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Changes for page 5.2 Modbus protocol

Last modified by Admin on 2026/04/24 10:30
From version 7.1
edited by Admin
on 2024/12/11 10:49
Change comment: There is no comment for this version
To version 11.2
edited by Admin
on 2025/02/04 10:24
Change comment: There is no comment for this version

Summary

Details

Page properties
Parent
... ... @@ -1,1 +1,1 @@
1 -drafts.BMS Main 2\.1.5\. Communication protocols.WebHome
1 +Battery management systems.BMS Main 2\.1.5\. Communication protocols.WebHome
Content
... ... @@ -240,7 +240,11 @@
240 240  
241 241  bit 25 – “Power up”;
242 242  
243 -bits 26-31 – reserved.
243 +bit 26 — signal “External 1”;
244 +
245 +bit 27 — signal “Heater (AUX)”;
246 +
247 +bits 28-31 — not used.
244 244  )))|(% style="width:96px" %)U32
245 245  |(% style="width:92px" %)**0x200B**|(% style="width:94px" %)1|(% style="width:368px" %)(((
246 246  Discrete output signals (bitfield):
... ... @@ -268,7 +268,7 @@
268 268  
269 269  bits 4-15 — not used.
270 270  )))|(% style="width:96px" %)U16
271 -|(% style="width:92px" %)**0x200E**|(% style="width:94px" %)2|(% style="width:368px" %)(((
275 +|(% style="width:92px" %)**0x200E-0x200F**|(% style="width:94px" %)2|(% style="width:368px" %)(((
272 272  Errors 2 (bitfield):
273 273  
274 274  bit 0 – "Low CH temperature", temperature is too low for charging;
... ... @@ -299,7 +299,15 @@
299 299  
300 300  bit 13 – “General error”;
301 301  
302 -bits 14-31 — reserved.
306 +bit 14 — reserved (set to 0);
307 +
308 +bit 15 — reserved (set to 0);
309 +
310 +bit 16 — reserved (set to 0);
311 +
312 +bit 17 — “Precharge error”;
313 +
314 +bits 18-31 — not used.
303 303  )))|(% style="width:96px" %)U32
304 304  |(% style="width:92px" %)**0x2010**|(% style="width:94px" %)1|(% style="width:368px" %)Address or the BMS Logic device whose parameters are in registers 0x2011-0x20C9|(% style="width:96px" %)U16
305 305  |(% style="width:92px" %)**0x2011**|(% style="width:94px" %)1|(% style="width:368px" %)(((
... ... @@ -353,13 +353,19 @@
353 353  |(% style="width:92px" %)**0x20F4**|(% style="width:94px" %)1|(% style="width:368px" %)(((
354 354  Discrete input signals 2 (bitfield):
355 355  
356 -bit 0 – “Fuse 2”;
368 +bit 0 — “Fuse 2”;
357 357  
358 -bit 1 – “Fuse 3”;
370 +bit 1 — “Fuse 3”;
359 359  
360 -bit 2 – “Circuit breaker status”;
372 +bit 2 — “Circuit breaker status”;
361 361  
362 -bits 3-15 – reserved.
374 +bit 3 — signal "Balancing request";
375 +
376 +bit 4 — signal "Close Main contactor";
377 +
378 +bit 5 — signal "Close External 1";
379 +
380 +bits 6-15 — not used.
363 363  )))|(% style="width:96px" %)U16
364 364  |(% style="width:92px" %)**0x2100-0x2101**|(% style="width:94px" %)2|(% style="width:368px" %)Battery state of charge (SOC), %|(% style="width:96px" %)REAL32
365 365  |(% style="width:92px" %)**0x2102**|(% style="width:94px" %)1|(% style="width:368px" %)Number of BMS Logic devices|(% style="width:96px" %)U16
... ... @@ -422,15 +422,15 @@
422 422  |(% style="width:92px" %)**0x2181-0x2182**|(% style="width:94px" %)2|(% style="width:368px" %)Ethernet netmask|(% style="width:96px" %)U8[4]
423 423  |(% style="width:92px" %)**0x2183-0x2184**|(% style="width:94px" %)2|(% style="width:368px" %)Ethernet gateway|(% style="width:96px" %)U8[4]
424 424  |(% style="width:92px" %)**0x2185-0x2186**|(% style="width:94px" %)2|(% style="width:368px" %)Calibrated voltage in the reference line of the current sensor, V|(% style="width:96px" %)REAL32
425 -|(% style="width:92px" %)**0x218E**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage from the current sensor, V|(% style="width:96px" %)REAL32
426 -|(% style="width:92px" %)**0x2190**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage in the reference line of the current sensor, V|(% style="width:96px" %)REAL32
427 -|(% style="width:92px" %)**0x2192**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage from the auxiliary current sensor, V|(% style="width:96px" %)REAL32
428 -|(% style="width:92px" %)**0x2194**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage in the reference line of the auxiliary current sensor, V|(% style="width:96px" %)REAL32
429 -|(% style="width:92px" %)**0x219F**|(% style="width:94px" %)2|(% style="width:368px" %)Charge current limit, A|(% style="width:96px" %)REAL32
430 -|(% style="width:92px" %)**0x21A1**|(% style="width:94px" %)2|(% style="width:368px" %)Discharge current limit, A|(% style="width:96px" %)REAL32
443 +|(% style="width:92px" %)**0x218E-0x218F**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage from the current sensor, V|(% style="width:96px" %)REAL32
444 +|(% style="width:92px" %)**0x2190-0x2191**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage in the reference line of the current sensor, V|(% style="width:96px" %)REAL32
445 +|(% style="width:92px" %)**0x2192-0x2193**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage from the auxiliary current sensor, V|(% style="width:96px" %)REAL32
446 +|(% style="width:92px" %)**0x2194-0x2195**|(% style="width:94px" %)2|(% style="width:368px" %)Voltage in the reference line of the auxiliary current sensor, V|(% style="width:96px" %)REAL32
447 +|(% style="width:92px" %)**0x219F-0x21A0**|(% style="width:94px" %)2|(% style="width:368px" %)Charge current limit, A|(% style="width:96px" %)REAL32
448 +|(% style="width:92px" %)**0x21A1-0x21A2**|(% style="width:94px" %)2|(% style="width:368px" %)Discharge current limit, A|(% style="width:96px" %)REAL32
431 431  |(% style="width:92px" %)**0x21B8**|(% style="width:94px" %)1|(% style="width:368px" %)Flag indicating that the cells are balancing|(% style="width:96px" %)U16
432 -|(% style="width:92px" %)**0x21C6**|(% style="width:94px" %)2|(% style="width:368px" %)Calibrated voltage in the reference line of the auxiliary current sensor, V|(% style="width:96px" %)REAL32
433 -|(% style="width:92px" %)**0x21CA**|(% style="width:94px" %)2|(% style="width:368px" %)Average cell voltage, V|(% style="width:96px" %)REAL32
450 +|(% style="width:92px" %)**0x21C6-0x21C7**|(% style="width:94px" %)2|(% style="width:368px" %)Calibrated voltage in the reference line of the auxiliary current sensor, V|(% style="width:96px" %)REAL32
451 +|(% style="width:92px" %)**0x21CA-0x21CB**|(% style="width:94px" %)2|(% style="width:368px" %)Average cell voltage, V|(% style="width:96px" %)REAL32
434 434  |(% style="width:92px" %)**0x2200-0x2203**|(% style="width:94px" %)4|(% style="width:368px" %)(((
435 435  Record #1 from the errors journal. First 32-bit word contains a timestamp, second 32-bit word contains errors 1 flags (see 0x2007-0x2008).
436 436  
... ... @@ -452,12 +452,12 @@
452 452  |(% style="width:92px" %)**0x2208-0x227B**|(% style="width:94px" %) |(% style="width:368px" %)Records #3-31 from the errors journal|(% style="width:96px" %)
453 453  |(% style="width:92px" %)**0x227C-0x227F**|(% style="width:94px" %)4|(% style="width:368px" %)Record #32 from the errors journal|(% style="width:96px" %)U32[2]
454 454  |(% style="width:92px" %)**0x2300**|(% style="width:94px" %)1|(% style="width:368px" %)Number of the last record from the errors journal (1..32)|(% style="width:96px" %)U16
455 -|(% style="width:92px" %)**0x2380**|(% style="width:94px" %)4|(% style="width:368px" %)Record data #1 from the errors journal. First 32-bit word contains errors 2 flags (see 0x200E-0x200F).|(% style="width:96px" %)U32[2]
473 +|(% style="width:92px" %)**0x2380-0x2383**|(% style="width:94px" %)4|(% style="width:368px" %)Record data #1 from the errors journal. First 32-bit word contains errors 2 flags (see 0x200E-0x200F).|(% style="width:96px" %)U32[2]
456 456  |(% style="width:92px" %)**0x2384-0x2387**|(% style="width:94px" %)4|(% style="width:368px" %)Record data #2 from the errors journal|(% style="width:96px" %)U32[2]
457 457  |(% style="width:92px" %)**0x2388-0x23FB**|(% style="width:94px" %) |(% style="width:368px" %)Records data #3-31 from the errors journal|(% style="width:96px" %)
458 458  |(% style="width:92px" %)**0x23FC-0x23FF**|(% style="width:94px" %)4|(% style="width:368px" %)Record data #32 from the errors journal|(% style="width:96px" %)U32[2]
459 -|(% style="width:92px" %)**0x2400**|(% style="width:94px" %)2|(% style="width:368px" %)Current measured by the auxiliary current sensor, A|(% style="width:96px" %)REAL32
460 -|(% style="width:92px" %)**0x2402**|(% style="width:94px" %)2|(% style="width:368px" %)(((
477 +|(% style="width:92px" %)**0x2400-0x2401**|(% style="width:94px" %)2|(% style="width:368px" %)Current measured by the auxiliary current sensor, A|(% style="width:96px" %)REAL32
478 +|(% style="width:92px" %)**0x2402-**|(% style="width:94px" %)2|(% style="width:368px" %)(((
461 461  Final battery current, A
462 462  
463 463  Note — Typically it is the sum of the values measured by the main and auxiliary current sensors