" %)
15.1	461	\|(% style="width:71px" %)Register address\|(% style="width:75px" %)Number of registers\|(% style="width:389px" %)Content\|(% style="width:87px" %)Type
	462	\|(% style="width:71px" %)0x4000\|(% style="width:75px" %)1\|(% style="width:389px" %)Address of the BMS Logic device whose parameters should be in the input registers 0x2011-0x20C9\|(% style="width:87px" %)U16
	463	\|(% style="width:71px" %)0x4000-0x4101\|(% style="width:75px" %)2\|(% style="width:389px" %)Acknowledgment of errors. Each single bit acknowledges corresponding error (see Errors 1 bitfield at address 0x2007-0x2008)\|(% style="width:87px" %)U32
	464	\|(% style="width:71px" %)0x5100\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	465	Software control of the "Battery cover" signal. Allowable values:
	466
	467	0 – clear the signal;
	468
	469	1 – set the signal;
	470
	471	2-65535 – use the physical input "Battery cover".
15.1	472	)))\|(% style="width:87px" %)U16
	473	\|(% style="width:71px" %)0x5101\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	474	Software control of the "Charger connected" signal. Allowable values:
	475
	476	0 – clear the signal;
	477
	478	1 – set the signal;
	479
	480	2-65535 – use the physical input "Charger connected".
15.1	481	)))\|(% style="width:87px" %)U16
	482	\|(% style="width:71px" %)0x5102\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	483	Software control of the "Power up/down request" signal. Allowable values:
	484
	485	0 – clear the signal;
	486
	487	1 – set the signal;
	488
	489	2-65535 – use the physical input "Power down request".
15.1	490	)))\|(% style="width:87px" %)U16
	491	\|(% style="width:71px" %)0x5103\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	492	Software control of the "Inhibit charging" signal. Allowable values:
	493
	494	0 – clear the signal;
	495
	496	1 – set the signal;
	497
	498	2-65535 – use the physical input "Inhibit charging".
15.1	499	)))\|(% style="width:87px" %)U16
	500	\|(% style="width:71px" %)0x5104\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	501	Software control of the "Inhibit discharging" signal. Allowable values:
	502
	503	0 – clear the signal;
	504
	505	1 – set the signal;
	506
	507	2-65535 – use the physical input "Inhibit discharging".
15.1	508	)))\|(% style="width:87px" %)U16
	509	\|(% style="width:71px" %)0x5105\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	510	Software control of the "CH contactor feedback" signal. Allowable values:
	511
	512	0 – clear the signal;
	513
	514	1 – set the signal;
	515
	516	2-65535 – use the physical input "Charging contactor feedback".
15.1	517	)))\|(% style="width:87px" %)U16
	518	\|(% style="width:71px" %)0x5106\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	519	Software control of the "DCH contactor feedback" signal. Allowable values:
	520
	521	0 – clear the signal;
	522
	523	1 – set the signal;
	524
	525	2-65535 – use the physical input "Discharging contactor feedback".
15.1	526	)))\|(% style="width:87px" %)U16
	527	\|(% style="width:71px" %)0x5107\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	528	Software control of the "Insulation status" signal. Allowable values:
	529
	530	0 – clear the signal;
	531
	532	1 – set the signal;
	533
	534	2-65535 – use the physical input "Insulation status".
15.1	535	)))\|(% style="width:87px" %)U16
	536	\|(% style="width:71px" %)0x5108\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	537	Software control of the "Charge request" signal. Allowable values:
	538
	539	0 – clear the signal;
	540
	541	1 – set the signal;
	542
	543	2-65535 – use the physical input "Charge request".
15.1	544	)))\|(% style="width:87px" %)U16
	545	\|(% style="width:71px" %)0x5109\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	546	Software control of the "Precharge request" signal. Allowable values:
	547
	548	0 – clear the signal;
	549
	550	1 – set the signal;
	551
	552	2-65535 – use the physical input "Precharge request".
15.1	553	)))\|(% style="width:87px" %)U16
	554	\|(% style="width:71px" %)0x510A\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	555	Software control of the "Discharge request" signal. Allowable values:
	556
	557	0 – clear the signal;
	558
	559	1 – set the signal;
	560
	561	2-65535 – use the physical input "Discharge request".
15.1	562	)))\|(% style="width:87px" %)U16
	563	\|(% style="width:71px" %)0x510B\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	564	Software control of the "PCH contactor feedback" signal. Allowable values:
	565
	566	0 – clear the signal;
	567
	568	1 – set the signal;
	569
	570	2-65535 – use the physical input "PCH contactor feedback".
15.1	571	)))\|(% style="width:87px" %)U16
	572	\|(% style="width:71px" %)0x510C\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	573	Software control of the "CH/DCH contactor feedback" signal. Allowable values:
	574
	575	0 – clear the signal;
	576
	577	1 – set the signal;
	578
	579	2-65535 – use the physical input "CH/DCH contactor feedback".
15.1	580	)))\|(% style="width:87px" %)U16
	581	\|(% style="width:71px" %)0x510D\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	582	Software control of the "Main contactor feedback" signal. Allowable values:
	583
	584	0 – clear the signal;
	585
	586	1 – set the signal;
	587
	588	2-65535 – use the physical input "Main contactor feedback".
15.1	589	)))\|(% style="width:87px" %)U16
	590	\|(% style="width:71px" %)0x510E\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	591	Software control of the "Interlock" signal. Allowable values:
	592
	593	0 – clear the signal;
	594
	595	1 – set the signal;
	596
	597	2-65535 – use the physical input "Interlock".
15.1	598	)))\|(% style="width:87px" %)U16
	599	\|(% style="width:71px" %)0x510F\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	600	Software control of the "Fuse 1" signal. Allowable values:
	601
	602	0 – clear the signal;
	603
	604	1 – set the signal;
	605
	606	2-65535 – use the physical input "Fuse 1".
15.1	607	)))\|(% style="width:87px" %)U16
	608	\|(% style="width:71px" %)0x5110\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	609	Software control of the "Fuse 2" signal. Allowable values:
	610
	611	0 – clear the signal;
	612
	613	1 – set the signal;
	614
	615	2-65535 – use the physical input "Fuse 2".
15.1	616	)))\|(% style="width:87px" %)U16
	617	\|(% style="width:71px" %)0x5111\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	618	Software control of the "Fuse 3" signal. Allowable values:
	619
	620	0 – clear the signal;
	621
	622	1 – set the signal;
	623
	624	2-65535 – use the physical input "Fuse 3".
15.1	625	)))\|(% style="width:87px" %)U16
	626	\|(% style="width:71px" %)0x5112\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	627	Software control of the "Circuit breaker status" signal. Allowable values:
	628
	629	0 – clear the signal;
	630
	631	1 – set the signal;
	632
	633	2-65535 – use the physical input "Circuit breaker status".
15.1	634	)))\|(% style="width:87px" %)U16
	635	\|(% style="width:71px" %)0x5113\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	636	Software control of the "Balancing request" signal. Allowable values:
	637
	638	0 – clear the signal;
	639
	640	1 – set the signal;
	641
	642	2-65535 – use the physical input "Balancing request".
15.1	643	)))\|(% style="width:87px" %)U16
	644	\|(% style="width:71px" %)0x5114\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
1.1	645	Software control of the "Close Main contactor" signal. Allowable values:
	646
	647	0 – clear the signal;
	648
	649	1 – set the signal;
	650
	651	2-65535 – use the physical input "Close Main contactor".
15.1	652	)))\|(% style="width:87px" %)U16
	653	\|(% style="width:71px" %)0x5115\|(% style="width:75px" %)1\|(% style="width:389px" %)(((
12.1	654	Software control of the "Close External 1" signal. Allowable values:
1.1	655
12.1	656	0 – clear the signal;
	657
	658	1 – set the signal;
	659
	660	2-65535 – use the physical input "Close External 1".
15.1	661	)))\|(% style="width:87px" %)U16
12.1	662
1.1	663

Wiki source code of 6.2 Modbus protocol

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